ABSTRACT Node, mesh communication network and routing reconfiguration method The invention relates to a module (30) equipping a node (Ni) of a mesh communication network (10), identified on said network by a logic number and including an input and/or output port (51 to 54), which is characterized by: - co...

The invention relates to a towing device intended to equip the deck of a ship (10) and comprising a winch (16) a cable (14) and a fairlead (20) the cable (14) circulating in the fairlead (20) under the action of the winch (16) the fairlead (20) comprising a frame (21) and at least first and second sectors the sector...

The invention relates to a data processing .method for a .. multistatic radar system comprising a plurality of transmitters and receivers, each receiver being associated with one or more transmitters so as to form one or more bistatic bases According to the invention, the method involves producing and sustaining mul...

ABSTRACT Image compression method comprising the following steps applied to at least one image (I): • Decorrelating (101) the image (I) by applying thereto a mathematical transform so as to obtain a set of coefficients, • Decomposing (102) the image (I) into blocks and, for each block of the image (I), • Quan...

Sonar system intended for imaging the seabed comprising at least one transmit antenna (10) intended to transmit an acoustic beam covering a useful angular sector (4) delimited by a first direction (d1) and a second direction (d2) the distance between the antenna (10) and the seabed (5) being bigger in the first dire...

The invention relates to a directional multiple-polarisation wide-band antenna network operating in a selected frequency band, characterised in that it comprises at least the following members: N elementary sensors of the convoluted spiral type complementary to a plurality of yams arranged into a structure for obtai...

The invention relates to an accelerometer device for determining the acceleration of an object to which the accelerometer device is mechanically connected, along 3 axes X, Y and Z of a main orthonormal reference system comprising three axes X, Y and Z. Said object is subjected to a surrounding pressure and comprises...

The general field of the invention is that of methods of displaying an "attitude director indicator" in a head viewing system for aircraft comprising: - a head support (C) bearing a viewing device (V); - a detection of posture (DDP); - sensors for detecting the various parameters defining the attitude of the sai...

The compact thermoelastic actuator (15) includes at least two identical force pieces (10a, 10b, 10c, 1Od) and a securing piece (11), the securing piece having a coefficient of thermal expansion less than the coefficient of thermal expansion of the force pieces. The force pieces (10a, 10b, 10c, l0d) are mounted head-...

The subject of the present invention is a device for permanently maintaining the altitude of a payload the altitude-maintenance energy source of which is practically permanent and extracted from the medium. This device is not very costly to produce and to launch and requires minimum servicing while being able to car...

ijThe invention relates to a computerized system and method for controlling access to a service and/or to a place of the type comprising access management devices (1 to 5) making it possible to deliver to a user an access permission or to permit or validate access by a user to this service and/or to this place. It f...

The invention relates to a device for assisting in the detection of a desired object on the ground said object having a first predetermined height. Said device includes: a display device configured to display an image (12) generated from echos measured by a wave reflection imaging device the image (12) representing ...

The filter of longitudinal axis Z comprises: at least one resonant cavity (11) delimited by walls (10, 14, 15) made of a material that has a non-zero expansion coefficient, a dielectric resonator (16) mounted in the cavity (11) transversally to the axis Z, a mechanical device for compensating at leas...

The subject of the present invention relates notably to a method for determining the optimum position for identical sensors of dimension d-D (1≤d≤3) intended to perform goniometry measurements within a communication network minimizing the ambiguities, by taking into account parameters from a specification such as th...

The invention relates to a method of measuring distance of a target by means of a pulse emitter and of a matrix detector comprising spatial mini-detectors coupled to capacitors whose duration of integration is controlled by a polarization of the mini-detectors. It comprises the following steps: A) Determination of ...

The electronically scanned antenna being composed of radiating elements each forming one active channel in which the signals of said channels are on the one hand grouped together to form error measurement signals each error measurement signal forming an error measurement channel and are on the other hand grouped tog...

The invention concerns an aircraft nose (100 ) fitted with an ejectable cap (10) in which the following are located:  a homing head (20) provided with an IR detector (22) a dome (21) and an optical system (24) capable of forming an image of a scene on the IR detector placed in the focal plane (23) of the optical sys...

The invention relates to the general field of head mounted display systems for aircraft comprising a head support a display device means for detecting the posture of the head support means for detecting the current heading (C1) of an aircraft and means for the graphical generation of said heading. The system of the ...

The invention relates to a radioelectric device for transmitting and receiving radio waves including a radio wave generator generating radio waves that are frequency-modulated by a predetermined modulation signal and a transceiver antenna system, having a transmission-reception angle with an associated antenna apert...

The antenna with shared feeds for generating multiple beams, comprising a plurality of identical individual feeds spaced apart by a constant pitch (P), is characterized in that: the individual feeds (1 to 10) are associated in identical subnetworks (1 to 7, 4 to 10) around a central individual feed (7, 5), each sub...

The device according to the invention mainly comprises a test chamber (11) defining a cavity (13) forming an anechoic chamber as well as least one test probe (31) placed inside the cavity (13). The cavity comprises an opening against which the radiating surface (14) of the antenna (19) is positioned. The device also...

Method for measuring certain parameters of the impulse response of a propagation channel involving emitters and reflectors that are fixed or mobile, so as to detect and determine the parameters regarding the position and kinematics of these emitters and reflectors, or to auto-locate the reception system implementing...

The invention concerns a system for extraction and analysis of significant radioelectric signals. It includes an overall number N of tracks. Each track Vi includes a receptor connected to a digital acquisition device of analog signals generating a digital signal SNi. Each track Vi includes a bank of polyphased filte...

The present invention concerns a method for deinterleaving radar signals the method comprising:  the reception of electromagnetic signals by a receiver (12) and the extraction of the pulses from the received signals and  the formation of pulse trains grouping together at least three pulses spaced apart by a same pul...

The invention relates to a device for towing very long tubular objects. Said device includes: - pulling means (12, 13, 14) capable of driving the object (10), via friction, in a towing direction; - grasping means (110, 112, 113) capable of exerting force on the pulling means (12) such as to continuously keep the pul...

Device for launching and recovering a sonar comprising a linear reception antenna (13) and a volume transmission coil incorporated into a volume body referred to as a fish (12) said sonar being towed by a surface vessel (10) by means of a tow line (11) comprising a towing cable (14) from which the tow fish is suspen...

System for determining a direction of arrival System for determining a direction of arrival of a radio signal comprising at least three antennas, means configured for determining at least two phase shifts, associated with various antenna pairs respectively, said phase shifts being the difference between a phase ...

Digital frequency converter and method of processing in a digital frequency converter Frequency converter comprising a block for frequency transposition of samples (11 11) a filtering block (12 12) the filtered samples y(n) satisfying y(n) =c(0).x(n) + c(1).x(n 1) + c(2).x(n 2)+...+c(p 1).x(n p+1) + c(p).x(n p) + c(...

The present invention relates to the general field of radar tracking applied to multi-static radar systems. It consists of a method for coherently merging the individual tracks generated from the various bistatic bases that make up the system so as to generate and maintain global tracks so that an object detected by...

The subject of the present invention relates notably to a method for determining the optimal position of identical sensors of dimension d-D(1≤d≤3) intended to perform goniometry measurements within a communications array minimizing the ambiguities, by taking account of parameters of a specification comprising single...

The invention relates to a towing device intended to be fitted to the deck of a ship. The device comprises a winch, a cable (14) and a fairlead (20), the cable (14) passing through the fairlead (20) under the action of the winch. According to the invention, the fairlead (20) com prises at least first and second ...

The general field of the invention is that of the optical checking of optical instruments of telescope type. The instrument (100) comprises an optical objective (110), a photo-detection housing (120) arranged at the focus of said optical objective and at least one light source (121) arranged in the vicinity of said ...

A device for winding and unwinding a cable comprising a winch (1) comprising a frame an electric motor for rotating a drum relative to the frame, locking/unlocking means comprising a first induction coil and configured in such a way as to immobilise the drum relative to the frame when the first coil is not powered ,...

The invention relates to a method and a system for verifying the precision performance of a satellite navigation system that can certify compliance with a level of precision whatever the observation conditions, notably as regards satellite geometry. The invention is a performance verification tool for the design,...

The invention relates to an acoustic module (1) for an acoustic antenna for receiving waves under water taking the form of a neoprene based rubber panel (100) incorporating a plurality of tubular longitudinal ducts (2) extending along the length (L) of the rubber panel (100) and being spaced over the width (l) of th...

The invention relates to a method of displaying an image on a screen (24) of a headset (16) of a system (12) for aiding navigation the system (12) for aiding navigation comprising the headset (16), and a computer (18). The method comprises the successive steps of measuring the orientation of the headset (16) of the ...

The invention relates to a radio altimetry system that can be fixed to an aircraft and provide the distance of that aircraft from a surface, capable of operating in a dual radio altimetry installation including two such radio altimetry systems, said radio altimetry system including a frequency-modulated radio wave g...

The invention relates to a radiofrequency signal receiver (1) to be provided on a satellite, including: a control device (100) at the frequency of the receiver , which enables the reception frequency of the receiver to be controlled on the basis of a frequency command (104); a band- pass filter- type filtering assem...

The present invention relates to a means for mutually aligning the scales of a rope streamlined by means of scales articulated to rotate about its axis, the alignment being necessary to enable such a rope to be wound onto the drum of a winch. It mainly consists of a device presenting a bevelled front face and compr...

The present invention relates to a method of measuring the bearing angle of arrival θ of HF band electromagnetic signals received by a crossed loop antenna or an Adcock antenna array, characterized in that it comprises at least the following steps: o measuring the phase difference ∆φ between the signals acquired...

The invention relates to an optical space observation system comprising a primary mirror, a secondary mirror (4), a supporting base (1) containing the primary mirror, on which a mechanical structure (2) bearing a support (3) of the secondary mirror (4) is positioned, and an optical measurement means, said mechanical...

Method and system for locating one or more transmitters Ei in the potential presence of obstacles Rp in a network comprising at least one first receiving station A and one second receiving station B asynchronous with A characterized in that it comprises the identification of a reference transmitter E0 through an est...

The invention concerns bodies towed behind a vessel. Said objects are commonly referred to as fish. According to the invention the fish (12) comprises a housing configured to move in the water in a main horizontal direction (25) at least one appendage (27; 29) configured to generate downward hydrodynamic lift (30) w...

The present invention relates to a compact stereoscopic imaging device, but whose compactness does not diminish its stereoscopic quality. The device of the invention is characterized in that the optical device comprises a telescope with single head having two optical pathways ensuring stereoscopy, these two pathway...

A constant-amplitude and continuous-phase modulation method for modulating digital data and for demodulating said modulated signal, said data taking the form of symbols a(n) that can take a number M of states at least equal to 2, characterized in that it comprises, in transmission, a voltage-controlled oscillator (V...

A radial power combination system comprising: ■ a radial divider (10) comprising ports in the form of rectangular waveguides (16) on the periphery; ■ a radial combiner (10') superposed on the radial divider, comprising ports in the form of rectangular waveguides (16') on the periphery; ■ a-first, input transition...

The present invention relates to a method for transmitting data between a responder and an interrogator communicating in a secure mode in which the interrogator (101) transmits an interrogation signal (253) comprising an authentication sequence (253b) to the responder (102) which replies to the interrogator (101) wi...

The subject of the invention is a mirror for optical imaging comprising a reflecting device (M1) having a reflective face (1). Said reflecting device incorporates a light-emitting device (2) of which one emitting end is situated in said reflective face in a zone (z1) which is not or not very reflective. Application...

The present invention relates to chromatography matrices ligands based on one or more domains of immunoglobulin-binding proteins such as, Staphylococcus aureus Protein A (SPA), as well as methods of using the same.

Method and system for locating an emitter E transmitting a signal toward a receiver A comprising N radio frequency channels (N≥1), the characteristics of said signal being unknown to the receiver and said signal being reflected off P reflectors Bi (P≥1) of known positions, characterized in that it comprises at least...

The present invention relates to a method for jointly determining the azimuth angle 0 and the elevation angle A of the wave vectors of P waves in a system comprising an array (1001) of sensors, a number of waves out of the P waves being propagated along coherent or substantially coherent paths between a source and s...

The invention relates to a frequency-tunable microwave bandpass filter that comprises, altogether, at least the following elements: a wave guide having a rectangular cross-section and including a stationary first conductive portion I and a movable second conductive portion II. Said first portion includes a plurality...

i iThe invention concerns a method for measuring the frequency modulation f(t) of a laser source that comprises the following steps:  modulating the laser source over a period T by means of a modulation control  during a same period T carrying out several measurements of a light beat intensity between two arms of an...

The present invention relates to the field of sonar imaging and detection and classification of objects by means of a synthetic antenna sonar. The synthetic antenna sonar (1) is intended to move along a first axis (X1). The sonar (1) comprises an emitting device (2) configured to emit on each recurrence at least one...

System and method for determining a distribution of a position error of a receiver of localization signals, said signals being sent by at least one satellite, the system including the receiver, one position of which is known as first position and is affected by an error, known as first error, having a distribution,...

The overall field of the invention is that of systems for detecting the posture of a moving object in space. The device according to the invention comprises: a fixed electrooptical device (Ot) comprising a point emission source (S), a telecentric lens comprising a projection . lens (L), a reception lens ( L") an...

The invention relates to a method for detecting and characterising a moving target (104) on a radar image. The invention also relates to SAR GMTI type radar devices associated with image processing means. The method comprises a first phase for detecting the moving target in radar images followed by a second phase fo...

The invention relates to a method for assisting with the search for an élément (E) having a pre-defined hue in an environment, the method comprising the supply of at least one colour image, the or each image comprising pixels, said method being characterised in that it comprises the sélection, in the or each image...

The invention relates to a method of indexing a video taken with a mobile camera, wherein the video is in the form of a collection of frames each comprising a date and shooting - information, wherein the method comprises for each frame: a step (100) for selecting the date of the frame; a step (105) for extracting a...

An amplification device combining a number of amplifier modules operating in the microwave range, characterized in that it comprises: ▪ a power divider, having an input and at least two outputs, dividing an input microwave signal 1 into a number of microwave signals 25; ▪ connecting waveguides 4 used t...

The subject of the present invention is a system for positioning an object in a constrained zone comprising:  a set of pseudolites distributed in said constrained zone and each exhibiting a spreading code corresponding to the spreading code of a satellite belonging to a constellation of satellites of a satellite nav...

The invention relates to a network making it possible to calculate and provide ionospheric corrections to the users of a satellite navigation system, characterized in that the network also comprises: an aeronautical segment (200) comprising an aeronautical user segment composed of a plurality of aircraft (2) each o...

A radio frequency channel amplification modute for communication satellite, comprising an input configured to convey an input radio frequency signal (IN), an output configured to restore a pre-amplified output radio frequency signal (OUT) intended to power a travelling wave tube amplifier (13) that can be equipp...

The microwave channel multiplexing device comprises several elementary filters (11) connected in parallel with a common output port (15) by way of a transverse waveguide (16), each filter (11) comprising a lower end (31) fixed to a support (12) common to all the filters and an upper end (33) away from the support (1...

The invention relates to a system for tine generation of pieces of technical documentation suitable for reading on an electronic-ink device comprising digital data storage means (4), characterized in that it furthermore comprises: • means (22) for the creation of technical publications, the said technical publicati...

The invention relates to a method for securing an aircraft (10) flying over the ground, the method comprising the following steps: - acquiring a first height of the aircraft (10) relative to the ground at a first moment, - acquiring a second height of the aircraft (10) relative to the ground at a second moment, -...

The present invention relates to an antennal system able to cover a geographical zone with two grids of spots with nested meshes, and shifted one with respect to the other. The multi-beam antennal system covers a geographical zone decomposed into a plurality of spots, the system comprising antennas each comprising a...

The method comprises the following steps: - acquiring (612) the complete data frame from an HTTP request; - selecting (614) the data frame acquired if the binary structure thereof meets a plurality of conditions comprising at least one condition corresponding to the IP layer (1040, 1050) of the frame  at least one...

Method for selectively, dynamically and adaptively jamming the third-party radio communications that are external to a radio communication network to be protected, which optimizes the effectiveness of the jamming of P predefined areas or positions in a network of transmitters, and which uses closed-loop control ...

(EN) The invention relates to a container for stacking cards, in particular contactless cards and to a card recycling module provided with said container. The inventive container comprises at least one wall unit (2) in which the cards (1) are stacked, a lift (5) on which the cards are stacked and whose position i...

Method of blind demodulation of signals arising from one or more transmitters, the signals consisting of a mixture of symbols comprising at least one step of separating the transmitters by using the temporal independence of the symbol trains specific to a transmitter and the mutual independence of the transmitters. ...

The general field of the invention is that of the display devices that comprise an active liquid crystal matrix of twisted nematic type. The matrix comprises a set of pixels, a set of rows and of columns and an electronic control device. Each pixel is controlled by a transistor. The voltage applied to each contr...

The proposed solution implements a method and a system for optimizing an array of sensors from a specification. This solution notably comprises: • the modelling, by incidence and polarization, of the gain of an antenna as a function of its orientation (αn, ßn) and its physical nature, • the establishing of mathem...

A method and device for real-time characterization of frequency-hopping networks, in which the signal to be characterized is converted into a digital signal and the frequency characteristics of the signal are determined, comprising at least the following steps: • a frequency hop is sought for synchronization with t...

The present invention relates to a process for producing a block of low-frequency piezoelectric composite material consisting of rows of superposed ceramic posts embedded in a dielectric. This process consists mainly in the production of the block of composite material from two superposed identical half-blocks, pro...

The invention relates to a method for detecting targets via a radar in the presence of diffuse backscattered echoes, the targets being designated, according to an a priori assumption about the location of the targets, as regards distance DDO with an inaccuracy domain ΔDDO and as regards radial speed VrDO with an ina...

ABSTRACT Method for detecting the space orientation and position of an object. The invention relates to a method for the optical detection of the position and orientation of an object by means of an optical device comprising at least one parallelogram fastened to said object, the optical device comprising optical ...

A deployable reflector (RP), for a space observation instrument, comprises a chosen number of deployable reflecting elements (Ela-E3b) suitable, once deployed in a first position, for together defining a reflecting area in the form of a so-called Reuleaux triangle (RD) with closed convex curve whose width is constan...

Method for characterizing one or more transmitters and/or one or more parameters associated with a transmitter by using a reception station comprising a device suitable for measuring over time a set of K parameters dependent on the transmitters associated with vectors % representative of the transmitters for 1...

This invention relates to a method for determining the position of satellites in a satellite navigation system. The method uses satellite position data (42) external to the navigation system and referenced in a coordinate system related to the earth, these data being converted (33) into a Galilean coordinate system...

A device (D), dedicated to photovoltaic conversion under high spectral irradiance, comprises at least: i) a photovoltaic cell (CP) comprising a lower face provided with a. conductive layer (CC) and an upper face (FSC) provided with a carrier collection grid (G) ; ii) at least one protective screen (EP) made of glass...

The invention relates to an optical instrument comprising at least one mirror called the primary mirror (3), placed in a cavity (2) and comprising an active face capable of being subjected to instantaneous variations of the incident radiative flux. According to the invention, the cavity (2) comprises a rigid interna...

Heterodyne mixer comprising: a divider of a signal RF for generating a signal RF1 and a signal RF2; a reference means comprising a local oscillator generating a reference signal LO; a second division means for dividing the reference signal into a reference signal L01 and into a reference signal L02; at least two...

The present invention relates to a signal acquisition chain comprising a frequency-selective attenuator comprising at least one attenuator module (102) provided at least with an input (102a), with an output (102c) and with a third port (102b,. 102d), a rejection module centred on one or more frequencies F0, F1 and d...

A control device (D) , for a spacecraft (S1) or" a group of spacecraft moving in formation, comprises i) an assembly consisting of three antennas (A1-A3) installed on a face of the spacecraft (S1) and capable of emitting and/or receiving first and second RE signals exhibiting first and second frequen...

A method of linear unsupervised classification allowing a database composed of objects and of descriptors to be structured, which is stable on the order of the objects, comprising an initial step for transformation of the qualitative, quantitative or textual data into presence-absence binary data, characterized in t...

ABSTRACT METHOD AND SYSTEM PERMITTING THE SEQUENTIAL REORGANIZATION OF SIGNALS A system for sequentially reorganizing signals received on a set of sensors, characterized in that it comprises, in combination, at least the following elements: o a network of aerials (1n) or sensors, o a high-precision cloc...

A method making it possible to reconstruct a first signal taking the form of a series of pulses of width T, characterized in that said first signal is derived from a revolving beacon and takes the form of a sinusoidal signal. said first signal to be reconstructed is filtered in a first filter (16) at a frequency...

A method for interpolating steering vectors a(θ) of a sensor network, the sensor network receiving signals transmitted by a source, characterized in that, for the interpolation of the steering vectors a(θ), use is made of one or more omnidirectional modal functions z(θ)K where z (θ) = exp (jθ) where 0 corresponds...

The present invention relates to an onboard ticketing terminal notably aboard a public transport vehicle. The ticketing terminal (30) comprises a body (39) equipped with at least: • a card reader; • an orientable customer interface (36, 37); • a printer, incorporated into said body (39), paper output (40) from t...

Device and method for amplifying pulsed RF signals, comprising one or more transistors, each comprising a drain, a gate and a source, characterized in that it includes a device for synchronizing the supply for the drain with an RF pulse.

The invention concerns a device (D) for transmitting and/or receiving signals representing data in a satellite communication (SAT) provided with a fixed frequency bandwidth. Said device (D) comprises transmitting and/or receiving means (MER) for transmitting and/or receiving signals in multiple beams, and contro...

The invention relates to the field of radio monitoring systems, and in particular systems handling both spectral measurement and transmission locating functions. The invention consists of a structure combining all of the means needed to handle these functions, all of these means being managed and synchronized b...

The invention relates to successively managing a service quality in a packet communications network which comprises several communication lines connected to each other hy means of a router and supports a signalling protocol. The inventive method consists in successively reserving resources in the communication line...

The field of the invention is that of fire control for military aircraft when shooting at a moving target, and especially an air-to-air gun shooting at a target in flight. In certain configurations of aerial engagement, a military aircraft is apt to use its gun to destroy a target consisting of another aircraft. In...

The present invention relates to an antenna system for a mobile carrier (40). It involves a support (2) to which antennae (4) are attached. The support (2) may be attached to a mobile carrier (40), for example a helicopter. The antennae (4) are prominent and attached to a side shielded from the waves (44) reflected ...

The carrying out of the invention requires the preallocation of a memory spaces (AO ... A6) group (DHS) to a card. The number of allocated memory spaces is greater than the number of records (E1 ... E6) of a related file (FHS). The number of extra-allocated memory spaces makes it possible to carry out the inventive ...

The inventive method for tracking one or several transmitters by means of a sensor network movable with respect to said transmitters consists at least in determining director vectors ak corresponding to the response of a sensor network to an incidence source (, ∆) according to incidence parameters 6, A and to a p p...

ABSTRACT MULTI-TOPOLOGY AND MULTI-SERVICE ROUTING SYSTEM System and method for routing a stream between several nodes, Ni, comprising a network, the stream being transmitted by a source and being intended for one or more destinations taking account of the mobility requirements of the users and of the network nodes ...

The subject of the invention is a method for determining the position error and the speed bias of an inertial platform aboard a carrier pusuing a trajectory towards a target, characterized in that it furthermore comprises the following steps: acquiring aboard the carrier a series of SAR-type images of the target; ut...

The present invention relates to a bidirectional frequency mixer, as well as a radiofrequency transceiver system including at least such a mixer. The mixer includes two ports separated in intermediate frequency Fl, one for the reception, the other for the emission and a common port in frequency RF both for reception...

A transmit and/or receive array antenna comprises an array (R) of sub-arrays (SR) of at least one radiating element (ER) and control means charged with controlling the amplitude and/or the phase of the radiofrequency signals to be transmitted or received in the form of waves by each of the sub-arrays (SR) so that th...

The pulsed electrical remote control interface for an equipment item including a plurality of functions to be controlled comprises at least a first command input associated with a first command line (TC-Type, TC-Type-plus, TC-Type-minus) for selecting at least one function (RF ON, RF OFF, ALC ON, ALC OFF, FCA UP, FC...

System and method making it possible to operate in an interrogator mode and/or in a passive listening mode characterized in that it comprises in combination at least the following elements: • an antenna (6) having a given aperture sector, • a control means (31) making it possible to toggle the system into a first ...

A method and device for implementing a smart antenna in a network that uses a deterministic access protocol, one or more mobile stations MS and at least one base station BS, the transmitted data being included in a data frame, characterized in that it comprises at least the following steps: On entry into the ...

Method of demodulating a signal in a transmission system where the modulation includes several substantially orthogonal subcarriers, the vector of the propagation channel H[n,k] being known, or the received signal including at least pilot symbols emitting reference data. It -comprises at least one step of estimating...

The invention relates to a mapping method implementing a radar used in passive mode. It is possible to use such a radar for locating an object likely to reflect an electromagnetic wave transmitted by a transmitter the position of which is known. Movable objects (3) capable of reflecting rays received from transmitte...

The present invention consists of a solution to the adherence to and improvement of the specifications regarding the conducted susceptibility of a microwave chain. It has the main advantage of enabling significant attenuation of the parasitic modulated signals (PAR4) carried in the microwave chains of microwave dev...

ABSTRACT METHOD AND DEVICE FOR RETRIEVING DATA AND TRANSFORMING SAME INTO QUALITATIVE DATA OF A TEXT-BASED DOCUMENT Method for extracting information from a data file comprising a first step wherein the data are transmitted to a device (3.1) or "tokenizer" adapted to convert them in the course of a first step into...

The invention relates to a mobile terminal for electronic transactions. The invention also relates to a secure electronic transaction system comprising one or more mobile terminals. The inventive terminal (1) comprises an application support (2) and a coupler (3) for performing the necessary media read and write ope...

The invention relates to a pulsed laser imaging source emitting at a wavelength of about 1.5 microns in a spectral band (AA) of a few nanometers and delivering a power of between at least a few tens of millijoules and several hundred millijoules, characterized in that it comprises: a source (Ds) emitting a wave hav...

A simulation and experimentation device, characterized in that it comprises at least the following elements: • one or more subsystems (11, 12, 13) that are involved in a simulation of a given future system, • for each subsystem (11, 12, 13) a data taking device (21, 22, 23), the data having a given profile, • a...

Method for transmitting data having a first format or format 1 in a data stream complying with a second format, the second format or format 2 consisting of a stream of data symbols incorporating, in a regular manner, a symbol dedicated to synchronization and placed every r data symbols, the symbol dedicated to synch...

The invention relates to sonar transmission means and in particular to transmission means that enable the implementation of an omnidirectional acoustic transmission. The invention relates to a method for implementing an omnidirectional transmission using a towed linear aerial of length L greater than the wave length...

A predistortion linearization device (D) produces gain and phase expansions making it possible to compensate for the gain compression and phase variation of a power amplifier. This device (D) also allows the conventional adjustment of amplitude, the adjustment of the form of the gain and phase expansions as a functi...

Device for detecting non-phase-modulated pulsed signals or sequences of pulses of a determined frequency comprising means for detecting tangling of pulses, at least one amplifier (11) receiving a radiofrequency signal, and restoring at least one first signal (RSSI) representative of the envelope of the input signal,...

Device for detecting non-phase-modulated pulsed signals, comprising at least one amplifier (11) receiving a radiofrequency signal, and restoring at least one first signal (RSSI) representative of the envelope of the input signal, and a second normalized signal, characterized in that a module for estimating the stabi...

Process for manufacturing a sintered ceramic composite, based on silicon nitride and ß-eucryptite, which includes a step of producing a first powder blend (101), consisting of a powder of silicon nitride in crystalline form and a powder of a first lithium aluminosilicate in crystalline form, the composition of which...

Tracking method associating a passive radar with other sensors The invention concerns a method for merging detection information produced by various sensors of a detection system formed by a passive radar system including various bistatic bases and by an external sensor. The method includes two processing phases. D...

A system of geographical location of at least one radio signal transmitter (ES) located on the Earth"s surface including: - a set of satellites (SAT1, SAT2, SAT3) equipped with receiving antennas (ANT1, ANT2, ANT3) adapted for receiving said signals, forming a main extended interferometry device, - an intersatelli...

The general field of the invention is that of optical systems for detection of the orientation of mobile objects in space . The main application is helmet posture detection inside of an aircraft cockpit. The system according to the invention operates by interferometry. It comprises a fixed electro-optical device...

The invention consists of a method that makes it possible to produce an association of bistatic blips, formed by the different bistatic bases of a multistatic radar system comprising a plurality of transmitters and receivers remote from one another, this association making it possible to transmit to the tracking...

The subject of the invention is a method making it possible to form adaptive reception channels for a system comprising an antenna formed from a plurality of sensors. The method according to the invention consists firstly in grouping the sensors in a given arrangement, so as to construct N sub-antennas, the ph...

The invention relates to an interface (8) which comprises a socket (10) and a plug (12). The socket (10) comprises a body (11) and two coaxial cables (22), each comprising a core (22A) , a braid (22C) coaxial to the core (22A), and an electric insulator (22B) between the core (22A) and the braid (22C). Each coaxi...

The invention relates to a method for locating transmitting sources by the use of the mutual coupling of a small -base antenna array and a fastio switching single-channel receiving system using the method. The invention relates to a single-channel radiogoniometry solution adapted to a fast switching of the recei...

System for simultaneous acquisition of colour and near-infrared images comprising a single matrix sensor comprising a first second and third type of pixels sensitive to respective visible colours and a fourth type of pixel panchromatic these pixels also being sensitive in the near-infrared; and a circuit for process...

The invention relates to a system (10) for supervising access to a restricted area including at least one obstacle (16) that is mobile between a deployed configuration in which said obstacle extends across a passageway (14) for the entry and/or exit to/from said restricted area and a stowed configuration in which sa...

The general field of the invention relates to the binocular helmet-mounted display devices worn by aircraft pilots. In night use, one of the drawbacks of this type of device is that the uprights of the cockpit introduce significant visual masks into the field of the optical sensors. The method according to the inven...

This payment system (10) comprises a payment terminal (12) and an electronic payment support (14) designed to interact with the payment terminal (12) the payment support (14) carrying an amount having a first residual value and comprises: a first rewritable memory (34) and a second fuse memory (36) comprising a plur...

The invention consists of: an optical hydrophone; and a fiber optic element which forms a laser cavity and is housed inside a mechanical structure comprising an open rigid cylindrical body that defines a cavity containing a fluid in which cavity the fiber optic element is housed said rigid body being sealed at the e...

The invention relates to an ultra-low current generator and to a voltage regulator using such a generator. The latter comprises: - a first set (41) of Q of transistors (P1, P2, P3) connected as a current mirror and able to be linked to the power supply (Vdd); - a second set of Q-1 of transistors (N1, N2) connected...

The amplification device with reduced bulk comprising at least one plate parallel to a plane XY and at least two amplifier modules (41a, 41b) mounted on the plate, each amplifier module (41a, 41b) comprising an amplifier element (11a, 11b), an input connection waveguide (12a, 12b) and an output connection waveguide ...

The invention relates to a method for calibrating measurement instruments of a moving optronic system occupying positions Pi P2 ... Pi ... said optronic system comprising: a device (10) for acquiring images of a scene including a fixed object G; means (15) for tracking the fixed object G during the acquisition of th...

The method according to the invention consists in carrying out, by means of an underwater vehicle moving above a given zone of the sea bed, observations on the basis of which the positions of elements of relief and of objects present on the bed are estimated. These observations are associated with fictitious objects...

The subject of the invention is a wideband digital receiver comprising at least an antenna (200), an amplifier (201), a digital IFM device (214) for measuring the frequency of the received signal or signals based on the result of discrete Fourier transforms DFT applied to said received signals, the receiver comprisi...

The subject of the invention is a wideband microwave digital receiver comprising at least an antenna (200), an amplifier (201), and a digital IFM device (214) for measuring the frequency of the received signal or signals, the receiver being characterized in that.a consistency indicator (212) for indicating the consi...

The invention relates to a range finder which includes a device for transmitting a laser beam and a device for receiving the laser echoes backscattered by a target, comprising a frontal optical system (10) focusing the echoes on a detection zone (5) which comprises at least one elementary detection zone (51) associa...

A (GS) for an equipment (EQ) including an electrical reference (ME) and including an area provided with at least two photoelectric cells (C) electrically connected and each covered by a protective window that can become electrostatically charged. This solar generator further includes, on the one hand, at at least on...

Composite having a coefficient of thermal expansion less than 1.3 x 10" 6 K-1, characterized in that the composite is a sintered ceramic based on an oxide and on ß-eucryptite crystals having a ß-eucryptite content of less than 55% by weight (69% by volume)

The present invention relates to an autonomous antennal device with fast pointing switching. The antennal device (102) comprises an electron beam switching antenna (106), said device being linkable by a cable (112) to a radioelectric facility (108), the device comprising a calculation unit (104) able to determine a ...

The invention relates to a method for geo referencing an area using an optronic imaging system (100) including a step comprising the acquisition of M successive images using a detector (1) the imaged area being distributed between said M images with M = 1. The invention also comprises the following steps: measuremen...

The invention relates to a laser device for emitting pulses of variable period and stabilized energy which comprises a resonant cavity (1) comprising an amplifying medium (11) that has a stabilized gain G and emits laser pulses at a wavelength ? the resonant cavity (1) further comprising a Q switch (12). The laser d...

THE FIELD OF THE INVENTION IS THAT OF OPTICAL SYSTEMS FOR DETECTING THE POSTURE OF A MOBILE OBJECT IN SPACE. THE SYSTEM COMPRISES AN ELECTRO-OPTICAL FIXED DEVICE (OT) OF KNOWN ORIENTATION COMPRISING A FIRST POINT EMISSION SOURCE (S), A TELECENTRIC EMISSION/RECEPTION OPTIC AND A PHOTOSENSITIVE MATRIX SENSOR (D)....

The invention relates to an antenna structure (10) for telecommunications in particular by satellite characterised in that the antenna structure (10) includes at least one dipole antenna (12) having a helical shape and sized to transmit and/or receive at least one electromagnetic wave having a frequency higher tha...

The invention relates to an active towed sonar comprising a transmitting antenna built into a submersible object called a fish (13) a submersible receiving antenna called a streamer and a tow cable (12) for pulling the fish (13) and the streamer. According to the invention the tow cable (12) comprises a termination ...

The invention pertains to an omnidirectional antenna (100) intended to equip a sonar, the antenna being centered around a longitudinal axis (10) and comprising an assembly of emission rings (20) stacked along the longitudinal axis, each emission ring (20) being formed around the longitudinal axis. The emission ri...

The invention relates to a built in antenna device (3) comprising a protective casing (300) having a hydrodynamic shape defining an inner cavity and an upper attachment interface to be mechanically secured to a carrier structure the device also comprising an antenna (31) housed inside the chamber and attached to the...

Transmitting and/or receiving antenna (1) intended to be borne by a submersible vehicle, characterized in that it comprises at least one of the following elements: • a support element (10); • a first loop (2) of a given shape comprising a first end (21) connected to a first point and a second end (22) connected ...

The invention relates to a device for towing very long tubular objects (10). Said device includes a frame (61) and an assembly (62) that is removably attachable to the frame (61). The removable assembly (62) includes:  pulling means (63) capable by means of the movement thereof of driving the object (10) via frictio...

The invention relates to an electronic board (1) including an assembly of a printed circuit board (2) including a first surface (4) which receives at least one electronic component and a heat sink (3) the printed circuit board (2) and the heat sink (3) being stacked in a stacking direction (z) said heat sink (3) bei...

The invention relates to a perforated piezoelectric hydrophone and an antenna comprising a plurality of hydrophones. The hydrophone comprises a stack (10) of layers (1 2 3 4 5) adhered to one another the layers (1 2 3 4 5) comprising at least one piezoelectric layer (2 4) and a plurality of so called rigid layers (1...

A fairing intended for fairing an elongate object intended to be at least partially submerged the fairing comprising a plurality of fairing sections (12) each fairing section (12) comprising a plurality of fairing elements (13) the fairing elements comprising a channel intended to receive the elongate object and bei...

A power converter characterised in that it comprises a power structure (11) receiving as input an alternating voltage comprising at least one phase and supplying as output a direct voltage (Vs) the output power of said power structure (11) being regulated by a multiplier (15) receiving as input a current control sig...

The invention relates to a method for carrying out distributed location of an electro-magnetic source-by using a plurality of sensors-4hat are spread over the geographical area of interest and that carry out using two reception channels: • an estimation of the received power, • an estimation of the differential ph...

The method according to the invention carries out a measurement of the distance from the ground of an aircraft by undertaking the emission of waveforms making it possible to obtain, after demodulation, of the signals received in return and sampling of the demodulated signals at a frequency Fech, two signals Eo(t) an...

The invention relates to a method for processing (80) a signal from a coherent lidar comprising a coherent source (L) the method comprising steps consisting of: - generating (100 110) a first beat signal (Sb1) and a second beat signal (Sb2) using respectively a first detection assembly (D1) and a second detection as...

The method comprises at least: - a preliminary step of storing a set of tracking algorithms as a function of types of targets and of environments, each tracking algorithm being a function of a type of target in a given environment; - a step (1) of detecting signals backscattered by said targets resulting in primar...

The modulation consists - in amplifying (1) said microwave signal (21) phase shifted by a given angle according to a first sinusoidal signal (110) in order to obtain a first amplified signal and; - in amplifying (1) said microwave signal (22) phase shifted by said given angle increased by p according to a second sin...

Method for synchronizing in a TDMA frequency-hopping ad-hoc telecommunications network in which slots comprising at least one dwell of set duration and a guard time at least equal to the maximum propagation time in the network are respectively reserved for the emissions of one particular piece of equipment of the ne...

A buoy (1) comprising a surface unit (5) comprising a sealed tank (1000) comprising an inflatable bag (3) a tubular wall (70) of axis z and a bottom (71) the tubular wall and the bottom delimiting a volume referred to as the inner volume (60) the surface unit comprising at least one cartridge (11) enclosing a compre...

The present invention concerns an amplitude goniometer comprising P receiver channels, P being greater than or equal to 2, each receiver channel being identified by an index p, each receiver channel comprising an antenna (A0,..., A5) coupled to a receiver chain followed by at least two digital receiver modules each ...

The general field of the invention is that of sighting or spotting scopes including, in a single mechanical structure (80), a camera (10) and a video microdisplay (50) in association with an eyepiece (60). The eyepiece of the scope according to the invention includes an optical combiner (70) that is arranged so as t...

The invention relates to devices for medical imaging by X-ray. More specifically, it relates to the simulation of the deployment of an endoprosthesis in order to assist the surgeon in an endovascular surgical procedure. The invention makes use of a single 2D image in order to determine certain characteristics of ...

The invention relates to a method for imaging a scene using an imaging system making it possible to obtain an image of the scene, the imaging system comprising a device for acquiring frames according to acquisition parameters, and a unit for processing the acquired frames. The method comprises the steps: A) selectio...

The invention relates to a body towed by a cable behind a vessel and commonly termed towfish, the towfish (12) comprising a supporting structure (23) configured to move in the water in a main horizontal direction (25), and at least one appendage (27) configured to generate a hydrodynamic lift (P) for the towfish (12...

The invention relates to a method for determining the detection threshold of a radar suited to a given environment, characterized in that it comprises at least: - a step (22) in which a set of statistical quantities characterizing said environment is selected; - a step (24) in which a set of functions is defined...

A radar (10) comprising a transceiver antenna (11) including a plurality of radiating elements (180) configured for transmitting and receiving an electromagnetic wave, said radar being characterized in that it comprises an 10 antenna gain control unit (12), by activating/inhibiting radiating elements, in transmi...

The invention relates to an electronic component (10) comprising a first set (11) comprising an interconnect layer (12) and an electronic circuit (13) having a front face (14) and a back face (15), which is connected to the interconnect layer (12) by the front face (14), characterized in that the first set (11) c...

Method and electronic system for managing the flight of an aircraft in a visual approach phase to a runway, related computer program This method for managing the flight of an aircraft in a visual approach phase to a runway is implemented by an electronic flight management system and comprises: - acquiring (120) ...

This method consists in: a first step (102) of making a generic component (110) including only a plurality of metallized holes (121), each metallized hole forming a via between first and second conductive layers of the component arranged on either side of a substrate; and, configuring (104) the generic component ...

The present invention relates to a method for analyzing properties of an incident signal by an analysis device comprising an antenna network comprising N linearly spaced antennas, the method comprising a step of: - receiving the incident signal by the N antennas, - shifting each signal received by a value of N times...

The invention relates to a method for detecting by radar the distance and relative velocity of an echo with respect to the carrier of the radar, comprising a transmitting step, a receiving step and a processing step. - In said transmitting step, at least one local transmission wave OLE is generated (1) with a pe...

A microstrip-type elementary antenna (1) comprising a stack of layers, the elementary antenna being capable of being in a planar configuration in which the layers are substantially planar and perpendicular to a stacking axis (z) along which the layers are stacked, the stack comprising a first conductive radiating el...

The invention describes a three-dimensional object detection system comprising: - a transmission device (201) configured to transmit signals according to a coloured transmission method in a first plane, - a reception device comprising at least two sensors (211, 212) arranged in a second plane perpendicular to the fi...

The invention relates to an array antenna comprising a plurality of mechanically separate radiating panels (300-1, 300-N) disposed side by side, means (351-1, 35M-1, 351 -N, 35M-N) for applying a shaping to the signals transmitted by the radiating elements of the panels, and a device (361) for managing the shaping o...

The invention relates to a radiology device comprising an ionising ray generator (12) and a detector (14) configured to detect the rays emitted by the generator (12), the generator (12) and the detector (14) being opposite each other, the device (10) defining a useful volume (60), traversed by the ionising rays orig...

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, - cla...

Disclosed is a solid-state amplifier comprising at least one interconnection, between a microtrack and a linearized impedance transformation waveguide ridge, provided with a clamping device.

The invention relates to a compact omnidirectional antenna for a dipping sonar. The antenna (40) includes a plurality of basic transmission rings (21) formed around a longitudinal axis of the antenna (40) and a plurality of hydrophones (22) distributed around the longitudinal axis the antenna (40) being intended fo...

The invention relates to a display device for application software which comprises: at least one screen; a plurality of functional modules each comprising an application program the result of which is suitable for being displayed in a window specific to the functional module; at least two work spaces each defined by...

The invention relates to a sensor (10) for analysing radar RAD emissions and communication COM emissions comprising: a common receiving stage (100) for digitalising an incident signal; a common primary analysis processing stage (200) for pre-processing the digitalised signal in order to determine a plurality of prim...

The invention relates to a method for temporally synchronizing two signals in a signal transmission device and the associated device. The two signals are used by a predistortion calculation loop (201) to calculate predistortion coefficients (115) applied to the signal to be transmitted before its amplification (103)...

The invention relates to a driving device comprising: a screw-nut system (17) comprising a threaded stem (18) and a first nut (20; 21) linked to the threaded stem (18) by means of a helical link; a gear (30) allowing a rotational movement to be transmitted to the threaded stem (18), a first toothed wheel (33) and a ...

Banding device (4) for encircling an object which has a cross-section having a regular-shaped perimeter, said device comprising a band (5) with a clamping strip (6) which forms a loop intended to surround the object, the clamping strip (6) comprising a central portion (9) which has a shape substantially correspondin...

The invention relates to a device (12) for controlling a transistor (10) comprising: a separating assembly (16) for generating a first voltage (VC) a transformer (18) for obtaining a first and a second converted voltage (VD VE) from the first voltage (VC) a rectifier circuit (20) for generating a third voltage (VF) ...

The invention relates to a method for confusing the electronic signature of a signal transmitted by a radar, comprising the generation by the radar of at least one pulse, characterized in that the method comprises a step of modulation, in the pulse, of the polarization of the transmitted signal, according to two ort...

The present invention relates to a signal analysis device (16), the analysis device (16) having N signal processing channels (22), each processing channel (22) comprising: a sampling device (24) operating at a sampling frequency, an analog-to-digital converter (26) operating at a conversion frequency, the conversion...

A method for active neutralization of the effect of the vibrations of a rotary-wing aircraft for a monostatic Doppler radar comprises: - a first step (104) of measuring and temporally extrapolating the vibration modes at the transmitting-receiving radar antenna, using a 3-axis vibration sensor, fixed to the antenna...

The present invention relates to an interference identification method for identifying interference situations due to spectral folding in a wide band digital receiver, the method being operationally implemented by means of an interferometric array, composed of two single polarization sub-arrays with P wide band ante...

The invention is a stimulation device, in particular for testing radio reception devices. It includes a signal generator (41) delivering an amplitude-phase law for beamforming purposes, transmitted in the form of a composite laser beam (43) that illuminates a matrix-array of photodiodes (422) of an emission subassem...

The invention relates to a method for calculating during use the geometric parameters of an x-ray imaging system, an object or a patient to be observed being placed between the x-ray source and a detector of x-rays having passed through the object or patient, characterised in that it includes at least the following ...

Leaky wave antenna of AFSIW structure comprising a top substrate layer (51) and a bottom substrate layer (31) sandwiching an intermediate layer (32) comprising a longitudinal aperture (323) of length L defining a waveguide and whose width W1 is delimited by two conductive lateral walls. The inner faces of the con...

Disclosed is a sonar comprising a first part (201) and a second part (202) connected by an electric carrier cable (203) configured to mechanically support the second part and allow the two parts of the sonar to exchange signals comprising: - a unidirectional signal referred to as a power supply signal (210, 220), - ...

The invention relates to a method for integrating a network antenna (A) into a medium (M), the antenna comprising a plurality of radiating elements (ERT) that ensure the transition between the antenna and the medium, the reflectivity of each element depending on a parameter, the reflectivity of a first element being...

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) comprisi...

The invention relates to a low drag dipping sonar comprising an antenna (20; 50; 80) provided with acoustic transmitters (22) and receivers (24). The dipping sonar further comprises a motorised winch (26) having a reel (32), and an actuator (30) configured to turn the reel (32) and a cable (14) wound around the reel...

The invention relates to a device for locking an object suspended on 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 movable jaws (72), a first actuator (75) and a second actuator, the two jaws (72) coming i...

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 en...

The proposal is a satellite system (10) comprising a radio frequency signal amplifier device (100) comprising a control and supply module (1040) and a plurality of travelling wave tubes (1020-n). The module (1040) is configured to apply to at least one of said tubes an anode voltage operating value, generating a cat...

The invention relates to a winch comprising a rotating drum (12), a cable (14) which can be wound around 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 allow the rotation of the drum (12) above a decreasing variable torque...

The invention relates to an electronic module comprising a main block (101) and a protective layer (120). The main block (101) has side faces (1021, 1022). The protective layer (120) is electrically connected to the main block (101) via at least one connection portion (102, 103) present at one of the lateral faces (...

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 ...

The invention relates to a device and a method for handling volatile powders. The device comprises a hermetically sealed chamber (12) comprising a flap (20) for closing an opening (16) disposed through a wall (18) of the hermetically sealed chamber (12), the device (10) comprising, on the outside of the hermetically...

ABSTRACT The invention relates to a system (6) for detecting leaks of cooling fluid in electronic equipment, suitable for electronic equipment on-board aircraft, including a gas detection sensor (8), said cooling fluid emitting at least one volatile organic compound, the or each volatile organic compound having...

The invention relates to an image acquisition method (100) for performing aerial reconnaissance, implemented by an optical system on board a mobile platform (PM) and having a line of sight (LV), the optical system capturing an image of an elementary area on the ground, called thumbnail (Im), said method comprising t...

Radiological-image-processing method for processing a radiological image /(x, y), in the digital format, comprising at least one radiological anomaly detected using a convolutional neural network trained to detect radiological anomalies in radiological examinations, the radiological image /(x, y) being characterised...

The invention relates to a container for transporting volatile powders, comprising a hermetic enclosure of tubular shape with a circular cross section about an axis, a suction duct (66) configured to remove the volatile powder arranged in the hermetic enclosure, the suction duct (66) opening into the hermetic enclos...

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 f...

ABSTRACT The device (10) for processing electrical signals comprises: - a module (60) for processing electrical signals: - a first terminal (50) and N second terminals (52), each connected to the module (60) and apt to receive an electrical signal to be processed or to distribute a processed electrical signal...

ABSTRACT The present invention relates to a method for determining detection thresholds of a CFAR detection system of a sensor observing an environment, the CFAR detection system being provided with an estimator adapted to determine an estimate of parameters related to noise affecting the sensor depending on param...

ABSTRACT The invention relates to a method for measuring the performance of a CFAR detection system of a sensor in observing an environment, the CFAR detection system being provided with an estimator suitable for determining an estimate of parameters related to noise affecting the sensor depending on parameters ...

Disclosed is a receiving device for acoustic waves, comprising: - an acoustic antenna capable of having an electrostatic microphone function distributed along a line (L) of the acoustic antenna comprising a conductor (A) and a dielectric material (D), the line (L) being a transmission line or being configured to hav...

ABSTRACT The case for packaging electronic component(s), forming a housing intended to receive at least one electronic component (4), including a first support wall (8) including an inner face (14) suitable for receiving the electronic component(s) (4), and an outer face, further comprises a microfluidic cooling d...

The invention relates to a detection system (1) comprising a phased array antenna (12) comprising unitary radiating elements, said system being suitable for, in each cycle, successively directing, by way of the successive application of a first and a second determined phase law to the electrical signals for supplyin...

The invention relates to a method for sending a wireless communication, the method comprising: obtaining symbols through channel coding and digital modulation; DSSS spreading of each symbol obtained with a spreading code of period TDSSS applied with a spreading factor, the SF chips spreading a symbol being specific ...

ABSTRACT The invention relates to a method for designing an array of N antennas arranged on a metal surface, substantially omnidirectional in terms of direction of arrival and in terms of polarization within a frequency band having a minimum frequency fmin and a maximum frequency fmax, with N greater than 1, com...

Disclosed is an iris diaphragm having an optical axis (O) and comprising: - a fixed ring (RF); a plurality m ? N > 1 of blades (L) defining an aperture (OD) of the diaphragm with a predetermined shape, the blades being capable of moving in a plane perpendicular to the optical axis relative to the fixed ring, each bl...

Disclosed is an iris diaphragm (1) having an optical axis (O) and comprising: - a fixed ring (RF); - a movable ring (RM) capable of rotating about the optical axis relative to the fixed ring and comprising a plurality n of guide ramps (GG); - a plurality of n blades (L) defining an elliptical aperture (OE) of the di...

The invention relates to a method for assisting with guiding a surface vessel (10) for towing an underwater device, the method comprising: a) discretising the geographical sector (21) around the surface vessel (10) into a plurality of zones (22, 23), each zone (22, 23) being ranked according to a degree of accessibi...

The invention relates to a system (10) for manoeuvring a marine craft (20), said system (10) being intended to be positioned at the edge (310) of a ship (30), said system (10) comprising a ramp (110) positioned on said ship (30), said ramp (110) having a first end (1101), a carriage (120) designed to travel along th...

The invention relates to an optical window comprising on its surface two electrodes connected to a voltage generator, in which at least one of the electrodes is a doped diamond electrode, the diamond being doped with an element that can make the diamond conductive.

The present invention relates to variable-effect filtering device (12), comprising: - a filter (20) having a working surface (23) comprising a central zone (ZC) and a peripheral zone (ZP), the filter (20) having a predefined optical property over a filtering zone, the filtering zone being the central zone (ZC) or th...

The invention relates to a method for adaptively configuring telecommunications during a mission by an aircraft (30) over wireless links (52) with a hub (80) the method comprising the steps of: predicting the future state of the links by means of a connectivity predictor (22) according to the current state of...