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11.发明授权Device for receiving radio-navigation signals with multiple antennas and common synchronization slaving 有权用于接收具有多个天线的无线电导航信号和通用同步从属设备公开(公告)号：US09500749B2
公开(公告)日：2016-11-22
申请号：US13847390
申请日：2013-03-19
Applicant: THALES
Inventor： Nicolas Martin , Vincent Chopard , David Depraz
Abstract: The invention relates to a device for receiving satellite radio-navigation signals comprising a plurality of receiving antennas forming an antenna array. The invention consists in using a plurality of antennas disposed around the circumference of a carrier, in demodulating the signals received by each antenna separately and then in combining the various demodulated signals, thereby amounting to effecting a beam forming in an equivalent antenna pattern. The invention then requires only a single synchronization slaving for the set of demodulation pathways.
Abstract translation: 本发明涉及一种用于接收包括形成天线阵列的多个接收天线的卫星无线电导航信号的装置。 本发明在于使用设置在载体周围的多个天线，分别解调由每个天线接收的信号，然后组合各种解调信号，从而实现以等效天线方向图形成波束形成。 因此，本发明仅需要用于该组解调路径的单个同步从动。
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公开(公告)号：US10670733B2
公开(公告)日：2020-06-02
申请号：US15465151
申请日：2017-03-21
Applicant: Thales
Inventor： Nicolas Martin , Denis Bouvet , Hervé Guichon
Abstract: The invention concerns a satellite geopositioning method on the basis of satellites each transmitting dual-frequency signals. The method comprises, for each satellite, a step of computation of four pseudo-distances on the basis of the two codes and the two carriers of the received dual-frequency geopositioning signals, a step of correction of the ionospheric delays over each computed pseudo-distance by applying an ionospheric error propagation model, a step of carrier code smoothing using a Kalman filter in order to provide a pseudo-distance measurement without measurement noise and to correct the residual ionospheric error. The position is estimated by using the corrected pseudo-distances computed for each satellite.
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Patent Agency Ranking
公开(公告)号：US10484029B2
公开(公告)日：2019-11-19
申请号：US16222998
申请日：2018-12-17
Applicant: THALES
Inventor： Nicolas Martin , Jean-Michel Perre , Nicolas Bastien
Abstract: A receiver of signals likely to be disturbed by an interfering signal, the receiver includes an interference rejection filter comprising a multiplying gain applied respectively to an in-phase channel and an in-quadrature channel of a signal received by the receiver, the value of the multiplying gain being determined by a nonlinear function Ki(ρ) of the modulus ρ of the received signal, the function Ki(ρ) being determined so as to maximize the signal-to-noise ratio after application of the multiplying gain and demodulation of the received signal.
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公开(公告)号：US20170276799A1
公开(公告)日：2017-09-28
申请号：US15465151
申请日：2017-03-21
Applicant: Thales
Inventor： Nicolas Martin , Denis Bouvet , Hervé Guichon
Abstract: The invention concerns a satellite geopositioning method on the basis of satellites each transmitting dual-frequency signals. The method comprises, for each satellite, a step of computation of four pseudo-distances on the basis of the two codes and the two carriers of the received dual-frequency geopositioning signals, a step of correction of the ionospheric delays over each computed pseudo-distance by applying an ionospheric error propagation model, a step of carrier code smoothing using a Kalman filter in order to provide a pseudo-distance measurement without measurement noise and to correct the residual ionospheric error. The position is estimated by using the corrected pseudo-distances computed for each satellite.
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公开(公告)号：US09435890B2
公开(公告)日：2016-09-06
申请号：US13852744
申请日：2013-03-28
Applicant: THALES
Inventor： Xavier Lacondemine , Nicolas Martin , Jean-Pierre Schlotterbeck , Gregory Baral-Baron
Abstract: An anemometry system comprising a laser source supplying an incident beam that is backscattered by passing through the incident beam mixing means for mixing the backscattered beam and a reference beam, creating an interferometry wave conversion means, converting the interferometry wave into an electrical signal proportional to the power of said wave first determination means, for determining a time-frequency diagram of said electrical signal. The system also comprises second determination means for determining spots of said diagram, each spot being a set of connected points of said diagram, having exceeded a detection threshold computation means for computing an average of the frequency, a duration and a slope characterizing the trend of the frequency as a function of time in the time-frequency diagram, and determination means 107 for determining the air speed from all or part of said averages of the frequency, said durations and said slopes.
Abstract translation: 一种风速测量系统，包括提供通过穿过入射光束混合装置反向散射的入射光束的激光源，用于混合后向散射光束和参考光束，产生干涉测量波转换装置，将干涉测量波转换成与 所述波第一确定装置的功率用于确定所述电信号的时间 - 频率图。 该系统还包括用于确定所述图的点的第二确定装置，每个点是所述图的一组连接点，已经超过检测阈值计算装置，用于计算频率的平均值，持续时间和斜率， 在时间频率图中作为时间的函数的频率，以及用于从频率，所述持续时间和所述斜率的所有或部分所述平均值确定空气速度的确定装置107。
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公开(公告)号：US20160231348A1
公开(公告)日：2016-08-11
申请号：US13852744
申请日：2013-03-28
Applicant: Thales
Inventor： Xavier Lacondemine , Nicolas Martin , Jean-Pierre Schlotterbeck , Gregory Baral-Baron
IPC: G01P5/26
Abstract: An anemometry system comprising a laser source supplying an incident beam that is backscattered by passing through the incident beam mixing means for mixing the backscattered beam and a reference beam, creating an interferometry wave conversion means, converting the interferometry wave into an electrical signal proportional to the power of said wave first determination means, for determining a time-frequency diagram of said electrical signal. The system also comprises second determination means for determining spots of said diagram, each spot being a set of connected points of said diagram, having exceeded a detection threshold computation means for computing an average of the frequency, a duration and a slope characterizing the trend of the frequency as a function of time in the time-frequency diagram, and determination means 107 for determining the air speed from all or part of said averages of the frequency, said durations and said slopes.
Abstract translation: 一种风速测量系统，包括提供通过穿过入射光束混合装置反向散射的入射光束的激光源，用于混合后向散射光束和参考光束，产生干涉测量波转换装置，将干涉测量波转换成与 所述波第一确定装置的功率用于确定所述电信号的时间 - 频率图。 该系统还包括用于确定所述图的点的第二确定装置，每个点是所述图的一组连接点，已经超过检测阈值计算装置，用于计算频率的平均值，持续时间和斜率， 在时间频率图中作为时间的函数的频率，以及用于从频率，所述持续时间和所述斜率的所有或部分所述平均值确定空气速度的确定装置107。
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公开(公告)号：US20130090078A1
公开(公告)日：2013-04-11
申请号：US13627889
申请日：2012-09-26
Applicant: Thales
Inventor： Nicolas Martin , Franck Letestu , Bruno Montagne
CPC classification number: G01S19/21
Abstract: Method and system for locating sources interfering on a signal received by a receiver comprising an array of antennas, comprising the following steps: a step of calculating the spatio-temporal intercorrelation matrix Rxx, a step of subdividing the useful band of the said signals into sub-bands (b), for each sub-band (b), a step of calculating the spatial intercorrelation matrix R(b) associated with the sub-band (b) and of calculating at least one of its eigenvalues {λ1, λ2, . . . λM}, a step of detecting interference with the aid of the following detection criterion: log ( ( ∑ m = k M λ m ) / ( M - k + 1 ) ) - log ( ∏ m = k M λ m ) / ( M - k + 1 ) > threshold , a step of determining the eigenvectors {U1, U2, . . . UN} of the spatial intercorrelation matrix R(b), a step of determining the directions of arrival of the interfering sources by searching for the vectors of relative gains belonging to the said interference sub-space or which are orthogonal to the orthogonal noise sub-space and complementary to the interference sub-space.
Abstract translation: 用于定位干扰由包括天线阵列的接收机接收的信号的源的方法和系统，包括以下步骤：计算时空相关矩阵Rxx的步骤，将所述信号的有用频带细分为子信号的步骤 （b），对于每个子带（b），计算与子带（b）相关联的空间相关矩阵R（b）并计算其特征值中的至少一个{λ1，λ2， 。 。 。 λM}，借助于以下检测标准来检测干扰的步骤：log（（m m = k Mmλm）/ M（k-1））-log（Πm = k M （M-k + 1）>阈值，确定特征向量{U1，U2，...， 。 。 UN}的空间相关矩阵R（b）的步骤，通过搜索属于所述干扰子空间的相关增益的矢量或正交于正交噪声子空间的相关增益的向量来确定干扰源的到达方向的步骤 空间与干扰子空间互补。
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