Abrégé

Quasi-optical beamformer (1) comprising. -a plurality N > 1 of powei feeds (PF), each of the i c [1;N] power feeds (PF) being configured to emit a respective radio-frequency beam denoted Ri, - a radio-frequency transmission line (LT) fed at a first end by the power feeds and comprising at a second end a plurality of network ports (PR) that are configured to collect radio-frequency radiation, the transmission line (LT) comprising a radio-frequency waveguide (GO) that comprises at least two metal plates (PM) that are stacked so as to guide the radio-frequency beams Ri, i c [1; IV] towards the network ports (PR), the lransmission line (LT) extending along a cenlral main axis denoted axis x, - a first reflector (M1) having a first centre (C1) centred on the axis x and a first effective radius of curvature and being configured to reflect the guided radio-frequency beams Roi c [1; N], - a second reflector (M2) having a second effective radius of curvature and being configured to reflect the radio-frequency beams (RF) reflected by the first reflector so as to direct them towards the network ports so as to form output radio-frequency beams (RSi), the first and second effective radii of curvature and an arrangement of the power feeds (PF) with respect to the first reflector being configured so that - each of the output radio-frequency beams (RS,) is a plane wave, and - a transverse amplitude distribution Ai, on the network ports (PR), of each output radio-frequency beam (RS), is substantially identical

Classes IPC  ?

• H01Q 19/17 - Combinaisons d'éléments actifs primaires d'antennes avec des dispositifs secondaires, p.ex. avec des dispositifs quasi optiques, pour donner à une antenne une caractéristique directionnelle désirée utilisant des surfaces réfléchissantes où les surfaces sont concaves la source rayonnante primaire comprenant plusieurs éléments rayonnants
• H01Q 15/14 - Surfaces réfléchissantes; Structures équivalentes
• H05K 1/02 - Circuits imprimés - Détails

Abrégé

The invention relates to a multibeam satellite radiocommunications system com prising: - at least one satellite having at least one passive multibeam antenna system, - at least one satellite terminal, - a resource allocator configured to form a regular network of satellite spots arranged according to a mesh in quadrilateral form over a given geographic zone, to associate spectral resources with the satellite spots, then to allocate spectral resources to the satellite terminals as a function of their position, in which the resource allocator is configured to, in the event of failure of a satellite spot (701), extend the zone of coverage of the satellite spots (702, 703, 704, 705) adjacent to the failing satellite spot so as to cover the surface that it occupies, and allocate new spectral resources to the satellite terminals of the failing satellite spot as a function of their position. The invention relates also to a resource allocator and the corresponding method.

Abrégé

Procédé de génération d'au moins un élément de trajectoire (T) pour le contrôle d'un aéronef (1) selon l'élément de trajectoire (T), le procédé de génération étant au moins partiellement mis en oeuvre par un système de génération (2) embarqué dans l'aéronef (1), et comprenant des étapes de : - réception d'une première donnée initiale enregistrée dans une première base de données (6), la première base de données (6) présentant un premier niveau d'intégrité prédéfini, dit niveau d'intégrité initial ; - réception d'une seconde donnée initiale enregistrée dans une seconde base de données (8), la seconde base de données (8) présentant ledit niveau d'intégrité initial, la première base de données (6) étant dissimilaire par rapport à la seconde base de données (8) ; - comparaison d'au moins une première donnée de trajectoire (D1) avec au moins une seconde donnée de trajectoire (D2) ; - obtention de l'élément de trajectoire (T).

Abrégé

What is proposed is a device (300) for controlling radiofrequency beams of a given polarization, the device comprising a set of at least one cell (400), comprising a support frame (420) and at least one interconnection (460) internal to the frame. The frame is inscribed within a prism, having a given axis Z' and Ar faces connected to one another by Ar edges oriented along the axis Z'. The frame comprises Ar corner elements, each having a rim coincident with an edge and being arranged such that the frame has, on each face, a slot (440-n) extending along the axis Z'. The interconnection comprises Ar inductive rods (462-n), each comprising two ends of which a first end is connected to a rim, the second ends being connected to one another at a connection point positioned in the centre of the frame in a plane orthogonal to the axis Z'. Each cell is configured to carry out polarization- invariant transmission and/or reflection of beams.

Classes IPC  ?

• H01Q 15/10 - Dispositifs de réfraction ou diffraction, p.ex. lentille, prisme concernant un réseau de discontinuité d'impédance tridimensionnel, p.ex. trous dans une surface conductrice ou disques conducteurs formant diélectrique artificiel

Abrégé

High-voltage electrical connector (1) for the space sector, comprising a male portion (M) and a female portion (F), which are intended to produce an electrical contact (CE) between the portions, said male portion comprising: - a metallic male external shell (CM); - a male dielectric block (DM) encapsulated by the male shell and having a male structured region (RSM) comprising what is called a male recess (RM); the female portion (F) comprising: - a metallic female external shell (CF) - a female dielectric block (DF) encapsulated by the female shell and having a female structured region (RSF) comprising a female recess (RF); the male or female external shell having at least one opening (O), the male structured region having a shape that complements a shape of the female structured region, so that the male structured region is capable of being inserted into the female structured region in order to allow the electrical contact and so as to create a leakage duct (AC) between the female structured region and the male structured region allowing the air included between the female structured region and the male structured region to flow to said at least one opening.

Classes IPC  ?

• H01R 24/00 - Dispositifs de couplage en deux pièces, ou l'une des pièces qui coopèrent dans ces dispositifs, caractérisés par leur structure générale
• H01R 13/533 - Socles ou boîtiers conçus pour l'emploi dans des conditions extrêmes, p.ex. haute température, rayonnements, vibrations, environnement corrosif, pression
• H01R 13/629 - Moyens additionnels pour faciliter l'engagement ou la séparation des pièces de couplage, p.ex. moyens pour aligner ou guider, leviers, pression de gaz

Abrégé

The invention relates to a quasi-optical beam former (1) comprising a set of beam ports (6, 8), a set of network ports, a quasi-optical device and at least one parallel- plate waveguide (2, 3, 5) extending between the beam ports (6, 8) and the network ports, the beam ports (6, 8) and/or the network ports being superposed in at least two stages, each of the at least two stages being separated by a conductive plane (4) common to two adjacent stages, the quasi-optical beam former (1) comprising a resistive film (11) placed in the continuity of the conductive plane (4).

Classes IPC  ?

• H01Q 15/00 - Dispositifs pour la réflexion, la réfraction, la diffraction ou la polarisation des ondes rayonnées par une antenne, p.ex. dispositifs quasi optiques
• H01Q 1/28 - Adaptation pour l'utilisation dans ou sur les avions, les missiles, les satellites ou les ballons
• H01Q 21/00 - Systèmes ou réseaux d'antennes

Abrégé

The invention provides a system (100) comprising input or output channels linked to nominal and redundant equipment items, and at least one redundancy matrix (10) for routing the signals of a channel from one equipment item to a redundant (20') or nominal (20) equipment item, represented by a connection grid having rows corresponding to the channels of the system and columns corresponding to the equipment items (20, 20') of the system, and connection points comprising: - the points of intersection of a nominal path situated on a nominal diagonal of the connection grid, and - the points of intersection of a redundant path of the connection grid situated between each row corresponding to a channel Ci and a column corresponding to a redundant element Rgo of index f (i) , f being surjective, the redundancy matrix being implemented in the form of a circuit comprising switches arranged according to the connection grid.

Abrégé

The invention relates to a satellite (SAT) comprising a platform (PF), at least one solar panel (PS) for supplying the satellite (SAT) with electrical energy, the solar panel (PS) being fixed along one side of the platform (PF), the satellite comprising an antenna system (Rx+Z, Rx-Z, Tx+Z, Tx-Z) comprising two remote control antennas (Rx+Z, Rx-Z) and two remote measurement antennas (Tx+Z, Tx-Z), in which: - the two remote control antennas (Rx+Z, Rx-Z) are disposed back to back on either side of the platform, and spaced one from the other by a distance less than or equal to A, where A corresponds to the wavelength of the remote control or remote measurement signal, - the two remote measurement antennas (Tx+Z, Tx-Z) are disposed back to back, on either side of the platform, and spaced one from the other by a distance less than or equal to A, - the antenna system is disposed at one of the two ends of the side of the platform (PF) on which the solar panel (PS) is fixed.

Abrégé

L'invention concerne un système de communication (1) 5G entre au moins un terminal mobile (UE) et un réseau central (CN), ledit système de communication (1) comprenant au moins un satellite (SAT), un réseau d'accès comportant une pluralité de station de base (gNB) et une passerelle (Gate) disposée entre ledit satellite (SAT) et une des stations de base (gNB). Ledit satellite (SAT) et ladite passerelle (Gate) étant apte à échanger des trames de service comprenant des trames de service montantes (UE UL) et des trames de service descendantes (UE DL), lesdites trames de service montantes (UE UL) devant être alignées temporellement avec lesdites trames de service descendantes (UE DL) autour d'un point de référence temporel.

Abrégé

The invention relates to a method for compensating time differences for the time alignment of uplink service frames (UE UL) and downlink service frames (UE DL), said uplink service frames (UE UL) and said downlink service frames (UE DL) being exchanged between a satellite (SAT) and a mobile terminal (UE). The mobile terminal (UE) belonging to a 5G cell comprising a cell centre, the pre-compensation is calculated on the basis of a main beam directed towards the centre (O) of said cell (5G).Figure for the abstract: Fig. 1

Abrégé

Method for allocating resources in an active multi-beam antenna satellite telecommunications system operating in a given frequency band and for a given coverage area in which a plurality of user terminals is located, the method comprising the steps of: - decomposing (501) the frequency band into sub-bands such that, in each sub-band, the beams formed by the antenna are stable for all of the frequencies of the sub-band, - determining (502), for each sub-band, a grid of orthogonal beams making it possible to cover some of the coverage area, - defining several subsets of user terminals and allocating (503), to each subset, one of the grids of orthogonal beams and a pointing direction of this grid so that each beam in the grid points towards at least one of the user terminals in the subset.

Abrégé

An iris diaphragm (1) having an optical axis (O), comprising: - a fixed ring (RF), - a plurality of [Formula (I)] blades (L) defining a diaphragm aperture (OD) of predetermined shape, the blades being able to move in a plane perpendicular to the optical axis with respect to the fixed ring, each blade comprising a control pin (PC), - a control ring (RC) designed to rotate about the optical axis with respect to the fixed ring and comprising m control guideways (GC), each control pin (PC) being able to move along a respective one of the control guideways by bearing along the respective control guideway, a rotation of the control ring (RC) about the optical axis giving rise, via the movement of the control pins (PC) in the control guideways, to the movement of the blades with respect to the fixed ring so as to modify the area of the aperture while maintaining the predetermined aperture shape, without causing a rotation of the predetermined shape with respect to the fixed ring.

Classes IPC  ?

• G03B 9/06 - Plusieurs lames montées sur pivot et coopérant, p.ex. du type à iris

Abrégé

Method for generating a secure secret key, comprising the following steps: A. receiving, in a communication station (SA) referred to as the transmitting station, a first secret key (KEK) by way of a quantum encryption channel (CQAB) via satellite (Sat), the first secret key also being transmitted to at least one other communication station (SB) by way of the quantum encryption channel; B. generating, in the transmitting station, a second secret key (KS) using a trusted random number generator (TRNG); C. generating an encrypted secret key (KC) using the first secret key (KEK) and the second secret key (KS) by the one-time pad method; D. transmitting the encrypted secret key (KC) from the transmitting station (SA) to the one or more other communication stations (SB).

Classes IPC  ?

• H04L 9/08 - Répartition de clés
• H04L 9/14 - Dispositions pour les communications secrètes ou protégées; Protocoles réseaux de sécurité utilisant plusieurs clés ou algorithmes

Abrégé

An iris diaphragm (1) having an optical axis (O), comprising:-a fixed ring (RF),-a mobile ring (RM) designed to rotate about the optical axis with respect to the fixed ring and comprising a plurality n of guidance guideways (GG),-a plurality of n blades (L) defining an elliptical diaphragm aperture (OE) having a major axis (a) and a minor axis (b), each blade being able to pivot with respect to the fixed ring about a respective axis and comprising a respective mobile pin (PM) able to move in one of the respective guidance guideways (GG) by bearing along the respective guidance guideway, -a control ring (RC) designed to rotate about the optical axis with respect to the fixed ring and comprising a control guideway (GC) in which one of the mobile pins, referred to as control pin (PC), is able to move by bearing along the control guideway,a shape of each guidance guideway (GG) on which the respective mobile pin (PM) bears being designed so that a rotation of said control ring (RC) about the optical axis gives rise, via the control pin (PC), to a rotation of said mobile ring (RM) and a movement of the mobile pins (PM) in the guidance guideways (GG) so as to modify an area of the elliptical aperture (OE) without modifying an orientation of the major axis and of the minor axis and without modifying a ratio of the major axis to the minor axis.

Classes IPC  ?

• G03B 9/06 - Plusieurs lames montées sur pivot et coopérant, p.ex. du type à iris

Abrégé

Method for protecting a reconfigurable digital integrated circuit comprising multiple parallel processing channels each comprising an instance of a functional logic block and an error detection unit, the method comprising the successive steps of: o Activating (501) the error detection unit in order to detect an error in at least one processing channel, o executing (502) the data replay mechanism, and then o activating (503) the error detection unit in order to detect an error in at least one processing channel, o If an error is detected again, executing (504) a self-test on each processing channel, o For each processing channel, = If the self-test does not detect any error, executing the data replay mechanism for this processing channel, = If the self-test detects an error, reconfiguring that part of the configuration memory associated with this processing channel.

Classes IPC  ?

• G06F 11/00 - Détection d'erreurs; Correction d'erreurs; Contrôle de fonctionnement
• G06F 11/07 - Réaction à l'apparition d'un défaut, p.ex. tolérance de certains défauts

Abrégé

The present invention relates to an electronic portion (17) of a CRPA antenna (15) of an anti-jamming device (10) for a GNSS receiver (12), comprising: - M elementary signal inputs (21); - for each input (21), a bandpass filter bank which is configured to break down each elementary signal received by this input at a frequency Fe into P sub-bands to obtain P sub-sampled signals at a frequency Fe/P; - a calculation component which is configured to apply in parallel anti-jamming processing at the frequency Fe/P to the sub-sampled signals to obtain a cleaned sub-sampled signal; - a summation component which is configured to receive all the cleaned sub-sampled signals and to form, from these sub-sampled signals, a resulting corresponding cleaned signal at the frequency Fe.

Classes IPC  ?

• G01S 19/21 - Problèmes liés aux interférences
• G01S 19/37 - Récepteurs - Détails de construction ou détails de matériel ou de logiciel de la chaîne de traitement des signaux - Détails de matériel ou de logiciel de la chaîne de traitement des signaux

Abrégé

The invention relates to a method for managing a secondary radar operating in Mode S, the method comprising: a) a detection in "seeking mode", said "seeking mode" being implemented until an aircraft is detected by the secondary radar; b) a detection in "tracking mode", said "tracking mode" being implemented if a valid response to a roll-call interrogation was detected in "seeking mode"; the method being characterized in that it comprises an intermediate step al), which is executed between the detection in "seeking mode" and the detection in "tracking mode", said intermediate step comprising: detecting the presence or absence of the reply of the aircraft in a noise window of the secondary radar; carrying out at least one roll-call interrogation, using the first monitoring window, if the reply of the aircraft is not located in said noise window.

Classes IPC  ?

• G01S 13/74 - Systèmes utilisant la reradiation d'ondes radio, p.ex. du type radar secondaire; Systèmes analogues

Abrégé

The invention relates to a method for communication between an air traffic control system and a communication module, said communication method comprising:- a step of determining environmental optimization time slots (401, 402, 403, 404, 405) based on the air traffic absorption capacities of the various flight information regions (301, 302, 303, 304, 305), said environmental optimization time slots (401, 402, 403, 404, 405) at least partially covering one or more flight information regions, each environmental optimization time slot (401, 402, 403, 404, 405) having an associated efficiency level; - a step of negotiation, between the pilot via the communication module and the air traffic control system, to negotiate changes to the flight plan on the basis of the environmental optimization time slots (401, 402, 403, 404, 405) and the environmental optimization levels of said environmental optimization time slots (401, 402, 403, 404, 405).

Classes IPC  ?

• G08G 5/00 - Systèmes de commande du trafic aérien

Abrégé

Scope (LT) viewing a scene, said scope comprising a first optical subassembly (1), called the afocal module, and a second optical subassembly (2), called the display module, said afocal module (1) comprising: a removable and switchable linear polarizer (POL1), a first polarization splitter element (LS1), an afocal optical system for the first polarization splitter element (LS1), said display module comprising: a "distributing" half-wave plate (HP), a display (EA), an optical objective (Obj) designed to collimate the display light; a second polarization splitter element (LS2) arranged after the distributing half-wave plate (HP).

Classes IPC  ?

• F41G 1/38 - Appareils de visée télescopiques spécialement adaptés aux armes à feu individuelles ou aux pièces d'artillerie; Leurs supports ou leurs montures

Abrégé

The present invention relates to a method for assisting with firing on a moving target, comprising the steps of: (a) displaying, in a targeting window, superposed onto the direct view of a scene, a main indicator representing a firing axis of a firing system (14); (b) measuring a distance between the main indicator and a target in the scene; (c) determining the speed of movement of the target; (d) determining a targeting position, in the targeting window, anticipating an angular movement of the target in relation to the firing axis according to the speed of movement of the target, the speed of a projectile and the measured distance; and (e) displaying, in the targeting window, a secondary indicator at the determined targeting position.

Classes IPC  ?

• F41G 1/473 - Appareils de visée pour utilisations particulières pour l'indication de correction de vitesse ou de distance, p.ex. sur les fusils ou les fusils de chasse

Abrégé

Said aircraft (10) comprises: a cell comprising a fuselage (12), a wing unit (14) and a tail unit (16); a main propulsion group (20) consisting of a motor (22) and a propeller (24); a flight control device (30) comprising electrical actuators (35), movable surfaces (31 to 34) and sensors (36); and an automatic piloting computer (40) which sends instructions to the main propulsion group and to the flight control device. Said unmanned aircraft further comprises a pair of auxiliary propulsion groups (51, 52), each auxiliary propulsion group comprising an electric motor, a propeller which is driven by the electric motor and a means for orienting the plane of the propeller relative to the cell, the piloting computer (40) being programmed to adjust an orientation angle and a rotation speed of the propeller of each auxiliary propulsion group in order to overcome a malfunction in the flight control device and/or the main propulsion group so as to control the path in all the axes, the unmanned aircraft thereby having increased reliability.

Classes IPC  ?

• B64C 39/02 - Aéronefs non prévus ailleurs caractérisés par un emploi spécial
• B64C 15/14 - Commande de l'assiette, de la direction du vol ou de l'altitude par jets réactifs les jets étant autres que les jets propulsifs principaux
• B64D 27/02 - Aéronefs caractérisés par le type ou la position des groupes moteurs

Abrégé

The embodiments of the invention provide a method for guiding an autonomous aircraft (100), the aircraft comprising an automatic pilot (102), a plurality of sensors and an imaging unit (101), the aircraft being configured to fly over a geographic zone comprising overflight prohibited zones (20), the guidance method can advantageously comprise a phase of real flight of the autonomous aircraft (100) by using a given guidance law, comprising the following steps: -determining (701) a current state of the autonomous aircraft (100); -determining (702) an optimum action to be executed by using a neural network (500) receiving the current state;-determining (703) a plurality of control instructions compatible with the guidance law based on the optimum action to be executed;-transmitting (704) to the automatic pilot (102) the plurality of control instructions, which provides a new state of the autonomous aircraft (100).

Classes IPC  ?

• G05D 1/646 - Suivi d’une trajectoire prédéfinie, p. ex. d’une ligne marquée sur le sol ou d’une trajectoire de vol
• G06N 3/092 - Apprentissage par renforcement
• G06N 3/02 - Réseaux neuronaux
• G05D 1/644 - Optimisation des paramètres de parcours, p. ex. consommation d’énergie, réduction du temps de parcours ou de la distance

Abrégé

The invention relates to a device (16) for determining the attitude of a carrier comprising a GNSS receiver capable of receiving GNSS signals from one or more antennas (14) arranged in known positions, the determining device (16) comprising: - a movement generation module (22) configured to generate a movement of an apparent phase center according to a control law; - a control module (23) configured to determine the control law; - a determination module (24) configured to determine an absolute orientation of a vector of interest from at least one observable value provided by the GNSS receiver (12) and from the control law, and to determine at least one component of the attitude of the carrier from the absolute orientation of the vector of interest.

Classes IPC  ?

• G01S 19/53 - Détermination d'attitude

Abrégé

The present invention relates to a low capability device (UE) active in a communication system comprising a plurality of satellites (Si, Sj) insuring a temporally continuous communication coverage for the low capability device (UE), said satellites being further grouped in families (S1x), satellites of a same family (S1x) sharing same and common access information, said device (UE) comprises a power saving module to send to the serving satellite (S11), during a first data session, a next access request for a next or continued data session with time indications including at least a desired next time interval to be granted for communication, to receive and process assigned timing information for a next connection to a next satellite (S12) of the same family (S1x), to adapt the idle mode according to received idle mode synchronization information in order for the device (UE) to receive information from the next satellite (S12) of the same family (S1x) and to connect to the next designated satellite (S12) of the same family (S1x), reusing same and common access information as read for the previously serving satellite (S11).

Classes IPC  ?

• H04B 7/185 - Stations spatiales ou aériennes
• H04W 52/02 - Dispositions d'économie de puissance
• H04W 52/28 - Commande de puissance d'émission [TPC Transmission power control] le TPC étant effectué selon des paramètres spécifiques utilisant le profil utilisateur, p.ex. la vitesse, la priorité ou l'état du réseau, p.ex. en attente, libre ou absence de transmission
• H04W 76/28 - Transmission discontinue [DTX]; Réception discontinue [DRX]

Abrégé

The invention relates to a device (16) for detecting GNSS signal multipaths for a GNSS receiver (12) on board a carrier that further comprises one or more antennas (14), the device comprising: - a movement generation module (22) configured to generate a movement of an apparent phase center according to a control law; - a control module (23) configured to determine the control law; - a prediction module (24) configured to determine a prediction of an observable value, provided by the GNSS receiver (12), from the control law and directions from which the GNSS signals arrive; - an anomaly detection module (25) configured to detect multipaths by comparing an observable value from the GNSS receiver (12) with the corresponding prediction.

Classes IPC  ?

• G01S 19/22 - Problèmes liés aux multitrajets

Abrégé

Said electronic device (10) for storing a terrain database (15) for an avionics system (20) is on board an aircraft (5). The terrain database (15) corresponds to an area of land over which the aircraft (5) is likely to fly, the zone being represented in the form of a surface area divided into grid squares, each grid square corresponding to a sector of the area of land, the terrain database (15) having a first resolution and comprising first terrain elevation values which are each associated with a respective grid square. The terrain database (15) further comprises, for each grid square, an uncertainty value associated with the respective first elevation value, at least one uncertainty value being calculated from a plurality of second terrain elevation values associated with the grid square and derived from a second terrain database (35) having a second resolution that is higher than the first resolution.

Classes IPC  ?

• G06F 16/29 - Bases de données d’informations géographiques
• G06F 16/56 - Recherche d’informations; Structures de bases de données à cet effet; Structures de systèmes de fichiers à cet effet de données d’images fixes en format vectoriel

Abrégé

The present invention relates to a method for determining, using an optronic system (18), positions in a scene (10), the scene (10) comprising reference elements (12) for known geographic coordinates, the optronic system (18) comprising the following elements which are integrated into the optronic system (18): a. a digital imager, b. a memory which stores, for each reference element (12) of the scene, an indicator representative of the point associated with the geographic coordinates of the point, c. an element that displays the indicators stored in the memory, d. a measurement module comprising at least one element selected from: a compass, a goniometer and a telemeter; and e. a calculation unit, the method being carried out by the elements integrated in the optronic system (18).

Classes IPC  ?

• F41G 3/00 - Dispositifs de pointage
• G01S 19/39 - Détermination d'une solution de navigation au moyen des signaux émis par un système de positionnement satellitaire à radiophares le système de positionnement satellitaire à radiophares transmettant des messages horodatés, p.ex. GPS [Système de positionnement global], GLONASS [Système mondial de satellites de navigation] ou GALILEO
• G01S 19/48 - Détermination de position en combinant ou en commutant entre les solutions de position dérivées du système de positionnement par satellite à radiophares et les solutions de position dérivées d'un autre système
• F41G 3/02 - Dispositifs de pointage utilisant une ligne de visée indépendante, p.ex. télépointeur
• F41G 3/06 - Dispositifs de pointage avec télémètre
• F41G 3/16 - Dispositifs de visée adaptés pour le pointage indirect
• G01C 1/00 - Mesure des angles
• G01C 3/00 - Mesure des distances dans la ligne de visée; Télémètres optiques
• G01C 11/00 - Photogrammétrie ou vidéogrammétrie, p.ex. stéréogrammétrie; Levers photographiques
• G01C 15/00 - Instruments de géodésie ou accessoires non prévus dans les groupes
• G01C 21/16 - Navigation; Instruments de navigation non prévus dans les groupes en utilisant des mesures de la vitesse ou de l'accélération exécutées à bord de l'objet navigant; Navigation à l'estime en intégrant l'accélération ou la vitesse, c. à d. navigation par inertie
• G01C 21/20 - Instruments pour effectuer des calculs de navigation
• G01S 5/02 - Localisation par coordination de plusieurs déterminations de direction ou de ligne de position; Localisation par coordination de plusieurs déterminations de distance utilisant les ondes radioélectriques
• G01S 5/16 - Localisation par coordination de plusieurs déterminations de direction ou de ligne de position; Localisation par coordination de plusieurs déterminations de distance utilisant des ondes électromagnétiques autres que les ondes radio

Abrégé

Procédé d'émission de trames radio (301) consistant à : pour un espacement quelconque entre sous-porteuses fréquentielles, un nombre déterminé d'échantillons N par symbole OFDM utile et une bande fréquentielle d'émission déterminée, où lesdits espacement nombre d'échantillons N par symbole OFDM utile et bande fréquentielle d'émission BW sont tels que prescrits par la norme 3GPP 5G NR et définissent une configuration d'émission courante, générer des symboles OFDM utiles ; constitution d'une trame radio dans laquelle chaque symbole OFDM utile est précédé d'un préfixe cyclique répétant une partie dudit symbole OFDM utile. II se caractérise en ce que le nombre total de symboles OFDM utiles dans un demi- slot radio associé a la trame radio est égal au nombre prescrit par la norme 3GPP 5G NR pour ladite configuration et en ce qu'une durée du demi-slot radio est augmentée de maniere a pouvoir accommoder ledit nombre de symboles OFDM utiles tout en augmentant également la taille des préfixes cycliques ajoutés aux symboles OFDM utiles par rapport a la taille des préfixes cycliques prescrites par ladite norme 3GPP 5G NR pour ladite configuration.

Classes IPC  ?

• H04J 11/00 - Systèmes multiplex orthogonaux
• H04J 1/00 - Systèmes multiplex à division de fréquence

Abrégé

The invention relates to a method for determining the position of a decoy (102) using at least one receiver (1031,... 103j, ...103N), the method comprising a step (E3) for detecting a decoy attack (102), a step (E5) for correcting the clock bias delivered by the receiver (1031,... 103j, ...103N) based on an estimated drift (Dj) of the clock of the receiver. The method comprises a step (E6) for differential measurements using at least three corrected clock biases (CBjcorr(t"), CBkcorr(t"), Cacorr(t")) and a localization step for determining the position of the decoy (102).

Classes IPC  ?

• G01S 19/21 - Problèmes liés aux interférences

Abrégé

The invention relates to a magic tee microwave junction comprising: - an E-plane tee junction comprising a difference arm (201) along a first axis (Ox) in a reference plane (x0z) and two collinear arms (202, 203) that are symmetric about the reference plane, - an H-plane tee junction comprising a sum arm (211) along an axis (0'z') orthogonal to the first axis in the reference plane and two collinear arms (212, 213) that are symmetric about the reference plane, - two first waveguides (221, 222) that are symmetric about the reference plane, connected to the ends of the collinear arms of the junctions, - two waveguides (231, 232) that are symmetric about the reference plane and connected to the first waveguides. The invention also relates to a power divider, to a beamforming network and to an additive manufacturing production method.

Classes IPC  ?

• H01P 5/20 - Jonctions en T magique

Abrégé

The invention relates to a device and a method for handling volatile powders. The device comprises a hermetically sealed chamber (12) comprising a hatch (20) able to close an opening (16) made through a wall (18) of the hermetically sealed chamber (12), on the outside of the hermetically sealed chamber (12), the device (10) comprising:- a flexible container (26) intended to receive a package (24) containing volatile powders (22),- means for sealed attachment of the flexible container (26) of which an opening (28) mates in a sealed manner with the opening (16) of the hermetically sealed chamber (12),- a mobile support (36) on which the flexible container (26) rests,- a mechanism (40) for moving the mobile support (36) translationally toward the opening (16) of the hermetically sealed chamber (12).

Classes IPC  ?

• B25J 21/02 - Boîtes à gants, c. à d. enceintes dans lesquelles les manipulations sont exécutées par des mains humaines dans des gants faisant partie de la paroi de l'enceinte; Gants de boîtes à gants
• B65B 1/32 - Dispositifs ou procédés pour régler ou déterminer la quantité ou la qualité du matériau fourni ou chargé par pesage
• B65B 5/04 - Emballage d'objets séparés

Abrégé

Procédé et module d'émission de trames radio, procédé et module de réception de trames radio, trame radio associée. Ce procédé, réalisé par un module électronique d'émission radio, consiste à : pour un espacement Af quelconque entre sous-porteuses fréquentielles préalablement sélectionné entre plusieurs espacements, un nombre déterminé d'échantillons N par symbole OFDM utile et une bande fréquentielle d'émission BW déterminée où lesdits espacement Af, nombre d'échantillons N par symbole et bande fréquentielle d'émission BW sont tels que prescrits par la norme 3GPP 5G NR et définissant une configuration d'émission courante, générer des symboles OFDM utiles ; constituer une trame radio de durée 10 ms comprenant certains des symboles OFDM utiles générés et dans laquelle chaque symbole OFDM utile est précédé d'un préfixe cyclique, respectivement suivi d'un suffixe cyclique, répétant une partie dudit symbole utile. Il se caractérise en ce que le nombre total de symboles OFDM utiles dans la trame radio est strictement inférieur au nombre prescrit par la norme 3GPP 5G NR pour ladite configuration et en ce que la ressource ainsi libérée dans la trame radio est utilisée en augmentant la taille des préfixes, respectivement suffixes, cycliques desdits symboles par rapport à la taille des préfixes prescrites pour ladite configuration par ladite norme.

Classes IPC  ?

• H04B 7/00 - Systèmes de transmission radio, c. à d. utilisant un champ de rayonnement

Abrégé

The invention relates to a container for transporting volatile powders and comprising a hermetically sealed chamber of tubular shape with circular cross section about an axis, a suction duct (66) configured to extract the volatile powder placed in the hermetically sealed chamber, the suction duct (66) opening into the hermetically sealed chamber (50) by means of a pipe (70) mobile in terms of rotation about the axis and mobile in terms of translation along the axis, the pipe (70) comprising a first tube (72) extending along the axis and a second tube (74) extending radially with respect to the axis, the first tube (72) and the second tube (74) each comprising an internal channel (72a, 74a) communicating with the suction duct (66), the second tube (74) having at least one opening which opens into the hermetically sealed chamber and which communicates with the internal channel (74a) thereof, the opening allowing the extraction of the powder situated inside the hermetically sealed chamber.

Classes IPC  ?

• B65D 25/38 - Dispositifs pour décharger le contenu
• B65D 25/54 - Ouvertures ou fenêtres d'inspection
• B65D 83/06 - Réceptacles ou paquets comportant des moyens particuliers pour distribuer leur contenu pour distribuer un matériau pulvérulent ou granulaire

Abrégé

The embodiments of the invention provide a localization method, implemented in a satellite system (10) comprising at least a first constellation (100) associated with a probability of occurrence of multiple failures lower than a given integrity risk, where the method may advantageously comprise the following steps implemented by a radioelectric device (20):-receive (401) a plurality of navigation signals;-select (402) failure modes to be monitored other than the multiple failures of the first constellation;-determine (403) a navigation solution and a plurality of navigation sub-solutions;-calculate (404), for each navigation sub-solution, one or more corresponding detection thresholds;-calculate (405) one or more protection levels.

Classes IPC  ?

• G01S 19/20 - Contrôle d'intégrité, détection ou isolation des défaillances du segment spatial

Abrégé

The present invention relates to a device (10) for amplifying a multi-wavelength laser beam, comprising: a. a gain medium (M) having a front face (20) intended to receive the beam to be amplified on each passage through the gain medium (M), and a reflective rear face (22) that is inclined with respect to the front face (20), the beam reflected by the rear face (22) and refracted by the front face (20) on the n-th passage being called the n-th useful beam, and b. a steering first optical unit (18) placed on the path of the first useful beam (FU1), and configured so as to steer the first useful beam (FU1) to the front face (20) for a second passage through the gain medium (M) in such a way that the sub-beams of each wavelength, forming the second useful beam (FU2), are parallel to one another at the end of the second passage.

Classes IPC  ?

• H01S 3/00 - Lasers, c. à d. dispositifs utilisant l'émission stimulée de rayonnement électromagnétique dans la gamme de l’infrarouge, du visible ou de l’ultraviolet
• H01S 3/042 - Dispositions pour la gestion thermique pour des lasers à l'état solide
• H01S 3/06 - Structure ou forme du milieu actif
• H01S 3/08 - Structure ou forme des résonateurs optiques ou de leurs composants
• H01S 3/081 - Structure ou forme des résonateurs optiques ou de leurs composants comprenant trois réflecteurs ou plus
• H01S 3/23 - Agencement de plusieurs lasers non prévu dans les groupes , p.ex. agencement en série de deux milieux actifs séparés

Abrégé

The present invention relates to night vision binoculars (10) comprising: a. a fixed lens assembly comprising a projection lens (26) having an output axis referred to as the projection axis (AP), b. two image-transporting lenses (14A, 14B), each lens (14A, 14B) having an output axis referred to as the vision axis (AV), the vision axes of the two lenses (14A, 14B) being parallel and separated by an adjustable distance referred to as the inter-pupillary distance, the vision axis (AV) of each lens (14A, 14B) also being parallel to the projection axis (AP) of the lens assembly (12) and having the same non-zero centre-to-centre distance (E) from the projection axis (AP) of the lens assembly (12), each lens (14A, 14B) being rotatably movable relative to the projection axis (AP) of the lens assembly (12) so as to adjust the inter-pupillary distance.

Classes IPC  ?

• G02B 7/12 - Réglage de la distance pupillaire de jumelles binoculaires
• G02B 13/16 - Objectifs optiques spécialement conçus pour les emplois spécifiés ci-dessous à utiliser en combinaison avec des convertisseurs ou des amplificateurs d'image
• G02B 23/08 - Périscopes
• G02B 23/12 - Télescopes ou lunettes d'approche, p.ex. jumelles; Périscopes; Instruments pour voir à l'intérieur de corps creux; Viseurs; Pointage optique ou appareils de visée avec des moyens pour renverser ou intensifier l'image
• G02B 25/00 - Oculaires; Loupes
• G02B 27/14 - Systèmes divisant ou combinant des faisceaux fonctionnant uniquement par réflexion

Abrégé

The invention relates to a system (10) for treating a target (Tar) by laser shock in a regime of confinement in a liquid (Liq), the system comprising a pulsed laser generating a beam (B) having a pulse duration of between 1 ns and 30 ns and a wavelength, a concentrating optical device (COD) having a focal length and configured to concentrate the beam (B) on the surface (St) of the target (Tar), the incident laser beam (B) on the concentrating device having a diameter (D), a tank (TK) filled with said liquid (Liq) having a refractive index n, a desired value of the diameter (D) of the beam on a surface (St) of the target being predetermined and named Dst, a thickness (e) of liquid (Liq) passed through by the beam (B) before reaching the surface (St) of the target (Tar) being chosen such that a laser intensity on the surface of the liquid (Isl) is less than or equal to a laser intensity on the surface of the target (Ist) divided by 2.

Classes IPC  ?

• B23K 26/00 - Travail par rayon laser, p.ex. soudage, découpage ou perçage 
• B23K 26/0622 - Mise en forme du faisceau laser, p.ex. à l’aide de masques ou de foyers multiples par commande directe du faisceau laser par impulsions de mise en forme
• B23K 26/122 - Travail par rayon laser, p.ex. soudage, découpage ou perçage  sous atmosphère particulière, p.ex. dans une enceinte dans un liquide, p.ex. sous l’eau
• B23K 26/356 - Travail par rayon laser, p.ex. soudage, découpage ou perçage  pour le traitement de surface par traitement par choc
• B23K 26/06 - Mise en forme du faisceau laser, p.ex. à l’aide de masques ou de foyers multiples
• B23K 26/12 - Travail par rayon laser, p.ex. soudage, découpage ou perçage  sous atmosphère particulière, p.ex. dans une enceinte

Abrégé

The present invention relates to a device (10) for amplifying a multi-wavelength laser beam, comprising: a. a first amplifying medium (M1) having a front face (20) and a reflecting rear face (22), which faces are tilted relative to each other by a first non-zero tilt, and b. a second amplifying medium (M2) having a front face (20) capable of receiving the beam (FR1) reflected by the rear face (22) and refracted by the front face (20) of the first amplifying medium (M1), and a reflecting rear face (22), which faces are tilted relative to each other by a second non-zero tilt, the first tilt, the second tilt and the orientation of the second amplifying medium (M2) being such that the sub-beams of each wavelength, which form the output beam (FR2) of the second amplifying medium (M2), are parallel to each other at the output of the second amplifying medium (M2).

Classes IPC  ?

• H01S 3/06 - Structure ou forme du milieu actif
• H01S 3/00 - Lasers, c. à d. dispositifs utilisant l'émission stimulée de rayonnement électromagnétique dans la gamme de l’infrarouge, du visible ou de l’ultraviolet
• H01S 3/23 - Agencement de plusieurs lasers non prévu dans les groupes , p.ex. agencement en série de deux milieux actifs séparés
• H01S 3/042 - Dispositions pour la gestion thermique pour des lasers à l'état solide

Abrégé

The invention relates to a winch comprising a rotary drum (12), a cable (14) which can be wound on the drum (12) in multiple layers (16, 18, 20), and a brake (26) for braking the rotation of the drum (12), the brake (26) being calibrated to permit the rotation of the drum (12) beyond a variable torque which decreases as the length of the cable (14) wound on the drum (12) increases.

Classes IPC  ?

• B66D 1/58 - Mécanismes de sécurité sensibles à un excès de charge
• B66D 1/14 - Transmission de la puissance entre sources de puissance et tambours ou cylindres
• F16D 43/02 - Embrayages automatiques à commande interne actionnés entièrement mécaniquement
• F16D 43/21 - Embrayages automatiques à commande interne actionnés entièrement mécaniquement commandés par le couple, p.ex. embrayages à déclenchement en cas de surcharge, embrayages à glissement avec dispositifs par lesquels le couple fait varier la pression d'embrayage avec organes à friction

Abrégé

The invention relates to an antenna feed (1) comprising a waveguide having a main part (10) in hollow straight cylinder form extending in a direction (X), a radiating element (2), comprising ridges (21) extending inwards and several treads (211, 212, 213) along the direction, the number, the heights and the thicknesses of the treads being configured to allow a variation of impedance of the radiating element, a polarizer (3) comprising two inputs (Ept Ep2) separated by an internal leaf (30) extending in the direction, and an output (Sp) corresponding to the input (Ec) of the radiating element, the internal leaf comprising several levels (301, 302, 303, 304) configured to transform a circularly polarized electromagnetic field into linear polarization, the polarizer comprising ridges (31, 32) extending inwards, the radiating element and the polarizer being made of a single piece, and disposed end-to- end in the direction, and a third portion (4) comprising a filter (40, 40'), the internal leaf (30, 30', 30") being prolonged in or part all of said third portion, the filter (40, 40') comprising a set (42) of frequency filtration posts (421, 422, 423, 424, 421', 422', 423') disposed inside the third portion and on one and the same surface of the internal leaf, the output (SF) of the filter corresponding to one of the two inputs (Ept Ep2) of the polarizer, said third portion further comprising third ridges (41) extending inwards and over all or part of the length of said third portion, said third ridges and the internal leaf being regularly distributed around the perimeter of said third portion; the radiating element, the polarizer and the filter being made of a single piece, preferably produced by an additive manufacturing technique, and the polarizer and the filter being disposed end-to-end in the longitudinal direction.

Classes IPC  ?

• H01Q 15/24 - Dispositifs polarisants; Filtres polarisants
• H01Q 5/20 - Dispositions pour faire fonctionner simultanément des antennes sur plusieurs gammes d'ondes, p.ex. dispositions bibandes ou multibandes  caractérisées par les gammes d'ondes exploitées
• H01Q 21/00 - Systèmes ou réseaux d'antennes

Abrégé

Disclosed is a device for receiving acoustic waves, comprising:-an acoustic antenna able to function as a condenser microphone distributed along a line (L) of the acoustic antenna comprising a conductor (A) and a dielectric (D), the line (L) being a transmission line or being configured to function as a transmission line when the dielectric makes direct physical contact with another conductor, -an exciter (EX) configured to apply, in a receiving step, an input voltage to a first longitudinal end (E1) of the line (L) so as to generate an input electromagnetic wave that moves toward a second longitudinal end (E2) of the line (L) and so as to generate an output electromagnetic wave that moves in the opposite direction to the input electromagnetic wave, the input voltage simultaneously comprising a set of sinusoidal voltages comprising a fundamental sinusoidal voltage and a set of harmonics of the fundamental sinusoidal voltage, the frequency of the fundamental sinusoidal voltage being defined so that stationary waves are established in the line (L) such that the output electromagnetic wave comprises directional acoustic-antenna channels.

Classes IPC  ?

• G01V 1/20 - Aménagements d'éléments récepteurs, p.ex. oscillogrammes géophoniques
• H04B 11/00 - Systèmes de transmission utilisant des ondes ultrasonores, sonores ou infrasonores

Abrégé

The present invention relates to a method for detecting masking of one or more satellites by an obstacle for a GNSS receiver on board a movable carrier, the method comprising the following steps: - receiving (110), for each one of M satellites, a code pseudo-distance measurement and a variation of carrier pseudo-distances; - computing (120) a definite position of the receiver and a computed position of each satellite (S,); - detecting (170) masking of at least one satellite on the basis of the following sub-steps: - computing (171), at a computation instant and for each satellite, a computed pseudo-distance and a pseudo-distance reconstructed at a previous time; - detecting (174) masking of at least one satellite by analysing a magnitude, called residue, computed by applying a least-squares algorithm.

Classes IPC  ?

• G01S 19/22 - Problèmes liés aux multitrajets

Abrégé

ABSTRACT A method for suppressing interference signals generated between satellite access stations of a multi-spot communication system is implemented by a distributed on- board and ground subsystem which comprises, on board a multi-spot communication payload, one or more opposition matrices, switches of an input switch assembly connected to the output of the reception sources of the reception antenna, and switches of an output selection ring connected upstream of the transmission sources of the transmission antenna, and, on the ground, a satellite access station GWt having a communication spectrum monitoring system CSM and a computer. The suppression method comprises a set of steps (304, 306, 308, 310, 312, 314, 316, 318) for testing the satellite accesses of the different stations GW, enabling each opposition matrix to be set selectively. The multi-spot space communication system incorporating the subsystem for suppressing the interference signals is described. Date Recue/Date Received 2021-09-21

Classes IPC  ?

• H04B 1/12 - Montages de neutralisation, d'équilibrage ou de compensation
• H04B 7/185 - Stations spatiales ou aériennes

Abrégé

The invention relates to a method for transmitting data in a radiofrequency (RF) communication system, comprising: - at least one piece of equipment (201, 601), referred to as the BBU, configured to generate l/Q samples from data to be sent, and to extract a payload from I/Q samples, - a plurality of pieces of equipment (203, 211, 213), referred to as RRH, configured to generate and transmit an RF analogue signal on the basis of I/Q samples, and to generate I/Q samples from a received RF signal, - digital communication links between BBU and RRH, each BBU being configured to transmit/receive data through one of the RRH, the I/Q samples exchange being organized in the form of sample packets marked by a sequence identifier, BBU and RRH implementing a mechanism for acknowledgement of the exchanged packets, and to change RRH depending on the state of the acknowledgements. The invention also relates to the communication system and equipment implementing the method.

Classes IPC  ?

• H04W 24/04 - Configurations pour maintenir l'état de fonctionnement
• H04W 28/04 - Détection d’erreurs
• H04W 28/12 - Régulation de flux utilisant une signalisation entre les éléments
• H04L 1/22 - Dispositions pour détecter ou empêcher les erreurs dans l'information reçue en utilisant un appareil en excédent pour accroître la fiabilité

Abrégé

The invention relates to a method for entry into a satellite communication network comprising at least one satellite, the communications of the satellite communication network being organized according to a beam-hopping mechanism in which hop frames define antenna beam configurations of the at least one satellite, wherein resources (101, 102, 103) of the hop frames are reserved for forming directional entry beams dedicated to entry or re-entry of user terminals into the satellite communication network, at least two of the directional entry beams having different directions of sight. The invention also relates to a satellite, a user terminal and a communication network configured to implement the described method.

Classes IPC  ?

• H04W 76/14 - Gestion de la connexion Établissement de la connexion Établissement de la connexion en mode direct
• H04W 16/28 - Structures des cellules utilisant l'orientation du faisceau
• H04B 7/185 - Stations spatiales ou aériennes

Abrégé

The invention relates to a control node for an array antenna (103) configured so as to apply an attenuation and a phase shift to a radiofrequency signal on the basis of a control signal, to a beamforming network, to an array antenna and to a satellite comprising the control node. It comprises - a quadratic divider (301) that delivers an in-phase signal and a quadrature signal on separate transmission channels, - a combiner (306) configured so as to sum the signals transmitted on two of the transm ission channels, each transmission channel comprising at least: - one attenuation cell (302, 303) activated on the basis of the value of a dedicated bit (310, 311) of the control signal, and - one phase shift cell (501, 502) configured so as to apply a fixed phase shift, activated on the basis of the result of combinational logic (503, 504) implemented on bits of the control signal (312, 313).

Classes IPC  ?

• H04B 7/0456 - Sélection de matrices de pré-codage ou de livres de codes, p.ex. utilisant des matrices pour pondérer des antennes
• H04B 1/04 - Circuits

Abrégé

The secondary radar comprising an antenna having a radiation pattern forming a sum channel, designated SUM, a radiation pattern forming a difference channel, designated DIFF, and a pattern forming a control channel, designated CONT, said targets are located by implementing the following steps: - detecting ADS-B squitters received via said CONT channel (102), via said SUM channel (103) and via said DIFF channel (104); - measuring at least the power of said squitters and their azimuth with respect to said radar (110); the location of a target transmitting ADS-B squitters being computed by exploiting at least the detection of one ADS-B squitter, in light of the latitudinal and longitudinal position of said radar and of the azimuthal measurement with respect to said radar, the position cell, designated the CPR cell, coded in said squitter being selected via said azimuthal measurement.

Classes IPC  ?

• G01S 13/74 - Systèmes utilisant la reradiation d'ondes radio, p.ex. du type radar secondaire; Systèmes analogues
• G01S 13/78 - Systèmes utilisant la reradiation d'ondes radio, p.ex. du type radar secondaire; Systèmes analogues dans lesquels des signaux de type pulsé sont transmis effectuant la discrimination entre différents types de cibles, p.ex. radar pour l'identification ami–ennemi

Abrégé

The invention relates to an electrical architecture of an aircraft comprising: - a plurality of primary generators (GEN1, GEN2) each associated with a propulsion engine of the aircraft, - a plurality of primary electrical networks (AC1, AC2, Essential AC) each associated with a primary generator in nominal operating mode, - a single-part secondary electrical network (RES), - an electrical energy accumulation device (BAT-HVDC) connected directly to the secondary network, - a first electrical energy converter (CP1) arranged between the secondary electrical network and a first of the primary electrical networks, allowing energy to be transferred from the first of the primary electrical networks to the secondary electrical network, the first electrical energy converter (CP1) being intended to supply electrical energy to the electrical energy accumulation device in nominal operating mode, - a second electrical energy converter (CP2) arranged between the secondary electrical network and a second of the primary electrical networks, allowing energy to be transferred from the secondary electrical network to the second of the primary electrical networks.

Classes IPC  ?

• H02J 4/00 - Circuits pour réseaux principaux ou de distribution, la nature alternative ou continue du courant n'étant pas précisée
• B64D 41/00 - Installations génératrices de puissance pour servitudes auxiliaires
• H02J 1/00 - Circuits pour réseaux principaux ou de distribution, à courant continu
• H02J 3/02 - Circuits pour réseaux principaux ou de distribution, à courant alternatif utilisant un réseau unique pour distribution simultanée de puissance à courant alternatif et à courant continu
• H02J 3/38 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs
• H02J 15/00 - Systèmes d'accumulation d'énergie électrique
• H02K 7/18 - Association structurelle de génératrices électriques à des moteurs mécaniques d'entraînement, p.ex. à des turbines
• H02M 7/00 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continu; Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif

Abrégé

Structural panel for a satellite comprising an external skin (1), an internal skin (2) and a core layer (3) arranged between the two, internal and external, skins (1, 2) and provided with a blind void (4) comprising at least one electrically insulated inserted busbar (5).

Classes IPC  ?

• H02G 5/00 - Installations de barres omnibus
• B64G 1/22 - Parties de véhicules spatiaux ou équipements spécialement destinés à être fixés dans ou sur ces véhicules
• F16S 1/00 - Feuilles, panneaux ou autres éléments de proportions semblables; Structures comportant des assemblages de ces éléments
• H02G 3/30 - Installations de câbles ou de lignes sur les murs, les sols ou les plafonds

Abrégé

Disclosed is a method for guiding the pilot of an aircraft for the alignment manoeuvre, comprising: determining, at a first instant, an occurrence close to the alignment manoeuvre and triggering the display of a first symbol (30) on the screen; updating the position of the first symbol on the horizon depending on the updated value of the heading of the aircraft; when the alignment manoeuvre needs to begin, moving a second symbol (31) on the screen from the position of the first symbol, the direction of the movement with respect to the horizon being determined depending on the direction of the crosswind with respect to the runway and the value of the movement being determined depending on the difference between the current dynamic sideslip of the aircraft and a current dynamic sideslip setpoint value calculated for the aircraft.

Classes IPC  ?

• B64D 43/00 - Aménagements ou adaptations des instruments
• B64D 45/04 - Aides à l'atterrissage; Dispositifs de sécurité pour éviter la prise de sol brutale
• B64D 45/08 - Aides à l'atterrissage; Dispositifs de sécurité pour éviter la prise de sol brutale optiques
• G01C 23/00 - Instruments combinés indiquant plus d’une valeur de navigation, p.ex. pour l’aviation; Dispositifs de mesure combinés pour mesurer plusieurs variables du mouvement, p.ex. la distance, la vitesse ou l’accélération

Abrégé

The invention relates to an orthomode transducer and to a satellite transmission chain comprising the orthomode transducer, for transmitting a first signal and a second signal in orthogonal propagation modes. The transducer comprises: - a primary waveguide (501, 601) with a square or rectangular cross section, - two guided access means (510, 520) having firstly a free end via which the first signal and the second signal are respectively injected or recovered, and secondly two arms connected to the primary waveguide. Each guided access means comprises a junction (512, 522, 602) configured so as to connect the free end to the two arms of the guided access means, the two arms (513, 514, 523, 524, 610, 611) of each guided access means being connected to the primary waveguide at two off-centred locations on one or more sides of the primary waveguide symmetrically about an axis of symmetry of the primary waveguide.

Classes IPC  ?

• H01P 5/18 - Dispositifs à accès conjugués, c. à d. dispositifs présentant au moins un accès découplé d'un autre accès consistant en deux guides couplés, p.ex. coupleurs directionnels
• H01P 1/161 - Sélecteurs de mode, p.ex. pour empêcher ou favoriser la propagation suivant un mode donné; Convertisseurs de mode fonctionnant selon deux modes orthogonaux indépendants, p.ex. transducteurs orthomodes
• H01Q 13/02 - Cornets de guide d'onde

Abrégé

Said radar system (10) comprises a transmitter (20) capable of outputting a transmission signal, and a receiver (30) capable of receiving a reception signal, the transmitter and receiver being coupled by a circulator (12) with an antenna (14). The transmitter includes a direct digital synthesis component (22), which can be configured in terms of amplitude, frequency, phase and/or delay, for generating the transmission signal. The system further comprises a cancellation channel (50) for cancelling an escaped transmission signal heading to the receiver, the cancellation channel reusing the direct digital synthesis component (22) to generate a cancellation signal, and comprising a coupler (56) which is arranged between the circulator (12) and the receiver (30) and is capable, on the basis of the cancellation signal, of emitting a replica of the cancellation signal to the receiver in order to cancel the escaped transmission signal.

Classes IPC  ?

• H04B 1/525 - Dispositions hybrides, c. à d. dispositions pour la transition d’une transmission bilatérale sur une voie à une transmission unidirectionnelle sur chacune des deux voies ou vice versa avec des moyens de réduction de la fuite du signal de l’émetteur vers le récepteur

Abrégé

The radar comprises an antenna having a radiation pattern forming a sum channel, SUM, a radiation pattern forming a difference channel, DIFF, and a pattern forming a control channel, CONT, a first transmission and reception chain (4) being associated with the SUM channel and a second transmission and reception chain (4') being associated with the CONT channel, a reception channel (4") being associated with the DIFF channel. Each of said transmission and reception chains (4, 4') is able to transmit and to receive simultaneously, the transmission chain (401) comprising a filtering operation (4A, 4B) that filters signals transmitted at 1090 MHz and the reception chain (402) comprising a filtering operation (4C, 4D) that filter signals transmitted at 1030 MHz, in such a way that said chains operate independently of one another;

Classes IPC  ?

• G01S 13/74 - Systèmes utilisant la reradiation d'ondes radio, p.ex. du type radar secondaire; Systèmes analogues
• G01S 13/78 - Systèmes utilisant la reradiation d'ondes radio, p.ex. du type radar secondaire; Systèmes analogues dans lesquels des signaux de type pulsé sont transmis effectuant la discrimination entre différents types de cibles, p.ex. radar pour l'identification ami–ennemi
• G08G 5/04 - Systèmes anticollision

Abrégé

The present invention relates to an open world communication device (16) for communicating with an avionics system (12) of an aircraft, comprising an application component (22-1, ..., 22-N). The device (16) further comprises an interfacing component (24) comprising a communication module (31) capable of intercepting each request sent by the application component (22-1, ..., 22-N) and a clone (33) of the avionics system (12) capable of testing each request intercepted by the communication module (31) in order to determine a status of this request between a compliant status and a non-compliant status. The communication module (31) is capable of transmitting to the avionics system (12) only the requests that have the compliant status.

Classes IPC  ?

• G06F 21/53 - Contrôle des usagers, programmes ou dispositifs de préservation de l’intégrité des plates-formes, p.ex. des processeurs, des micrologiciels ou des systèmes d’exploitation au stade de l’exécution du programme, p.ex. intégrité de la pile, débordement de tampon ou prévention d'effacement involontaire de données par exécution dans un environnement restreint, p.ex. "boîte à sable" ou machine virtuelle sécurisée
• H04W 12/08 - Sécurité d'accès
• H04W 4/48 - Services spécialement adaptés à des environnements, à des situations ou à des fins spécifiques pour les véhicules, p.ex. communication véhicule-piétons pour la communication dans le véhicule
• G08G 5/00 - Systèmes de commande du trafic aérien

Abrégé

The present invention relates to a method for assisting in the detection of elements in an environment, comprising: - acquiring a first wide-field image of an environment by a first sensor (14A) having a first field of vision and a first resolution, - generating a merged image from first small-field images of the environment acquired by a second sensor (14B) having a second field of vision strictly lower than the first field of vision and a second resolution that is finer than the first resolution, - in response to the detection of a relative difference in an element on a second wide-field image acquired by the first sensor (14A), compared to the first wide-field image, acquiring a second small-field image showing the difference, and - updating the merged image with the second small-field image.

Abrégé

The invention relates to a process for manufacturing a multi-material part by additive manufacturing, comprising the following steps:a) a step of providing a pre-treated metal powder comprising grains and an oxidized and porous layer on a surface of said grains;b) a selective laser powder-bed fusion step comprising implementation of steps i) and ii) as follows:i) a step of forming a layer from the pre-treated metal powder;ii) a step of melting by laser said layer, said melting step being carried out under a reactive atmosphere and comprising changing parameters of application of the laser so that at least a first region of said layer is converted so as to lower the electrical conductivity thereof, thus forming a dielectric, and so that at least a second region of said layer is densified without converting it,the at least a first region being formed when the parameters of application of the laser allow a first energy density to be applied to said first region and/or the laser beam to be kept for a first dwell time on said first region, the at least a second region being formed when the parameters of application of the laser allow a second energy density to be applied to said second region and/or the laser beam to be kept for a second dwell time on said second region, and the first energy density being higher than the second energy density and/or the first dwell time being longer than the second dwell time.The invention also relates to a part obtained using said process.

Classes IPC  ?

• B22F 1/00 - Poudres métalliques; Traitement des poudres métalliques, p.ex. en vue de faciliter leur mise en œuvre ou d'améliorer leurs propriétés
• B33Y 10/00 - Procédés de fabrication additive
• B33Y 70/00 - Matériaux spécialement adaptés à la fabrication additive
• B33Y 80/00 - Produits obtenus par fabrication additive
• B33Y 40/10 - Prétraitement
• B33Y 70/10 - Composites de différents types de matériaux, p.ex. mélanges de céramiques et de polymères ou mélanges de métaux et de biomatériaux
• B22F 10/28 - Fusion sur lit de poudre, p.ex. fusion sélective par laser [FSL] ou fusion par faisceau d’électrons [EBM]
• B22F 10/32 - Commande ou régulation des opérations de l’atmosphère, p.ex. de la composition ou de la pression dans une chambre de fabrication
• B22F 10/34 - Commande ou régulation des opérations des caractéristiques de la poudre, p.ex. densité, oxydation ou fluidité
• B22F 10/368 - Température ou gradient de température, p.ex. température du bassin de fusion
• B22F 10/38 - Commande ou régulation des opérations pour obtenir des caractéristiques spécifiques du produit, p.ex. le lissage de la surface, la densité, la porosité ou des structures creuses
• B22F 3/105 - Frittage seul en utilisant un courant électrique, un rayonnement laser ou un plasma
• B22F 3/11 - Fabrication de pièces ou d'objets poreux
• B22F 7/06 - Fabrication de couches composites, de pièces ou d'objets à base de poudres métalliques, par frittage avec ou sans compactage de pièces ou objets composés de parties différentes, p.ex. pour former des outils à embouts rapportés
• C22C 29/12 - Alliages à base de carbures, oxydes, borures, nitrures ou siliciures, p.ex. cermets, ou d'autres composés métalliques, p.ex. oxynitrures, sulfures à base d'oxydes
• C22C 29/16 - Alliages à base de carbures, oxydes, borures, nitrures ou siliciures, p.ex. cermets, ou d'autres composés métalliques, p.ex. oxynitrures, sulfures à base de nitrures

Abrégé

A computer-implemented method and system for providing adaptive training cursus to a trainee is disclosed. In the context of flight training for a given flight, the method allows providing training cursus recommendations by identifying every relevant phase (maneuvers and/or procedures) in a flight mission performed by a trainee; assessing the ease in flight of the trainee during each of these specific phases using an ease in flight algorithm model using psychophysiological parameters; and based on the conjunction of the ease in flight and predefined skills required to perform each phase, providing training cursus recommendations to target specifically the skills which are not yet mastered by the trainee.

Classes IPC  ?

• G09B 5/06 - Matériel à but éducatif à commande électrique avec présentation à la fois visuelle et sonore du sujet à étudier
• G09B 9/08 - Simulateurs pour l'enseignement ou l'entraînement pour l'enseignement de la conduite des véhicules ou autres moyens de transport pour l'enseignement du pilotage des aéronefs, p.ex. bancs d'entraînement au pilotage sans visibilité

Abrégé

The invention relates to a display comprising a plurality of electronic chips (10) with ?LEDs and an active matrix (40) for controlling the chips, the active matrix being mounted on a transparent slide (2), each chip comprising a plurality of electroluminescent diodes (13), each chip comprising a substrate (11) comprising an electrode (12) which is common to the ?LEDs and, on the upper portion thereof, the ?LEDs and their electrical control contacts (14). The display comprises: one or more power supply planes (20) arranged on the upper face of a support plate (1); the plurality of electronic chips, first conductive elements (30) providing the electrical connections between the common electrodes of each chip and the power supply planes; the transparent slide (2) bearing the active matrix, second conductive elements (31) providing the electrical connections between the electrical contacts of the electronic chips and the electrical contacts (41) for controlling the active matrix.

Classes IPC  ?

• H01L 25/075 - Ensembles consistant en une pluralité de dispositifs à semi-conducteurs ou d'autres dispositifs à l'état solide les dispositifs étant tous d'un type prévu dans le même sous-groupe des groupes , ou dans une seule sous-classe de , , p.ex. ensembles de diodes redresseuses les dispositifs n'ayant pas de conteneurs séparés les dispositifs étant d'un type prévu dans le groupe
• H01L 33/62 - Dispositions pour conduire le courant électrique vers le corps semi-conducteur ou depuis celui-ci, p.ex. grille de connexion, fil de connexion ou billes de soudure

Abrégé

20 ABREGE Un dispositif de conversion analogique-numérique comprenant une borne d'entrée pour recevoir un signal d'entrée analogique et une borne de sortie pour délivrer un signal de sortie numérique. Le dispositif comprend également un premier module de conversion analogique- numérique avec registre à approximations successives, dit premier module SAR ADC, connecté à la borne d'entrée et un premier module de rétroaction associé au premier module SAR ADC et comprenant un premier filtre pour filtrer le premier signal résiduel avant de le réinjecter à l'entrée du premier module SAR ADC. Le dispositif comprend également un deuxième module de conversion analogique-numérique avec registre à approximations successives, dit deuxième module SAR ADC, connecté en cascade au premier module SAR ADC et un deuxième module de rétroaction associé au deuxième module SAR ADC. Le dispositif comprend également un module de multiplexage connecté aux premier et deuxième modules SAR ADC, pour délivrer le signal de sortie numérique. Date Reçue/Date Received 2020-1 2-2 1

Classes IPC  ?

• H03M 1/38 - Valeur analogique comparée à des valeurs de référence uniquement séquentiellement, p.ex. du type à approximations successives

Abrégé

The invention relates to a color display device comprising a matrix of light sources, each light source comprising a single micro-light-emitting diode, the light sources being of three different colors, each color pixel (14, 24, 34, 44, 54) of the matrix comprising three sources emitting in the three different colors. In the device according to the invention, the matrix is formed by a group of elementary components (15, 25, 35, 45, 55) of identical shape, each elementary component comprising at least two light-emitting diodes emitting in one of the three spectral bands - the shape of the light-emitting diodes being either a triangle, or a quadrilateral, or a pentagon - the elementary components being assembled in threes such that their respective diodes touch one another by one of their sides, the group formed by the three sources associated with the three diodes forming a color pixel.

Classes IPC  ?

• H01L 25/075 - Ensembles consistant en une pluralité de dispositifs à semi-conducteurs ou d'autres dispositifs à l'état solide les dispositifs étant tous d'un type prévu dans le même sous-groupe des groupes , ou dans une seule sous-classe de , , p.ex. ensembles de diodes redresseuses les dispositifs n'ayant pas de conteneurs séparés les dispositifs étant d'un type prévu dans le groupe
• H01L 33/50 - DISPOSITIFS À SEMI-CONDUCTEURS NON COUVERTS PAR LA CLASSE - Détails caractérisés par les éléments du boîtier des corps semi-conducteurs Éléments de conversion de la longueur d'onde
• H01L 27/15 - Dispositifs consistant en une pluralité de composants semi-conducteurs ou d'autres composants à l'état solide formés dans ou sur un substrat commun comprenant des composants semi-conducteurs avec au moins une barrière de potentiel ou une barrière de surface, spécialement adaptés pour l'émission de lumière
• H01L 33/20 - DISPOSITIFS À SEMI-CONDUCTEURS NON COUVERTS PAR LA CLASSE - Détails caractérisés par les corps semi-conducteurs ayant une forme particulière, p.ex. substrat incurvé ou tronqué

Abrégé

ABSTRACT The invention relates to an optical observation instrument intended to be installed on- board a satellite or an aircraft, said instrument comprising an optical system forming, of an overflown terrain, an image (l) on a photodetection matrix array (M) composed of pixels (Pu) that are organized into rows (Li) and into groups of columns (Cj). Each row of pixels corresponds to various points of the image, each point of a row corresponds to a given spectral band, and each group of columns corresponds to a different spectral band, the movement of the overflown terrain being perpendicular to the rows, the observation instrument comprising a device for acquiring data output from the pixels during a defined sampling period, the acquiring device operating in an acquisition mode defined by the common read-out of identical matrix-array blocks of pixels belonging to adjacent rows and adjacent columns, the numbers of rows and columns of the blocks being chosen depending on an expected spatial resolution and an expected spectral resolution, the observation instrument comprising at least two acquisition modes, a first acquisition mode in which the rows are read out in blocks of pixels and a second acquisition mode in which the columns are read out in blocks of pixels. Date Recue/Date Received 2020-12-15

Classes IPC  ?

• H04N 25/441 - Extraction de données de pixels provenant d'un capteur d'images en agissant sur les circuits de balayage, p.ex. en modifiant le nombre de pixels ayant été échantillonnés ou à échantillonner en lisant partiellement une matrice de capteurs SSIS en lisant des pixels contigus dans des rangées ou des colonnes sélectionnées de la matrice, p. ex. par balayage entrelacé
• H04N 25/11 - Agencement de matrices de filtres colorés [CFA]; Mosaïques de filtres
• H04N 25/46 - Extraction de données de pixels provenant d'un capteur d'images en agissant sur les circuits de balayage, p.ex. en modifiant le nombre de pixels ayant été échantillonnés ou à échantillonner en combinant ou en groupant les pixels
• G01C 11/00 - Photogrammétrie ou vidéogrammétrie, p.ex. stéréogrammétrie; Levers photographiques
• G02B 27/02 - Appareils pour regarder ou pour lire

Abrégé

A device (100) for managing air traffic, in an airspace comprising a reference aircraft and at least one other aircraft, the device (100) receiving a three-dimensional representation of the airspace at a time when an air conflict is detected between the reference aircraft and said at least one other aircraft, the device being characterized in that it comprises:-an airspace-encoding unit (101) configured to determine a reduced-dimension representation of the airspace by applying a recurrent autoencoder to the three-dimensional representation of the airspace at the air-conflict detection time;-a decision-assisting unit (103) configured to determine a conflict-resolution action to be implemented by the reference aircraft, the decision-assisting unit (103) implementing a deep-reinforcement-learning algorithm to determine the action on the basis of the reduced-dimension representation of the airspace, of information relating to the reference aircraft and/or the at least one other aircraft, and of a geometry corresponding to the air conflict.

Classes IPC  ?

• G08G 5/00 - Systèmes de commande du trafic aérien
• G08G 5/04 - Systèmes anticollision

Abrégé

ABSTRACT The invention relates to a method for detecting conflicts in the ll/Sl identification code of radars nearby a secondary mode-S radar, characterized in that it comprises at least: - a first step (31) in which said radar detects unsolicited unsynchronized replies, i.e. fruits, in a region of extended radar coverage; - a second step (32) in which said radar detects a conflict in II/SI code by analyzing geographic regions of radar coverage common to said radar and to at least one nearby radar, a conflict being detected if said radar: - detects, in said region of extended coverage, the presence of fruits that have as source said nearby radar; - observes the absence of fruits caused by said nearby radar in that region of radar coverage of said radar which does not overlap with the region of radar coverage of said nearby radar; the region of overlap between the radar coverage of said radar and the radar coverage of said nearby radar forming a region of conflict in ll/Sl code. Date Recue/Date Received 2020-11-23

Classes IPC  ?

• G01S 13/78 - Systèmes utilisant la reradiation d'ondes radio, p.ex. du type radar secondaire; Systèmes analogues dans lesquels des signaux de type pulsé sont transmis effectuant la discrimination entre différents types de cibles, p.ex. radar pour l'identification ami–ennemi

Abrégé

The invention relates to a method for processing coherent MIMO radar processing DDMA waveforms and comprising NTx transmitters and NRx receivers, comprising the steps of - a) generating waveforms on at most NTx transmitters, the waveforms, modulo the pulse repetition frequency Fr, being identical from one transmitter to the next, to within a phase ramp specific to each transmit path; - b) generating, for at least one receiver, a Range-Doppler representation of the echoes of the transmitted waveforms, where, for each receivre, the echoes of a transmitter over a plurality of range cells occupy at least one frequency cell in the Doppler spectrum, called signal band, each signal band being specific to one of the transmitters, the placement of the signal bands in the Doppler spectrum being determined according to the phase ramp applied to each transmitter, the waveforms being generated so as to leave a portion of the Doppler spectrum between two signal bands unoccupied; - c) identifying the transmitter corresponding to each signal band, on the basis of the Range-Doppler representation of the echoes of the transmitted waveforms. The method according to the invention is particularly suitable for the millimetre band (W band), for automotive radar applications or applications of radar on board aeroplanes or drones, for the detection of fixed or moving target relative to the carrier.

Classes IPC  ?

• G01S 7/292 - Récepteurs avec extraction de signaux d'échos recherchés
• G01S 7/288 - Récepteurs cohérents

Abrégé

The invention relates to a method of performing communication between a satellite (SAT) and a ground segment (GS), the satellite (SAT) comprising a platform (PF) and a payload (PL), the ground segment comprising at least one satellite control center (SCC) configured to generate or process data associated with the satellite platform, said satellite control center (SCC) directly communicating with the satellite platform (PF) on a dedicated channel, referred to as platform channel, characterized in that the method comprises a step of directly communicating, between the mission control center (MCC) and an on board processing unit (PRU) which is configured to manage at least a part of the payload of the satellite, telecommand or telemetry data of the part of the payload of the satellite, on another dedicated channel, referred to as signalling channel, said signalling channel and said platform channel being distinct.

Classes IPC  ?

• H04B 7/185 - Stations spatiales ou aériennes
• H04B 17/336 - Rapport signal/interférence ou rapport porteuse/interférence

Abrégé

The invention relates to an underwater device (12) intended to be towed by a surface ship (10) and handling system (20) intended to be installed on the surface ship (10) and used for storing and deploying the underwater device (12), the underwater device (12) comprising a tow cable (18), a flexible elongate body (16) and a towed body (14) situated between the flexible elongate body (16) and the tow cable (18) during use of the underwater device (12), the handling system (20) comprising a first winch (24) that is used for storing and deploying the tow cable (18) and the towed body (14), a second winch (26) that is used for storing and deploying the flexible elongate body (16). The underwater device (12) comprises an arm (30) articulated to the towed body (14) and to the flexible elongate body (16), in a deployed first position, the arm (30) being aligned with the flexible elongate body (16) allowing the first winch (24) to tow the entire underwater device (12), in a second position, the arm (30) being unaligned with respect to the flexible elongate body (16) allowing the flexible elongate body (16) to be aligned with the second winch (26).

Classes IPC  ?

• B63B 21/66 - Apparaux de remorquage ou de poussée Équipements spécialement adaptés au remorquage sous l'eau des objets ou des navires, p.ex. carénages hydrodynamiques pour câbles de remorquage
• B63G 8/42 - Navires submersibles remorqués
• G01V 1/38 - Séismologie; Prospection ou détection sismique ou acoustique spécialement adaptées aux zones recouvertes d'eau

Abrégé

The invention relates to a deployable device (10) comprising a supporting structure (11), a mandrel (12) able to move in rotation with respect to the supporting structure (11) about a first axis Z, a membrane (13) able to pass from a rolled-up configuration rolled up around the mandrel about the first axis Z to a deployed configuration deployed along a second axis X substantially perpendicular to the first axis Z. According to the invention, it comprises two fittings (14) secured to the mandrel (12) at their centre, arranged one on either side of the membrane (13) and comprising first stubs (15) on their periphery (16), a casing (17) extending between the two fittings (14), the casing (17) comprising second stubs (18) of a shape complementing the shape of the first stubs (15), the casing (17) being able to pass from a rolled-up configuration at least partially enveloping the membrane (13) in the rolled-up configuration to a deployed configuration at least partially superposed on the membrane (13) in the deployed configuration.

Classes IPC  ?

• B64G 1/22 - Parties de véhicules spatiaux ou équipements spécialement destinés à être fixés dans ou sur ces véhicules
• H02S 20/00 - Structures de support pour modules PV
• B21C 37/06 - Fabrication de tôles, barres, fils, tubes ou profilés métalliques ou de produits semi-finis similaires, non prévue ailleurs; Fabrication de tubes de forme particulière des tubes ou tuyaux métalliques; Procédés combinés pour fabriquer des tubes, p.ex. pour fabriquer des tubes à parois multiples
• B31C 5/00 - Fabrication de tubes ou de tuyaux sans utiliser de mandrin
• B64G 1/66 - Aménagements ou adaptations d'appareils ou d'instruments, non prévus ailleurs
• B65H 37/00 - Appareils délivrant des articles ou des bandes, comportant des dispositifs pour exécuter des opérations auxiliaires particulières
• B65H 75/38 - Noyaux, gabarits, supports ou pièces de tenue pour matériau bobiné, enroulé ou plié, p.ex. tourets, broches, bobines, tubes à cannette, boîtes spécialement adaptés ou montés pour stocker, dérouler de façon répétée et stocker à nouveau des longueurs de matériau prévues pour des buts particuliers, p.ex. tuyaux souples à poste fixe, câbles de force impliquant l'utilisation d'un noyau ou d'un gabarit intérieur formant support pour le paquet de matériau stocké
• F16F 1/10 - Ressorts spiraux dont les enroulements constituent sensiblement une surface plane
• F16S 3/02 - Eléments allongés, p.ex. éléments profilés; Leurs assemblages; Armatures ou grilles formés de plusieurs éléments allongés ajustés côte à côte

Abrégé

The present invention relates to a method for assisting in the detection of elements in an environment, the method comprising the steps of: - simultaneously acquiring a first image, in a first spectral band, and a second image in a second spectral band, of the same portion of the environment, - detecting and classifying elements imaged in the first image using a classifier which is trained as a function of a first database of images, - detecting and classifying elements imaged in the second image using a classifier which is trained as a function of a second database of images, - comparing the classifications obtained and - when the classification of at least one of the elements detected is different or when an element has been detected only for one of the two images, storing the first and the second images and the corresponding classifications.

Abrégé

The present invention relates to a method for assisting in the detection of elements in an environment, the method comprising, at each point in time, the steps of: - acquiring a first image of the environment having a first resolution and a first field of view, - detecting elements captured in the first image, - classifying each detected element to obtain an initial classification of the element, - acquiring at least a second image of at least one of the detected elements having a second resolution and a second field of view, the second resolution being greater than the first resolution, the second field of view being more restricted than the first field of view, and - re-assessing, for each detected element captured in the second image, the classification of the element according to the second image to obtain a re-assessed classification of the element.

Abrégé

Un procédé de détection est mis en uvre après une phase d'acquisition d'un signal de navigation pendant une phase de convergence et comprend au moins l'une des étapes suivantes : - détermination (110) d'une pluralité de corrélations ponctuelles voie pilote et d'une pluralité de corrélations ponctuelles voie de données, et détermination d'une première valeur en fonction de ces corrélations ponctuelles ; - détermination (120) d'une pluralité de corrélations partielles voie pilote, et détermination d'une deuxième valeur en fonction de ces corrélations partielles ; - détermination (130) d'une pluralité de corrélations décalées voie pilote, et détermination d'une troisième valeur en fonction de ces corrélations décalées voie pilote. La phase de convergence comprend en outre l'étape de détermination (140) d'une fausse synchronisation lorsque au moins l'une desdites dépasse un seuil prédéterminé.

Classes IPC  ?

• G01S 19/24 - Acquisition ou poursuite des signaux émis par le système

Abrégé

The invention relates to a method for determining operational constraints for a first constellation of non-geostationary satellites (CONS_I) transmitting in the direction of a ground station (SV) with respect to a second constellation of non-geostationary satellites (CONS_V) linked to the station, the constraints comprising a maximum transmission power of the satellites of the first constellation, the method comprising: - determining triplets of limiting values (?, ?, I/N) of two angles (?, ?) and of an interference-to-noise ratio (I/N), the angles (?, ?) defining a position of a satellite (NGSO_I) of the first constellation with respect to the station and to a satellite (NGSO_V) of the second constellation and the interference-to-noise ratio being the ratio between the interference (I) transmitted by the first constellation over a link between the station and the satellite of the second constellation and the noise (N) of the link, the triplets being determined so that a distribution of signal-to-noise and signal-to-interference ratios (R) summed over a time interval is higher than a reference distribution (REF); - determining at least the maximum transmission power of at least one satellite of the first constellation on the basis of the triplets.

Classes IPC  ?

• H04B 7/195 - Stations non synchrones

Abrégé

The invention relates to a method for determining operational constraints for a first constellation of non-geostationary satellites (CONS_l) transmitting towards a terrestrial station (SV) with respect to a second constellation of non-geostationary satellites (CONS_V) linked with the station, the constraints comprising a maximum transmission power of the satellites of the first constellation, the method comprising: - determining triplets of limit values (.theta., .phi., l/N) of two angles (.theta., .phi.) and of an interference-to- noise ratio (l/N), the angles (.theta., .phi.) defining a position of a satellite (NGSO_l) of the first constellation relative to the station and to a satellite (NGSO_V) of the second constellation and the interference-to-noise ratio being the ratio between interferences (l) transmitted by the first constellation on a link between the station and the satellite of the second constellation and the noise (N) of the link, the determination of the triplets being performed so that a distribution of signal-to-noise and interference ratios (R) aggregated over a time interval is greater than a reference distribution (REF); - determining at least the maximum transmission power of at least one satellite of the first constellation from the triplets.

Classes IPC  ?

• H04W 52/24 - Commande de puissance d'émission [TPC Transmission power control] le TPC étant effectué selon des paramètres spécifiques utilisant le rapport signal sur parasite [SIR Signal to Interference Ratio] ou d'autres paramètres de trajet sans fil
• H04B 17/336 - Rapport signal/interférence ou rapport porteuse/interférence
• B64G 1/10 - Satellites artificiels; Systèmes de tels satellites; Véhicules interplanétaires
• H04B 7/195 - Stations non synchrones

Abrégé

A method for determining a maximum transmission power (Pmax, PR, PO) of a non- geostationary satellite (NGSO1, NGSO2) in the direction of a ground station (GSO_SOL), comprising the steps of: - determining the minimum value of a topocentric angle (.alpha.NGSO1, .alpha.NGSO2), formed between the non-geostationary satellite, the ground station and a point of the geostationary arc (ARC_GSO); - comparing, in terms of absolute value, the minimum value of the topocentric angle with at least two threshold values (.alpha.r, .alpha.o), such that: if it is less than the first threshold (.alpha.r), defining the maximum transmission power at a first value (PR), if it is between the first threshold and the second threshold (.alpha.o), defining the maximum transmission power at a second value (PO), greater than the first value, or if it is greater than the second threshold, defining the maximum power at a third value (Pmax), greater than the second value; the maximum transmission power values and the thresholds being determined so as to minimize the deviation between a distribution of the power levels received by the station (GSO_SOL) and added over a time interval and a reference distribution (REF), greater than the distribution of the power levels.

Classes IPC  ?

• H04W 52/10 - Commande de puissance en boucle ouverte
• H04B 7/195 - Stations non synchrones

Abrégé

The radar comprises an antenna having a radiating pattern forming a sum channel, called SUM, a radiating pattern forming a difference channel called DIFF and a pattern forming a control channel called CONT, means for generating at least interrogation messages on the SUM channel and ISLS interrogation messages on the CONT channel, means for transmitting these messages via the SUM channel and via the CONT channel respectively, and means for receiving and processing signals received via the SUM, DIFF and CONT channels, configured for detecting the replies of targets on the signals received via the SUM and DIFF channels and carrying out monopulse processing and RSLS processing on these replies. The transmission means are configured in such a way that, for each target, the width of the beam for transmitting interrogations and receiving mode S selective replies is controlled on the basis of the movement window of said target and the position of the axis of said antenna in said window, in order to provide detection of said target by reducing the number of selective interrogations by a selective sub- interrogation of said target while ensuring its precise positioning in azimuth: - by pre-locating said target at the edge of the main reception lobe of said antenna by deviation measurement between the signals received on the DIFF and SUM channels; - by selectively re-interrogating said pre-located target in mode S by calculation of the roll-call signal nearest to the centre of said main lobe to ensure precision in azimuth, without any other unnecessary supplementary interrogation.

Classes IPC  ?

• G01S 13/74 - Systèmes utilisant la reradiation d'ondes radio, p.ex. du type radar secondaire; Systèmes analogues
• G01S 13/78 - Systèmes utilisant la reradiation d'ondes radio, p.ex. du type radar secondaire; Systèmes analogues dans lesquels des signaux de type pulsé sont transmis effectuant la discrimination entre différents types de cibles, p.ex. radar pour l'identification ami–ennemi
• G01S 13/91 - Radar ou systèmes analogues, spécialement adaptés pour des applications spécifiques pour la commande du trafic

Abrégé

The present invention relates to a device for detecting optical pulses, the device comprising a sensor (20) having a plurality of pixels, each pixel comprising: - a receiver configured to receive optical pulses and to generate an electrical signal; - an event detection unit comprising a frequency filter having an adjustable cutoff frequency defining a bandwidth for the event detection unit, the adjustable cutoff frequency being such that the upper limit of the bandwidth is higher than or equal to 1 megahertz, the detection unit being configured to detect the variations in the electrical signal generated by the receiver only when the frequency in the frequency domain of said variations is within the bandwidth of the event detection unit; and - a time-measuring unit configured to date each variation of the electrical signal detected by the event detection unit.

Classes IPC  ?

• G01J 1/42 - Photométrie, p.ex. posemètres photographiques en utilisant des détecteurs électriques de radiations

Abrégé

The present invention relates to a device for classifying (14) a light source (11), comprising: - a sensor (20) suitable for receiving a light flux emitted by a light source (11), the sensor (20) comprising a plurality of pixels grouped into sets, each set comprising a first pixel and a second pixel adjacent to the first pixel, each first pixel being suitable for generating a first signal relating to a first light flux portion in a first spectral band received by the first pixel, each second pixel being suitable for generating a second signal relating to a second light flux portion in a second spectral band received by the second pixel, - a processor (24) configured to compare the first and the second signal and to classify the emitted light source (11) according to the result of the comparison.

Classes IPC  ?

• G01S 7/481 - Caractéristiques de structure, p.ex. agencements d'éléments optiques
• G01S 7/495 - Contre-mesures ou anti-contre-mesures
• G01V 8/10 - Détection, p.ex. en utilisant des barrières de lumière

Abrégé

The present invention relates to a device and a method for analysing the behaviour of a subject working in an operating environment during an assignment. The device comprises: - means for synchronised acquisition of a plurality of raw data relating to the subject, the operating environment and the assignment; - means for on-the-fly cross-processing of the raw data acquired; and - means for real-time generation of compiled data from the cross-processing, providing instantaneous information on the state and behaviour of the subject; the device is characterised in that all or some of the means can be used to activate different operating modes for analysing and monitoring the behaviour of the subject.

Classes IPC  ?

• G09B 9/08 - Simulateurs pour l'enseignement ou l'entraînement pour l'enseignement de la conduite des véhicules ou autres moyens de transport pour l'enseignement du pilotage des aéronefs, p.ex. bancs d'entraînement au pilotage sans visibilité
• G09B 9/16 - Simulation ou indication par un instrument ou une alarme des conditions ambiantes ou des paramètres de l'aéronef
• G09B 19/00 - Enseignement non couvert par d'autres groupes principaux de la présente sous-classe

Abrégé

The invention relates to an attenuator (401) configured to attenuate and phase- shift a radiofrequency signal according to a control signal, comprising a plurality of first attenuation cells (A1, A N-1), configured to attenuate said radiofrequency signal by a predetermined value and activated according to a particular bit of the control signal (310), a means (403, 404) for implementing a combinatorial logic on the bits of the control signal that are used to control the first attenuation cells, and at least one second attenuation cell (B1, B M) configured to attenuate said radiofrequency signal by a predetermined value and activated according to a particular output of the means for implementing a combinatorial logic. The invention also relates to a control node for an array antenna comprising such an attenuator, and an array antenna comprising an array of such control node and a satellite.

Classes IPC  ?

• H01Q 23/00 - Antennes comportant des circuits ou des éléments de circuit actifs qui leur sont intégrés ou liés
• H01Q 21/00 - Systèmes ou réseaux d'antennes
• H03K 19/177 - Circuits logiques, c. à d. ayant au moins deux entrées agissant sur une sortie; Circuits d'inversion utilisant des éléments spécifiés utilisant des circuits logiques élémentaires comme composants disposés sous forme matricielle
• H04B 7/185 - Stations spatiales ou aériennes

Abrégé

A method for testing a software component implemented in a host system on the basis of one or more test campaigns, a test campaign comprising computer test cases and being associated with input test data. The method comprises the steps of: - executing (203) the computer test cases of each test campaign for an operating time of the software component, which provides output test data associated with each test campaign; - determining (205) a reference operating model and a data partition on the basis of the input and output test data associated with each test campaign; - running (207) the software component using input production run data, which provides output production run data; - determining an operating characteristic of the software component (209) on the basis of the reference operating models according to a comparison between the input and output production run data and the data from the data partitions associated with the one or more test campaigns.

Classes IPC  ?

• G06F 11/36 - Prévention d'erreurs en effectuant des tests ou par débogage de logiciel

Abrégé

The invention relates to an assembly comprising a first waveguide (1) and a second waveguide (2) extending longitudinally along a first axis (Z), each having an end (3, 4), each comprising a first annular groove (6), the two ends (3, 4) being contiguous along the first axis (Z), and an assembly device for assembling the first waveguide and the second waveguide, wherein the assembly device comprises: - a sleeve surrounding the ends of the first and second waveguides and having an inner wall comprising two first annular grooves facing the first annular grooves of the first and second waveguides, - two reversibly deformable waveguides, each being positioned in a first annular groove of the sleeve and positioned in a first annular groove of the first and second waveguides, so as to block the first and second waveguides in terms of translation along the first axis.

Classes IPC  ?

• H01P 5/02 - Dispositifs de couplage du type guide d'ondes à coefficient de couplage invariable
• H04B 7/185 - Stations spatiales ou aériennes

Abrégé

The invention relates to a telecommunications payload for multibeam satellite coverage, comprising at least one antenna and a plurality of sources (SRC) connected to the antenna in order to deliver a beam corresponding to a spot on the Earth's surface, the satellite comprising a plurality of high-power amplifiers (HPA) configured so as to supply the sources (SRC), characterized in that the payload also comprises a plurality of ring-shaped routing devices (DRA), each ring-shaped routing device (DRA) comprising Ne input ports (E), where Ne >= 2, each input port (E) being connected to one of the high-power amplifiers (HPA), and also comprising Ns output ports (S), each output port (S) being connected firstly to a source (SRC), and being able to be connected secondly to at most one input port (E), and change alternately from a connection state to a disconnection state, each ring-shaped routing device (DRA) being configured such that, at a time t, Ne output ports (S) out of the Ns output ports (S) are able to be supplied depending on the desired coverage. The invention makes it possible to achieve coverage and capacity distribution flexibility.

Classes IPC  ?

• H04B 7/0408 - Systèmes de diversité; Systèmes à plusieurs antennes, c. à d. émission ou réception utilisant plusieurs antennes utilisant plusieurs antennes indépendantes espacées utilisant plusieurs faisceaux, c. à d. diversité de faisceaux
• H04B 7/185 - Stations spatiales ou aériennes
• H04J 3/00 - Systèmes multiplex à division de temps
• H04Q 3/52 - Circuits pour sélection indirecte commandée par circuits communs, p.ex. contrôleur d'enregistreur, marqueur utilisant des dispositifs statiques dans les étages de commutation, p.ex. des dispositifs de commutation électronique

Abrégé

The invention relates to a device for locking an object that can slide along a cable (14), the device comprising the cable (14) and a clamp (70), the cable (14) passing through the clamp (70) and extending along an axis (28), the clamp (70) comprising: a fixed part (112) connected to the object, a ring (72) comprising an elastic material having a fluid behavior, the ring (72) comprising a central recess (74) traversed by the cable (14), an actuator (92) configured to compress the ring (72) between two forms, wherein in a first form, referred to as the open form, the cable (14) can freely circulate in the central recess (74), and in a second form, referred to as the closed form, the cable (14) is compressed by the ring (72).

Classes IPC  ?

• F16G 11/02 - Moyens pour attacher les câbles ou les cordes l'un à l'autre ou à d'autres objets; Chapeaux ou manchons à fixer sur les câbles ou les cordes avec parties déformables pour saisir le câble ou les câbles; Moyens d'attache engageant un manchon ou élément similaire fixé au câble
• B25B 5/14 - Presses ou serre-joints pour tenir des pièces de forme particulière
• B64D 1/00 - Largage, éjection ou réception, en cours de vol, d'objets, de liquides ou similaires
• B66D 1/48 - Dispositifs de commande automatiques
• B66D 1/60 - Mécanismes d'enroulement des cordes, câbles ou chaînes; Cabestans adaptés à des usages particuliers
• F16G 11/10 - Agrafes à fermeture rapide; Pinces serrant uniquement dans un sens
• G01S 7/521 - Caractéristiques de structure
• G10K 11/00 - Procédés ou dispositifs pour transmettre, conduire ou diriger le son en général; Procédés ou dispositifs de protection contre le bruit ou les autres ondes acoustiques ou pour amortir ceux-ci, en général

Abrégé

The invention relates to a low-drag dipping sonar comprising an antenna (20; 50; 80) equipped with acoustic transmitters (22) and receivers (24). The dipping sonar further comprises a motorized winch (26) comprising a reel (32), and an actuator (30) configured to rotate the reel (32) and a cable (14) wound on the reel (32), in that the winch (26) is placed in the antenna (20), and in that the cable (14) allows the antenna (20) to be hooked to a carrier (10, 16) at its one free end of the cable (14).

Classes IPC  ?

• G01S 7/521 - Caractéristiques de structure
• G10K 11/00 - Procédés ou dispositifs pour transmettre, conduire ou diriger le son en général; Procédés ou dispositifs de protection contre le bruit ou les autres ondes acoustiques ou pour amortir ceux-ci, en général

Abrégé

The invention relates to a device for locking an object suspended from a cable (14) passing through a clamp (70) and extending along a substantially vertical axis (28), the clamp (70) comprising: a fixed part (54), at least two moving jaws (72), a first actuator (75) and a second actuator, the two jaws (72) coming into contact with the cable (14) to immobilize the cable (14) by clamping in a closed position and moving away from the cable (14) in an open position, the fixed part (54) having as many inclined surfaces (74) as there are jaws (72), each of the jaws (72) being configured to slide along one of the inclined surfaces (74) so as to pass from the open position to the closed position, the first actuator (75) being configured to move the jaws (72) upward, make them slide along their respective inclined surface (74) and allow the clamp (70) to close, the second actuator being configured to pull downward on the cable (14) with respect to the fixed part (54) and allow the clamp (70) to open.

Classes IPC  ?

• F16G 11/10 - Agrafes à fermeture rapide; Pinces serrant uniquement dans un sens
• B64D 1/22 - Enlèvement d'objets à la surface du sol
• B66D 1/28 - Autres parties constitutives de structure
• G01S 7/521 - Caractéristiques de structure
• G10K 11/00 - Procédés ou dispositifs pour transmettre, conduire ou diriger le son en général; Procédés ou dispositifs de protection contre le bruit ou les autres ondes acoustiques ou pour amortir ceux-ci, en général

Abrégé

The invention relates to a method for determining the point location of a vehicle stopped on one storage track among a set of storage tracks, using virtual beacons. It determines (208, 210) and compares (212) the likelihood of a plurality of hypotheses as to the stopped location of the vehicle, corresponding to a first set of NBe predefined virtual beacons Be(i), i varying from 1 to NBe, the respective positions of which are known in an amount of one virtual beacon per storage track, by correlating (208) the GNSS geo-positioning signals received at various synchronization reset times of a second set by the GNSS receiver located on board the vehicle with predicted GNSS geo-positioning signals of replicas expected for said various positions of the virtual beacons of the first set at the various times. The detected holding position of the vehicle is the position that corresponds to the maximum likelihood.

Classes IPC  ?

• G01S 19/50 - Détermination de position la solution de position étant astreinte à se situer sur une courbe ou une surface donnée, p.ex. pour les locomotives sur les voies ferrées

Abrégé

A sonar device intended to be towed by a surface ship and having a tow cable and a towed device is provided. The towed body is elongate along a longitudinal axis, incorporates a linear acoustic antenna having electroacoustic transducers, and exhibits an orientation in which the longitudinal axis extends along a vertical axis. The towed body is connected to the tow cable by first and second hangers. A first end of each of the first and second hangers is connected to the tow cable, a second end of the first hanger is attached to the towed body at a first fixing point situated near a first longitudinal end of the towed body, and a second end of the second hanger is attached to the towed body at a second fixing point secured to the first fixing point and situated near the second longitudinal end.

Classes IPC  ?

• B63B 21/66 - Apparaux de remorquage ou de poussée Équipements spécialement adaptés au remorquage sous l'eau des objets ou des navires, p.ex. carénages hydrodynamiques pour câbles de remorquage
• G01V 1/20 - Aménagements d'éléments récepteurs, p.ex. oscillogrammes géophoniques
• G01V 1/38 - Séismologie; Prospection ou détection sismique ou acoustique spécialement adaptées aux zones recouvertes d'eau

Abrégé

Handling device (10) comprising a winch (11) comprising a frame (12), intended to be attached to a structure of the surface vessel (B) and a first drum capable of turning relative to the frame (12) about a first rotation axis and an assembly comprising at least one second drum (14) which surrounds the first drum and is capable of turning relative to the frame (12) about a second rotation axis substantially parallel to the first rotation axis, the winch (11) being capable of being in a decoupled state in which the first drum and the second drum are rotationally decoupled about the first rotation axis and the second rotation axis so as to allow a traction cable to be wound around the first drum during a first winding step in which the first drum is rotated about the first axis, the second drum (14) being capable of being in an open state in which the second drum (14) has a receiving opening (15) that a towed body (4) is capable of passing through in order to enter the interior of the space that surrounds the first drum and that is surrounded by the second drum (14), the winch (11) being capable of being in a coupled state in which the first drum and the second drum (14) are rotationally coupled about the second rotation axis so as to allow a flexible elongate body to be wound around the second rotation axis during a second winding step in which the second drum (14) is rotated about the second axis.

Classes IPC  ?

• B63B 21/66 - Apparaux de remorquage ou de poussée Équipements spécialement adaptés au remorquage sous l'eau des objets ou des navires, p.ex. carénages hydrodynamiques pour câbles de remorquage
• B63B 27/08 - Aménagement des équipements de bord pour l'embarquement ou le débarquement des cargaisons ou des passagers des treuils
• B63B 27/36 - Aménagement des équipements de bord pour l'embarquement ou le débarquement des cargaisons ou des passagers pour les cargaisons flottantes
• B65H 75/42 - Noyaux, gabarits, supports ou pièces de tenue pour matériau bobiné, enroulé ou plié, p.ex. tourets, broches, bobines, tubes à cannette, boîtes spécialement adaptés ou montés pour stocker, dérouler de façon répétée et stocker à nouveau des longueurs de matériau prévues pour des buts particuliers, p.ex. tuyaux souples à poste fixe, câbles de force impliquant l'utilisation d'un noyau ou d'un gabarit intérieur formant support pour le paquet de matériau stocké mobile ou transportable fixé à des outils ou machines mobiles ou en faisant partie
• B65H 75/44 - Noyaux, gabarits, supports ou pièces de tenue pour matériau bobiné, enroulé ou plié, p.ex. tourets, broches, bobines, tubes à cannette, boîtes spécialement adaptés ou montés pour stocker, dérouler de façon répétée et stocker à nouveau des longueurs de matériau prévues pour des buts particuliers, p.ex. tuyaux souples à poste fixe, câbles de force impliquant l'utilisation d'un noyau ou d'un gabarit intérieur formant support pour le paquet de matériau stocké - Détails de structure
• B66D 1/30 - Tambours ou cylindres pour cordes, câbles ou chaînes
• B66D 1/38 - Guidage ou autre procédé pour assurer un enroulement régulier des cordes, câbles ou chaînes au moyen de guides mobiles relativement au tambour ou au cylindre
• G01V 1/38 - Séismologie; Prospection ou détection sismique ou acoustique spécialement adaptées aux zones recouvertes d'eau

Abrégé

A satellite multibeam (F1, F2, F3, F4) telecommunication system comprising at least one satellite provided with at least one high-power amplifier (2), a digital processor (PN), and means (4) for implementing go channel beam hopping, without return channel beam hopping, the digital processor (PN) being configured to digitize the return channel beams and aggregate them, the bandwidth of the return channel beams (F1, F2, F3, F4) being proportional to the temporal allocation on the go channel beams (F1, F2, F3, F4).

Classes IPC  ?

• H04B 7/185 - Stations spatiales ou aériennes
• H04B 7/0408 - Systèmes de diversité; Systèmes à plusieurs antennes, c. à d. émission ou réception utilisant plusieurs antennes utilisant plusieurs antennes indépendantes espacées utilisant plusieurs faisceaux, c. à d. diversité de faisceaux
• H04B 1/04 - Circuits

Abrégé

The invention relates to an inductive filtering device comprising a plurality of grouped electrical conductors and at least two toric magnetic cores, each formed around a central void, the two magnetic cores having different magnetic lengths, the electrical conductor being wound together around both magnetic cores by passing through the central voids of both magnetic cores.

Classes IPC  ?

• H03H 7/09 - Filtres comportant une inductance mutuelle
• H01F 5/00 - Bobines d'induction
• H01F 7/02 - Aimants permanents
• H01F 27/28 - Bobines; Enroulements; Connexions conductrices

Abrégé

A polarizing screen comprises an arrangement of at least one, electrically conductive, polarizing cell (112), which at least one cell is frequency- and polarization- selective, for transforming the polarization of the electric component E of the transverse electromagnetic (TEM) wave, received with linear polarization, into an electromagnetic wave with circular polarization. The four lateral walls (124, 125, 126, 127) of each section of waveguide (120) forming a polarizing cell (112) are each open over their entire length due to a median continuous slot (134, 135, 136, 137), parallel to the direction of propagation of the incident electromagnetic wave, so as to form four angled electrically conductive plates. Each polarizing cell (112) includes electrically conductive interconnection rods which interconnect the lateral walls and the four angled plates so that they are partially or completely rigidly connected and which form one or more electrical discontinuities (152), which are arranged at the ends of or inside the section of waveguide forming the polarizing cell and form one or more inductive or capacitive loads, or one or more (LC) resonators equivalent to an inductor and a capacitor connected in parallel or in series. The longitudinally open slots of the lateral walls and the elementary electrical discontinuities of each polarizing cell include geometric shapes and dimensions which provide total transmission of the incident wave, which is associated with a phase anisotropy of +90° or -90° according to the components E V and E H.

Classes IPC  ?

• H01P 1/17 - Dispositifs auxiliaires pour faire tourner le plan de polarisation pour produire une rotation continue du plan de polarisation, p.ex. une polarisation circulaire

Abrégé

System for estimating a pointing error of an antenna (ANT) of a satellite, the satellite comprising a payload (CU) comprising a multichannel transmitter or receiver comprising a multichannel antenna (ANT), one analogue processing chain per channel and a set of digital integrated circuits (PN), the system comprising an estimation device (EST), implemented aboard the satellite or in a ground station, for estimating a pointing error of the antenna, the device for estimating a pointing error being configured to: - acquire, for at least two channels of the transmitter or of the receiver, at least two test signals, each test signal having been transmitted or received by the antenna along a different direction (.theta. A, .theta. B), - for at least one pair of acquired test signals, determine, for each test signal, a relative complex gain between the test signal received or transmitted respectively on two distinct channels, - determine a comparative measurement between the two test signals from either the ratio between the two relative complex gains and/or the difference between the phases of the two relative complex gains, - determine a pointing error (d.theta.) of the antenna on the basis of the comparative measurement, of the expected directions of transmission or of reception of the test signals (.theta. A, .theta. B) and of a model of the gain of the antenna for each channel and in a plurality of directions.

Classes IPC  ?

• H04B 17/12 - Surveillance; Tests d’émetteurs pour l’étalonnage d’antennes d’émission, p.ex. de l’amplitude ou de la phase
• H04B 17/309 - Mesure ou estimation des paramètres de qualité d’un canal
• G01S 3/74 - Systèmes à voies multiples spécialement adaptés à la radiogoniométrie, c. à d. ayant un système d'antenne unique pouvant indiquer simultanément les directions de différents signaux
• H04B 7/185 - Stations spatiales ou aériennes

Abrégé

Un procédé d'estimation des valeurs d'harmonisation d'un magnétomètre (2) installé dans un engin mobile, le magnétomètre étant associé à son repère de référence XM, YM, ZM, le procédé, mis en uvre, par un dispositif électronique, comprenant l'acquisition de valeurs de champ magnétique mesurées par le magnétomètre et détermination de l'harmonisation horizontale (hx, hy) par: estimation d'un premier angle égal à l'angle entre XM et le grand axe d'une ellipse, définie dans le plan comprenant les deux axes XM, ZM, par les valeurs de champ acquises ; détermination de hy comme égale au premier angle estimé, estimation d'un deuxième angle égal à l'angle entre YM et le grand axe d'une ellipse définie, dans le plan comprenant les deux axes YM, ZM, par les valeurs de vecteurs de champ acquises ; et détermination de - hx comme égale au deuxième angle estimé.

Classes IPC  ?

• G01C 21/08 - Navigation; Instruments de navigation non prévus dans les groupes par des moyens terrestres impliquant l'utilisation du champ magnétique terrestre
• G01C 25/00 - Fabrication, étalonnage, nettoyage ou réparation des instruments ou des dispositifs mentionnés dans les autres groupes de la présente sous-classe

Abrégé

The invention relates to a method and a function for checking the integrity of the processing of a radionavigation signal emitted by a satellite, said signal being received by a receiver comprising reception means and processing means, said processing means comprising a linear anti-interference filter, said integrity checking method comprising at least a first phase of detection of a risk of false lock- on comprising the following steps: - a step of recovery of a nominal theoretical self-correlation function of said received signal not processed by the linear anti-interference filter; - a step of determination of a mean theoretical self-correlation function of said signal received and processed by the linear anti-interference filter over a defined integration period; - a step of determination of the number of local maxima of the modulus or of the modulus squared of the mean theoretical self-correlation function, a risk of false lock-on being detected if said number of local maxima is greater than or equal to two.

Classes IPC  ?

• G01S 19/24 - Acquisition ou poursuite des signaux émis par le système

Abrégé

Optical element (10), which is transparent at an operating wavelength ?, having a super-hydrophobic nanostructured surface (4) and having an anti-reflective property, said surface comprising an array of pads, characterised in that the pads have a nanometric width, a height h, an aspect ratio less than 1/2 in that the pitch p of the array is such that p < h, and in that the element comprises an upper layer (5) with a thickness less than h/5 which continuously and compliantly covers the nanostructured surface, the upper layer being obtained by an annealing step at a temperature between 500°C and 1200°C and being made of a material with a density greater than the density of the material of the nanostructured surface.

Classes IPC  ?

• G02B 1/118 - Revêtements antiréfléchissants ayant des structures de surface de longueur d’onde sous-optique conçues pour améliorer la transmission, p.ex. structures du type œil de mite
• G02B 1/14 - Revêtements protecteurs, p.ex. revêtements durs
• G02B 1/18 - Revêtements pour garder des surfaces optiques propres, p.ex. films hydrophobes ou photocatalytiques

Abrégé

Système de calibration d'une charge utile d'un satellite, la charge utile (CU) comprenant un émetteur ou un récepteur multi-voies comprenant une antenne (ANT), une chaine de traitement analogique (RF1,RF2) par voie et un ensemble de circuits intégrés numériques (PN), le système comprenant un dispositif de calibration (DCAL) configuré pour : .cndot. Acquérir pour toutes les voies de l'émetteur ou du récepteur, un signal de calibration numérisé, .cndot. Fixer une voie de référence et, pour chacune des autres voies, - déterminer un gain complexe relatif entre la voie et la voie de référence, pour une pluralité de fréquences du signal de calibration, - corriger le gain complexe relatif d'un gain relatif de l'antenne (ANT) du satellite entre la voie et la voie de référence, - estimer un retard relatif, - estimer un écart de phase relatif pour l'ensemble de fréquences, - fournir une correction de gain, d'écart de phase et de retard relatifs de la voie par rapport à la voie de référence pour un ensemble de fréquences.

Classes IPC  ?

• H04B 17/00 - Surveillance; Tests
• H04B 17/11 - Surveillance; Tests d’émetteurs pour l’étalonnage
• H04B 17/21 - Surveillance; Tests de récepteurs pour la correction des mesures
• B64G 5/00 - Equipement au sol pour les véhicules, p.ex. tours de lancement, installations de ravitaillement en combustible

Abrégé

The invention relates to a device and method for shot analysis. The present invention relates to a device and a method for shot analysis. The method comprises steps of detecting the firing of a shot; recording image data in the line of sight before the shot, immediately following the shot, and after the shot; analysing the resolution of the shot by processing the data recorded immediately following the shot; and temporal analysis of the shot by processing the data recorded immediately following the shot, the data recorded before the shot, the data recorded after the shot and the results of the shot resolution analysis.

Classes IPC  ?

• G01S 17/89 - Systèmes lidar, spécialement adaptés pour des applications spécifiques pour la cartographie ou l'imagerie
• F41G 3/26 - Appareils d'instruction ou d'entraînement pour le pointage
• F41J 5/08 - Systèmes à infrarouges indicateurs de coups au but
• G01S 17/02 - Systèmes utilisant la réflexion d'ondes électromagnétiques autres que les ondes radio

Abrégé

Telecommunications satellite payload comprising a signal receiver (ANT) for receiving signals transmitted on an uplink, an analogue-to-digital converter (ADC) for converting the received signals into digital samples, a modem (MOD), an inter-satellite communication device (ISL) and a traffic management unit (GT) configured, on the basis of resource planning information (PL), so as to transmit the digital samples either to the modem (MOD) in order to be demodulated or to the inter-satellite communication device (ISL) in order to be transmitted to a recipient satellite responsible for demodulating the digital samples.

Classes IPC  ?

• H04B 7/185 - Stations spatiales ou aériennes
• H04B 10/112 - Transmission dans la ligne de visée sur une distance étendue
• H04B 1/40 - Circuits

Abrégé

The invention relates to a method for determining a protection radius of a vision-based navigation system comprising: - at least one image sensor able to produce at least one first image at a first instant and one second image at a second instant; and - a processing unit coupled to each image sensor and able to implement a processing method able to determine at least one value of motion between the first instant and the second instant on the basis of the first image, of the second image and of a plurality of image data determined on the at least first and second images; the said method comprising the following steps: - a first step of determining at least one nominal value of uncertainty of the at least one motion value obtained by the processing method for a set comprising the plurality of image data determined; - a second step of determining i-th sub-values of uncertainty of the at least one motion value determined by the processing method for an i-th subset defined by removing an i-th part of the image data determined; - a third step of determining an i-th protection radius for the i-th subset on the basis of the i-th uncertainty sub-values and of the at least one nominal uncertainty value; the second and third steps being repeated for each i-th subset, i varying between 1 and a defined value M; - a fourth step of determining a protection radius on the basis of the M i- th protection radii determined.

Classes IPC  ?

• G01C 21/00 - Navigation; Instruments de navigation non prévus dans les groupes

Abrégé

Docking device comprising a docking station capable of being connected to a carrying vessel by means of a cable, the docking station comprising a guide device which comprises a set (E) of arms (51) which are connected to the body and each comprise a distal end (ED) and a proximal end (EP), the set (E) of arms (51) being capable of being in a deployed configuration in which it defines a space flaring towards the rear so as to enable the underwater vehicle to be guided to the stop, the distal end (ED) of each arm (51) being located behind the proximal end (EP) of the arm (51) in the deployed configuration, the set (E) of arms being capable of being in a collapsed configuration in which a distal end (ED) of each arm (51) of the set (E) of arms is closer to the longitudinal axis (x) than in the deployed configuration and in which the distal end (ED) is located in front of the position occupied by the distal end (ED) in the deployed configuration, such that a length, along the axis x, of a space defined by the set (E) of arms (51) behind the stop is smaller in the collapsed configuration than in the deployed configuration.

Classes IPC  ?

• B63B 27/36 - Aménagement des équipements de bord pour l'embarquement ou le débarquement des cargaisons ou des passagers pour les cargaisons flottantes
• B63C 7/20 - Appareillage à attaque directe des navires ou objets employant des grappins