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公开(公告)号：US11063372B2
公开(公告)日：2021-07-13
申请号：US16478411
申请日：2018-02-01
Applicant: THALES , UNIVERSITE DE BORDEAUX , INSTITUT POLYTECHNIQUE DE BORDEAUX , CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
Inventor： Patrick Garrec , Anthony Ghiotto , Gwenaël Morvan
Abstract: An elementary antenna includes a planar radiating device comprising a substantially flat radiating element having a center and a plane defined by (i) a straight line passing through the center and (ii) another straight line perpendicular to the straight line and passing through the center, the radiating element comprising pairs of excitation points arranged in a quadruplet of excitation points located at a distance from the lines, comprising a first pair of excitation points arranged substantially symmetrically in relation to the straight line and a second pair of excitation points arranged substantially symmetrically in relation to the other line, the elementary antenna comprising processing to supply differential excitation signals for (i) exciting the excitation points and/or (ii) shaping signals emitted from the excitation points.
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公开(公告)号：US11022677B2
公开(公告)日：2021-06-01
申请号：US15939021
申请日：2018-03-28
Applicant: THALES
Inventor： Patrick Garrec , Stéphane Formont , Richard Montigny
IPC: G01S7/40 , G06T1/00 , G02B3/08 , G02B27/64 , G01S13/931 , G01S13/86 , G01S13/933 , G01S13/937 , H01Q1/28 , H01Q21/28 , H01Q5/22 , G02B27/20
Abstract: Disclosed is a calibration device of an imaging system for a moving carrier, the imaging system including: a support panel; an antenna array comprising radiating elements positioned on the support panel; and optical sensors capable of providing images and positioned on the support panel. The calibration device includes at least one optical pattern generator, each generator being secured to the support panel.
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公开(公告)号：US20190391225A1
公开(公告)日：2019-12-26
申请号：US16450645
申请日：2019-06-24
Applicant: THALES
Inventor： Pascal CORNIC , Nicolas Porez , Patrick Garrec
Abstract: The invention relates to a method for determining an angle of arrival of a received radioelectric signal implemented by a receiving antenna system including either one rotating antenna having at least two receiving channels, or two rotating antennas with a same speed each having a receiving channel, and having different antenna diagrams. The method includes, in the operational phase, the following calculating and storing a series of ambiguous angle error measurement values obtained from receiving amplitude values of a radioelectric signal coming from an emitting source on said first and second receiving channels, each angle error measurement value being representative of a ratio between receiving amplitude values on said first and second receiving channels, and corresponding to an angular deviation relative to a reference angular value; calculating a convolution function on said angular range tween said series of ambiguous angle error measurement values and a series of theoretical angle error measurement values of said receiving channels previously calculated and stored, determining an angle of arrival of said received radioelectric signal as a function of an estimate of a maximum of said calculated convolution function.
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公开(公告)号：US09484898B2
公开(公告)日：2016-11-01
申请号：US14891297
申请日：2014-05-19
Applicant: THALES , CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE , INSTITUT POLYTECHNIQUE DE BORDEAUX , UNIVERSITE DE BORDEAUX
Inventor： Patrick Garrec , Richard Montigny , Nicolas Regimbal , Yann Deval , François Rivet
Abstract: The system has: a set of at least two electric current generators, at least one capacitor and activation/deactivation devices for the electric current generators; the electric current generator being connected in parallel with one another and the capacitor being connected in series with the electric current generators, the activation/deactivation devices controlling the generators by a digital stream allowing control of the intensity of the electric current entering the capacitor and generating a trapezoidal voltage signal at the terminals of the capacitor, the analog signal being reconstructed through interpolation of the trapezoidal signal.
Abstract translation: 该系统具有：一组至少两个电流发生器，至少一个电容器和用于电流发生器的激活/去激活装置; 电流发生器彼此并联并且电容器与电流发生器串联连接，激活/去激活装置通过数字流控制发电机，从而允许控制进入电容器的电流的强度并产生 在电容器的端子处的梯形电压信号，通过对梯形信号的插值重建模拟信号。
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15.发明授权公开(公告)号：US11644557B2
公开(公告)日：2023-05-09
申请号：US16685585
申请日：2019-11-15
Applicant: THALES
Inventor： Rodolphe Cottron , Philippe Goy , Patrick Garrec
CPC classification number: G01S13/282 , G01S13/24 , G01S13/288 , G01S13/30 , G01S13/87 , G01S13/90 , G01S13/933 , G06T19/006
Abstract: A method for creating a virtual reception channel in a radar system includes an antenna possessing two physical reception channels (1r, 2r) spaced apart by a distance d in a direction x, two emission channels (1e, 2e) spaced apart by the same distance d in the same direction x and processing means, the method comprising: dynamically selecting two different waveforms, the waveforms being orthogonal to each other; generating a radar pulse of given central wavelength in each emission channel, each of the emission channels emitting one of the two different waveforms; acquiring with the reception channels echoes due to pulses emitted by the emission channels and reflected by at least one target; compressing the pulses by matched filtering of the echoes acquired by each physical reception channel, this involving correlating them with each of the waveforms generated in the emission channel; and repeating steps a) to c) while randomly changing one of the values of each of the phase codes associated with the generated waveforms until the level of the sidelobes of all the compressed pulses has stabilized; and radar system for implementing such a method.
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Patent Agency Ranking
公开(公告)号：US11249166B2
公开(公告)日：2022-02-15
申请号：US16450645
申请日：2019-06-24
Applicant: THALES
Inventor： Pascal Cornic , Nicolas Porez , Patrick Garrec
Abstract: The invention relates to a method for determining an angle of arrival of a received radioelectric signal implemented by a receiving antenna system including either one rotating antenna having at least two receiving channels, or two rotating antennas with a same speed each having a receiving channel, and having different antenna diagrams. The method includes calculating and storing a series of ambiguous angle error measurement values obtained from receiving amplitude values of a radioelectric signal coming from an emitting source on said first and second receiving channels, calculating a convolution function on said angular range tween said series of ambiguous angle error measurement values and a series of theoretical angle error measurement values of said receiving channels previously calculated and stored, and determining an angle of arrival of said received radioelectric signal as a function of an estimate of a maximum of said calculated convolution function.
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公开(公告)号：US10884117B2
公开(公告)日：2021-01-05
申请号：US16155766
申请日：2018-10-09
Applicant: THALES
Inventor： Stéphane Formont , Patrick Garrec , Richard Montigny
Abstract: The device includes at least: a set of optical and/or electromagnetic elementary sensors which are able to fly and means of command for piloting the flight of the sensors; processing means; a communication link between each sensor and the processing means; to produce an image of a given scene, the sensors fly while forming an array whose configuration is controlled by the command means, the processing means fusing the signals provided by the sensors with a view to delivering an image of the scene, the signals provided being representative of the scene.
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公开(公告)号：US10090871B2
公开(公告)日：2018-10-02
申请号：US14916954
申请日：2014-10-14
Applicant: THALES
Inventor： Patrick Garrec , Jean-Philippe Plaze , Benoit Mallet Guy
Abstract: A method managing the energy consumption of at least one electronic component in a radar reception chain, comprises a preliminary step of formulating a table containing values representative of the power level of received signals, each value being contained in a bin addressed by a triplet formed of a quantity corresponding to a measurement of the power level of a signal received from a target, of a quantity corresponding to the distance of the target and of a quantity corresponding to the azimuth of the target, the method performing for each received signal, arising from a radar recurrence of order n, the following steps: a step of reading a measurement of the power level of the received signal; a step of addressing the table as a function of the measurement, distance and azimuth of the target, a first power level value then being addressed; a step of extrapolating the power level of the next received signal arising from the following radar recurrence of order n+1, dependent on the first value and on a given number of values of the table addressed by sliding of addresses from the address of the first value according to the power level measurement addresses, the given number being dependent on the speed of the carrier of the reception chain, the step being applied for the received signal of order n+1, the setpoint value of the consumption being dependent at least on the extrapolation of the power level received and the position of the target.
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公开(公告)号：US09784830B2
公开(公告)日：2017-10-10
申请号：US14175620
申请日：2014-02-07
Applicant: THALES
Inventor： Patrick Garrec , Pascal Cornic , Régis Levaufre
CPC classification number: G01S13/74 , G01S7/4052 , G01S13/751 , G01S13/872 , G01S13/913 , G01S2007/4082
Abstract: A transponder, able to equip a cooperative target facing a Doppler radar, includes at least one receiving antenna able to receive a signal transmitted by said radar and a transmitting antenna able to retransmit a signal. The signal received by the receiving antenna is amplitude-modulated before being retransmitted by the transmitting antenna to produce a variation of the radar cross-section of the target, the variation triggering a frequency shift between the signal transmitted and the signal received by the radar comparable to a Doppler echo. The transponder applies notably to the field of radars, more particularly for collaborative systems also operating at low velocity or nil velocity. It applies for example to assisted take-off, landing and deck-landing of drones, in particular rotary-wing drones, as well as manned helicopters.
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公开(公告)号：US11353580B2
公开(公告)日：2022-06-07
申请号：US16708194
申请日：2019-12-09
Applicant: THALES
Inventor： Yoan Veyrac , Jérémy Inconstante , Patrick Garrec , Richard Montigny , Pascal Cornic
IPC: G01S13/935 , B64C1/36 , B64C27/04 , B64D43/00 , G01S13/00 , G08G5/00 , H01Q3/34 , H01Q21/06 , H01Q25/00
Abstract: A proximity radar method for a rotary-wing aircraft includes a sequence of phases T(k) of steps. In a first phase T(1), the electronic computer of the radar system computes unambiguous synthetic patterns on the basis of a first activated interferometric pattern M(1) of N unitary radiating groups. In the following phases T(k) of steps, executed successively in increasing order of k, the electronic computer computes synthetic patterns on the basis of interferometric patterns M(k) of rank k, wherein the N unitary radiating groups of a series deviate simultaneously in terms of azimuth and in terms of elevation as k increases, and establishes maps of rank k of the surroundings in terms of azimuth distance/direction and/or elevation distance/direction cells wherein the detected obstacle ambiguities, associated with the network lobes, are removed by virtue of the map(s) provided in the preceding phase or phases.
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