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公开(公告)号：US11181615B2
公开(公告)日：2021-11-23
申请号：US16348734
申请日：2017-11-08
Applicant: THALES
Inventor： Daniel Jahan , Jean-Michel Quellec , Jean-Paul Artis , Daniel Christien
Abstract: The invention relates to a method for testing the electromagnetic compatibility of a radar detector with at least one onboard pulse signal transmitter, wherein said radar detector and each onboard transmitter are part of the same platform, by means of eliminating the onboard component in the signals received by said radar detector, where the onboard component corresponds to the mix of the direct component and the reflected component onboard, said method comprising a training phase allowing the detected pulses to be divided into classes, grouping together the pulses for which at least two characteristics have a common range of values, and a phase of eliminating the pulses that belong to the selected classes.
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公开(公告)号：US10782387B2
公开(公告)日：2020-09-22
申请号：US16011626
申请日：2017-01-04
Applicant: THALES
Inventor： Jean-Michel Quellec , Pascal Cornic , Jean-Paul Artis
Abstract: A method including providing a replica of a signal emitted by an on-board radar, receiving by a radar detector a signal, the received signal being the sum of a first signal depending on the signal emitted by the on-board radar and a second signal independent of the signal emitted by the on-board radar, the first signal being able to be represented by a linear combination of elementary signals each having an amplitude coefficient and a delay relative to the signal emitted by the on-board radar, processing the received signal, determining the amplitude coefficients and the delays of the elementary signals of the first signal relative to the signal emitted by the on-board radar, from the provided replica and the processed received signal, and eliminating, in the processed received signal, the first signal to obtain the second signal, from the provided replica.
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公开(公告)号：US20130234878A1
公开(公告)日：2013-09-12
申请号：US13774770
申请日：2013-02-22
Applicant: THALES
Inventor： Stéphane Kemkemian , Jean-Paul Artis , Jean-Michel Quellec
CPC classification number: G01S13/06 , G01S7/285 , G01S7/2921 , G01S7/36 , G01S13/103 , G01S13/282
Abstract: A system and method of radar location comprises radar signal emission means, an emitted pulse of duration T1 and index i starting at instant T2(i); means receiving reflected radar signals; means determining correlation between reconstruction of an emitted pulse and signal received during the time interval between T2(i)+2*T1 and T2(i+1). The means determining a correlation can reconstruct a set, of at least one truncated pulse j of duration T3(j), less than T1, corresponding to the final part of said emitted pulse, said truncated pulses having increasing respective durations, determining at least one first correlated signal j by correlation of said truncated pulse j and signal received during time interval between T2(i)+T1 and T2(i)+T1+T3(j) and determining a second signal, based on first correlated signals j, by copying the time interval, of said correlated signal j, between T2(i)+T1+T3(j) and T2(i)+T1+T3(j+1), onto the time interval, of said second signal, between T2(i)+T1+T3(j) and T2(i)+T1+T3(j+1).
Abstract translation: 雷达位置的系统和方法包括雷达信号发射装置，从时刻T2（i）开始的持续时间T1和索引i的发射脉冲; 表示接收反射雷达信号; 意味着确定发射脉冲的重建与在T2（i）+ 2 * T1和T2（i + 1）之间的时间间隔期间接收到的信号之间的相关性。 确定相关性的装置可以重建与所述发射脉冲的最后部分相对应的小于T1的持续时间T3（j）的至少一个截断脉冲j的集合，所述截断脉冲具有增加的相应持续时间，确定至少一个 第一相关信号j通过所述截断脉冲j的相关和在T2（i）+ T1和T2（i）+ T1 + T3（j）之间的时间间隔期间接收的信号相关，并且基于第一相关信号j，由 将T2（i）+ T1 + T3（j）和T2（i）+ T1 + T3（j + 1）之间的所述相关信号j的时间间隔复制到所述第二信号的时间间隔T2 （i）+ T1 + T3（j）和T2（i）+ T1 + T3（j + 1）。
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公开(公告)号：US10976401B2
公开(公告)日：2021-04-13
申请号：US15764121
申请日：2016-09-27
Applicant: THALES
Inventor： Jean-Michel Quellec , Daniel Christien , Daniel Jahan
Abstract: The invention relates to a method for determining features of an electromagnetic wave received by a reception system (22), the reception system (22) comprising at least two reception channels (13), each reception channel (13) comprising an antenna (21) and a reception chain (14), each reception chain (14) being capable of delivering a value representative of the power delivered by the corresponding antenna (21) after reception of the wave by the reception system (22), the features comprising at least the direction of arrival of the received wave, the method comprising a step of providing a measurement vector, the method further comprising the following steps: comparing the measurement vector to calibration vectors, and determining features of the received wave from the result of the comparison.
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公开(公告)号：US09286667B2
公开(公告)日：2016-03-15
申请号：US14260881
申请日：2014-04-24
Applicant: THALES
Inventor： Nicolas Bon , Jean-Michel Quellec , Gabriel Marchalot
CPC classification number: G06T5/50 , G01S7/292 , G01S7/2925 , G01S13/89 , G01S13/90
Abstract: A method of eliminating spurious echoes in SAR imaging comprises a step Etp1 of defining the SAR imaging parameters, a step Etp2 of calculating the spectrum of the signal received, in each distance bin, of a zone of interest 51, a step Etp3 of filtering the spectra in each distance bin, a step Etp4 of SAR imagette 51 formation and a step Etp5 of concatenating the SAR imagettes 51 to form the final SAR image.
Abstract translation: 在SAR成像中消除杂散回波的方法包括定义SAR成像参数的步骤Etp1，计算感兴趣区域51的每个距离仓中接收到的信号的频谱的步骤Etp2，过滤 每个距离仓中的光谱，SAR图像51形成的步骤Etp4和级联SAR图像51以形成最终SAR图像的步骤Etp5。
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Patent Agency Ranking
公开(公告)号：US11280877B2
公开(公告)日：2022-03-22
申请号：US16348836
申请日：2017-11-10
Applicant: THALES
Inventor： Daniel Jahan , Jean-Michel Quellec , Jean-Paul Artis , Daniel Christien
Abstract: The invention relates to a method for testing the electromagnetic compatibility of a radar detector with at least one onboard pulse signal transmitter, wherein said radar detector and each onboard transmitter are part of the same platform, by means of eliminating the external echo component in the signals received by the radar detector, said method comprising a training phase allowing the detected pulses to be divided into classes, grouping together the pulses for which at least two characteristics have a common range of values, and a phase of eliminating the pulses that belong to the selected classes.
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公开(公告)号：US11163040B2
公开(公告)日：2021-11-02
申请号：US16349215
申请日：2017-11-10
Applicant: THALES
Inventor： Daniel Jahan , Jean-Michel Quellec , Jean-Paul Artis , Daniel Christien
Abstract: The invention relates to a method for testing the electromagnetic compatibility of a radar detector with at least one onboard pulse signal transmitter, wherein said radar detector and each onboard transmitter are part of the same platform, by means of eliminating the onboard component in the signals received by said radar detector, where the onboard component corresponds to the mix of the direct component and the reflected component onboard, said method comprising a training phase allowing the detected pulses to be divided into classes, grouping together the pulses for which at least two characteristics have a common range of values, and a phase of eliminating, the pulses that belong to the selected classes.
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公开(公告)号：US10852391B2
公开(公告)日：2020-12-01
申请号：US16074688
申请日：2017-01-30
Applicant: THALES
Inventor： Pascal Cornic , Jean-Michel Quellec , Patrick Legros
Abstract: A method for jamming airborne SAR radar implemented by a jamming device includes at least two cooperating units surrounding an area on the ground to be protected, at least two units providing a radar-detection function and at least one unit providing a radar-jamming function, each unit being interlinked by a two-way data link and being synchronized by a common clock, the method comprises a step of identifying the signals received and whether the received signals correspond to SAR signals; a step of characterizing the received SAR signal over a short duration; a step of computing a filter adapted to the signal; a step of carrying out pulse compression of the signal; a step of iteratively periodically characterizing the signal over a long duration; a step of computing the jamming signals to be transmitted; a step of transmitting the jamming signals.
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公开(公告)号：US10551488B2
公开(公告)日：2020-02-04
申请号：US15649356
申请日：2017-07-13
Applicant: THALES
Inventor： Pascal Cornic , Patrick Le Bihan , Jean-Michel Quellec
Abstract: A detection method implementing an FMCW waveform is provided, the emitted waveform is formed of a recurring pattern of given period Tr covering an emission frequency band of given width B, each pattern being divided into a given number P of sub-patterns of duration Tr/P covering an excursion frequency band ΔF=B/P, the sub-patterns being mutually spaced by a frequency interval equal to ΔF. The radar performs: a first distance-compression processing operation carrying out a low-resolution distance compression at the scale of each recurring pattern on a fraction B/P of the emission band of width B corresponding to the frequency band covered by each of the sub-patterns; a Doppler processing operation on a given number N of successive recurrences so as to form P ambiguous distance-Doppler maps of low distance resolution, the maps being segmented into various speed domains; a second distance-compression processing operation of resolution that differs depending on the speed domain to which the relative speed of the target with respect to the radar belongs.
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公开(公告)号：US09035824B2
公开(公告)日：2015-05-19
申请号：US13774770
申请日：2013-02-22
Applicant: Thales
Inventor： Stéphane Kemkemian , Jean-Paul Artis , Jean-Michel Quellec
CPC classification number: G01S13/06 , G01S7/285 , G01S7/2921 , G01S7/36 , G01S13/103 , G01S13/282
Abstract: A system and method of radar location comprises radar signal emission means, an emitted pulse of duration T1 and index i starting at instant T2(i); means receiving reflected radar signals; means determining correlation between reconstruction of an emitted pulse and signal received during the time interval between T2(i)+2*T1 and T2(i+1). The means determining a correlation can reconstruct a set, of at least one truncated pulse j of duration T3(j), less than T1, corresponding to the final part of said emitted pulse, said truncated pulses having increasing respective durations, determining at least one first correlated signal j by correlation of said truncated pulse j and signal received during time interval between T2(i)+T1 and T2(i)+T1+T3(j) and determining a second signal, based on first correlated signals j, by copying the time interval, of said correlated signal j, between T2(i)+T1+T3(j) and T2(i)+T1+T3(j+1), onto the time interval, of said second signal, between T2(i)+T1+T3(j) and T2(i)+T1+T3(j+1).
Abstract translation: 雷达位置的系统和方法包括雷达信号发射装置，从时刻T2（i）开始的持续时间T1和索引i的发射脉冲; 表示接收反射雷达信号; 意味着确定发射脉冲的重建与在T2（i）+ 2 * T1和T2（i + 1）之间的时间间隔期间接收到的信号之间的相关性。 确定相关性的装置可以重建与所述发射脉冲的最后部分相对应的小于T1的持续时间T3（j）的至少一个截断脉冲j的集合，所述截断脉冲具有增加的相应持续时间，确定至少一个 第一相关信号j通过所述截断脉冲j的相关和在T2（i）+ T1和T2（i）+ T1 + T3（j）之间的时间间隔期间接收的信号相关，并且基于第一相关信号j由第 将T2（i）+ T1 + T3（j）和T2（i）+ T1 + T3（j + 1）之间的所述相关信号j的时间间隔复制到所述第二信号的时间间隔T2 （i）+ T1 + T3（j）和T2（i）+ T1 + T3（j + 1）。
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