公开(公告)号：US20220229172A1

公开(公告)日：2022-07-21

申请号：US17576657

申请日：2022-01-14

Applicant: THALES

Inventor： Pascal CORNIC ,  Yoan VEYRAC ,  Renan LE GALL

IPC: G01S13/89 ,  H01Q19/06 ,  H01Q19/10 ,  H03F3/24 ,  H01Q13/02

Abstract: An active antenna radar able to produce an image with high angular resolution over a wide angular coverage, the antenna includes a number N of transmission channels and a number M of reception channels, each transmission channel and reception channel comprising an elementary antenna: each elementary antenna comprises a lens or a reflector associated with an array of elementary sources, the sources being configured to illuminate the lens or the reflector and at least the apertures being substantially arranged in the focal plane of the lens or centred around the focal point of the reflector; each elementary transmission or reception source being able to form or receive, respectively, a beam focused in a given direction, the directions being different from one transmission or reception source to another of one and the same elementary antenna; each elementary transmission or reception source being connected to a power amplifier or to a low-noise amplifier, respectively, and to switching means allowing the source to be supplied or not to be supplied with power or the signals from the source to be received or not to be received, respectively.

公开(公告)号：US20230009797A1

公开(公告)日：2023-01-12

申请号：US17782065

申请日：2020-12-03

Applicant: THALES

Inventor： Rodolphe COTTRON ,  Pascal CORNIC ,  Yoan VEYRAC

IPC: G01S13/88 ,  G01S13/933 ,  G01S13/95 ,  G01S13/91

Abstract: A method and a device for measuring altitude of an aircraft relative to a point on the ground, said aircraft carrying a radar system comprising a directional antenna to transmit a radio frequency signal along a aiming axis, including. controlling the transmission of a radiofrequency signal along the axis, calculating received powers as a function of radial distance on a sum channel and an elevation deviation channel, calculating tilt angular deviation values, determining an estimator of the radial distance of the aircraft relative to the point on the ground intercepted by the aiming axis as a function of at least one zero crossing of the angular deviation measurement in a selected area of the angular deviation measurement curve, calculating an aircraft altitude relative to said point on the ground as a function of the estimator of the radial distance and the elevation angle of the aiming axis.

公开(公告)号：US20210132187A1

公开(公告)日：2021-05-06

申请号：US17084495

申请日：2020-10-29

Applicant: THALES

Inventor： Rodolphe COTTRON ,  Pascal CORNIC ,  Yoan VEYRAC

IPC: G01S7/288 ,  G01S13/58

Abstract: A method for processing coherent MIMO radar processing DDMA waveforms and includes 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 receiver, 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 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.

公开(公告)号：US20180287627A1

公开(公告)日：2018-10-04

申请号：US15768815

申请日：2016-10-10

Applicant: THALES ,  UNIVERSITE DE BORDEAUX ,  INSTITUT POLYTECHNIQUE DE BORDEAUX ,  CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE

Inventor： Patrick GARREC ,  Richard MONTIGNY ,  François RIVET ,  Yann DEVAL ,  Yoan VEYRAC

IPC: H03M3/00 ,  H03K4/02 ,  H03M1/74 ,  H03M1/12

CPC classification number: H03M3/502 ,  H03K4/023 ,  H03M1/1245 ,  H03M1/742

Abstract: An analog signals generating device comprises a current pump controlled by a control code generated by a module for calculating the digital code with shaping of noise. The calculation module receives as input a digital signal representative of the analog signal to be generated and comprises at least one quantizer and a quantization error compensating stage. The current pump comprises two groups of at least one electric current generator and two groups of at least one switching means, the switching facilities being controlled by the control signal and causing the electric currents to flow between the electric current generators and the inputs of a differential amplifier exhibiting a predominantly capacitive input impedance and connected in series between the two groups of switching means.

公开(公告)号：US20240027578A1

公开(公告)日：2024-01-25

申请号：US18357075

申请日：2023-07-21

Applicant: THALES

Inventor： Yoan VEYRAC ,  Pascal CORNIC ,  Renan LE GALL ,  Gonzague BERTIN DE LA HAUTIERE

IPC: G01S7/35 ,  G01S13/89 ,  G01S7/03

CPC classification number: G01S7/352 ,  G01S13/89 ,  G01S7/03

Abstract: The invention relates to a radar system comprising:



a frequency synthesizer, configured to generate a modulated local signal (Sf0+Δf0);
at least one frequency multiplier, configured to supply an intermediate-frequency local signal (Sf_inter+Δf_inter) to each emission channel (8) and to each reception channel, the intermediate-frequency local signal (Sf_inter+Δf_inter) being a fractional multiple of the modulated local signal (Sf0+Δf0);
a plurality of emission frequency transposition components, the emission frequency transposition components being synchronized with one another by the modulated local wave (Sf0+Δf0);
a plurality of reception frequency transposition components, the reception frequency transposition components being synchronized with one another by the modulated local signal (Sf0+Δf0), the reception channels being configured to demodulate the intermediate-frequency reception signal (Sf_inter_Rx+Δf_inter_Rx) using the intermediate-frequency local signal (Sf_inter+Δf_inter).

公开(公告)号：US20230417893A1

公开(公告)日：2023-12-28

申请号：US18247868

申请日：2021-09-14

Applicant: THALES

Inventor： Pascal CORNIC ,  Yves AUDIC ,  Renan LE GALL ,  Yoan VEYRAC

IPC: G01S13/42

CPC classification number: G01S13/426 ,  G01S2013/0254

Abstract: A Doppler radar with ambiguous electronic scanning, using an active antenna comprising an array of elementary transmission antennas and an array of elementary reception antennas with the same angular opening. The arrays have the same radiation plane. The transmission array is ambiguous with a number of ambiguous lobes within said angular opening of said elementary antennas greater than or equal to 2. The reception array comprises at least one ambiguous lobe within said angular opening. The arrays are arranged so that the product of the transmission and reception radiating patterns only produces a single main beam within the field defined by said angular opening. The coverage of said angular field by said radar obtainable by:



forming at the transmission antenna radiating patterns that are focused within a field limited to the transmission ambiguity field;
simultaneously forming several reception radiating patterns focused at reception in the ambiguous transmission directions.

公开(公告)号：US20220406202A1

公开(公告)日：2022-12-22

申请号：US17774781

申请日：2020-11-19

Applicant: THALES

Inventor： Rodolphe COTTRON ,  Jean-Philippe LEBRAT ,  Yoan VEYRAC

IPC: G08G5/02 ,  G08G5/00 ,  G01S13/933 ,  G01S13/89 ,  B64D45/08

Abstract: The present invention relates to a method for assisting the landing of an aircraft on a landing runway, the method comprising: detecting, by a radar, characteristic elements of the landing runway, determining the angular offset between the axis of the radar and the runway axis as a function of the coordinates of the characteristic elements detected, and determining, as a function of the angular offset determined and the coordinates of the characteristic elements detected: the distance of the orthogonal projection onto the runway axis from the horizontal projection of the radar, and the distance of the orthogonal projection onto the straight line passing through the runway threshold from the horizontal projection of the radar.

公开(公告)号：US20200168111A1

公开(公告)日：2020-05-28

申请号：US16691031

申请日：2019-11-21

Applicant: THALES

Inventor： Yoan VEYRAC ,  Patrick GARREC ,  Pascal CORNIC

IPC: G08G5/02 ,  G05D1/10 ,  G06N3/08 ,  G06T17/05

Abstract: The method uses a fleet of aircraft being equipped with at least one radar sensor, it includes at least: a step of collective collection of radar images by a set of aircraft (A1, . . . AN) of the fleet, the radar images being obtained by the radar sensors of the aircraft (A1, . . . AN) in nominal landing phases on the runway, a step wherein each image collected by an aircraft is labelled with at least information on the position of the runway relative to the aircraft, the labelled image being sent to a shared database and stored in the database; a step of learning by a neural network of the runway from the labelled images stored in the shared database, at the end of the step the neural network being trained; a step of sending of the trained neural network to at least one of the aircraft (A1).

公开(公告)号：US20230213616A1

公开(公告)日：2023-07-06

申请号：US17777870

申请日：2020-11-26

Applicant: THALES

Inventor： Yoan VEYRAC ,  Richard MONTIGNY ,  Rodolphe COTTRON

IPC: G01S7/40

CPC classification number: G01S7/4026

Abstract: The invention relates to a system and a method for automatically harmonizing the position and/or orientation between an apparatus on board a mobile carrier and a reference frame of said mobile carrier, said mobile carrier being provided with an inertial unit able to provide measurements in the reference frame. The system comprises:



at least one accelerometer mechanically coupled to the onboard apparatus, and providing acceleration measurements in a reference frame referred to as the associated onboard apparatus,
a reception unit configured to receive measurements provided by said inertial unit and measurements provided by the accelerometer,
a computing unit configured to calculate values of parameters defining a geometric transformation for conversion of data from the reference frame of the carrier and the reference frame of the onboard apparatus, from the measurements, carried out for at least two different flight orientations, by said inertial unit and by said accelerometer.

公开(公告)号：US20220390592A1

公开(公告)日：2022-12-08

申请号：US17762370

申请日：2020-09-24

Applicant: THALES

Inventor： Pascal CORNIC ,  Renan LE GALL ,  Rodolphe COTTRON ,  Yoan VEYRAC

IPC: G01S13/89

Abstract: A radar imaging method using an active antenna comprising N transmission channels and M reception channels, transmitting in bursts of pointing cycles, is disclosed. The antenna covers a given angular range during a detection time unit of duration T, said time unit corresponds to a burst in which the N transmission channels are focused successively in a number De of pointing directions (di) such that: the pointing direction on transmission (di) is modified from recurrence to recurrence; each time unit of duration T comprising a periodic repetition of a number C of identical pointing cycles, each of these cycles comprising a number P of recurrences, the set of these P recurrences covers the De pointing directions (di); at least one beam is formed in reception on each recurrence in a direction included in the angular range focused on transmission in the pointing direction corresponding to said recurrence.