公开(公告)号：US20130157606A1

公开(公告)日：2013-06-20

申请号：US13714103

申请日：2012-12-13

Applicant: Thales

Inventor： Vincent Chopard ,  Franck Letestu ,  Bruno Montagne

IPC: H04B1/10

CPC classification number: H04B1/10 ,  G01S19/21

Abstract: System for receiving satellite signals jammed by at least one source of interference and by a thermal noise comprising means for receiving the said satellite signals, means for filtering the said satellite signals, in order to remove the disruption from the said sources of interference. The system also comprises first means for determining a first covariance matrix of the satellite signals, adding means for adding respectively a first coefficient to at least one element of the diagonal of the said first covariance matrix in order to obtain a second covariance matrix, second means for determining, on the basis of the said second covariance matrix, second coefficients used by the said filtering means. The system also comprises means for detecting a first power of the said thermal noise, third means for dynamic determination of the value of the said first coefficients, on the basis of the first power.

Abstract translation: 用于接收由至少一个干扰源和由热噪声干扰的卫星信号的系统，包括用于接收所述卫星信号的装置，用于过滤所述卫星信号的装置，以便消除所述干扰源的干扰。 该系统还包括用于确定卫星信号的第一协方差矩阵的第一装置，用于分别将第一系数加到所述第一协方差矩阵的对角线的至少一个元素以获得第二协方差矩阵的加法装置，第二装置 用于基于所述第二协方差矩阵确定由所述滤波装置使用的第二系数。 该系统还包括用于检测所述热噪声的第一功率的装置，用于基于第一功率动态地确定所述第一系数的值的第三装置。

公开(公告)号：US20140292575A1

公开(公告)日：2014-10-02

申请号：US14226019

申请日：2014-03-26

Applicant: THALES

Inventor： Nicolas Martin ,  Jean-Michel Perre ,  Vincent Chopard

IPC: G01S19/21

CPC classification number: G01S19/21 ,  G01S19/53

Abstract: Method for formation of a signals array from a receiver (20) of signals from a satellite navigation system in order to improve the resistance to scrambling or interference, the receiver (20) being equipped with an antenna (21) having several controlled reception pattern sensors, comprising a step consisting in determining the attitude of the antenna in a TGL reference frame centred on the receiver, by iterative determination of the attitude angles of the antenna yielding the maximum of the sum of the energies of the weighted sums of the signals received by the sensors at the output of the correlators of the processing channel respectively associated with the satellites, the weighting coefficients of the weighted sums being calculated from the attitude angles considered at each iteration and from the known positions of the satellites in the TGL reference frame.

Abstract translation: 用于从卫星导航系统的信号的接收器（20）形成信号阵列的方法，以便改善抵抗加扰或干扰的能力，所述接收机（20）配备有具有多个受控接收模式传感器的天线（21） ，包括以下步骤：通过迭代确定天线的姿态角，得到所接收的信号的加权和的总和的最大值的最大值，以确定天线在以接收机为中心的TGL参考帧中的姿态 分别与卫星相关联的处理通道的相关器的输出处的传感器，根据在每次迭代中考虑的姿态角度和TGL参考帧中的卫星的已知位置计算加权和的加权系数。

公开(公告)号：US20140091966A1

公开(公告)日：2014-04-03

申请号：US13847416

申请日：2013-03-19

Applicant: THALES

Inventor： Nicolas Martin ,  Vincent Chopard ,  David Depraz

IPC: G01S19/29

CPC classification number: G01S19/29 ,  G01S19/14 ,  G01S19/24 ,  G01S19/35

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 and in demodulating the signals received by each antenna separately. The diversity of the demodulation chains is utilized to compensate the signal loss on one of the chains when the corresponding antenna experiences a signal loss due to the masking of the satellite by the carrier.

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。 本发明在于使用围绕载波的圆周设置的多个天线，并分别解调每个天线所接收的信号。 当相应的天线由于载波对卫星的掩蔽而经历信号丢失时，利用解调链的多样性来补偿一条链上的信号损耗。

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

IPC: G01S19/37 ,  G01S19/29 ,  G01S19/14 ,  G01S19/36

CPC classification number: G01S19/29 ,  G01S19/14 ,  G01S19/36

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。

公开(公告)号：US09720097B2

公开(公告)日：2017-08-01

申请号：US13847416

申请日：2013-03-19

Applicant: THALES

Inventor： Nicolas Martin ,  Vincent Chopard ,  David Depraz

IPC: G01S19/29 ,  G01S19/14 ,  G01S19/24 ,  G01S19/35

CPC classification number: G01S19/29 ,  G01S19/14 ,  G01S19/24 ,  G01S19/35

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 and in demodulating the signals received by each antenna separately. The diversity of the demodulation chains is utilized to compensate the signal loss on one of the chains when the corresponding antenna experiences a signal loss due to the masking of the satellite by the carrier.

公开(公告)号：US20140292576A1

公开(公告)日：2014-10-02

申请号：US14226049

申请日：2014-03-26

Applicant: THALES

Inventor： Nicolas Martin ,  Jean-Michel Perre ,  Vincent Chopard

IPC: G01S19/21

CPC classification number: G01S19/215

Abstract: Method for detecting signals intended as a decoy for a receiver of signals from a satellite navigation system, the receiver being equipped with an antenna using controlled reception pattern sensors, comprising the following steps consisting in, for each satellite: calculating (1) the position of the satellite in a first TGL reference frame centred on the receiver based on the position of the receiver and on the position of the satellite; determining (2) the attitude of the antenna in the first reference frame; calculating (3) first elevation and azimuthal angles of the satellite in a second reference frame linked to the antenna, starting from the position of the satellite in the first reference frame and from the attitude of the antenna in the first reference frame; determining (4) second elevation and azimuthal angles of the satellite in the second reference frame, by iterative search for a maximum of a weighted complex sum of the demodulated signals received by the antenna; calculating (5) the value of a likelihood function between the first elevation and azimuthal angles of the satellite and the second elevation and azimuthal angles of the satellite; and detecting (6) a risk of receiving decoy signals when the said value of the likelihood function is lower than a threshold.

Abstract translation: 用于检测作为来自卫星导航系统的信号接收机的诱饵的信号的方法，所述接收机配备有使用受控接收模式传感器的天线，包括以下步骤：对于每个卫星，计算（1） 基于接收机的位置和卫星的位置的第一个TGL参考帧中的卫星; 确定（2）天线在第一参考帧中的姿态; 从第一参考帧中的卫星的位置和第一参考帧中天线的姿态开始，计算（3）连接到天线的第二参考帧中的卫星的第一高程和方位角; 通过迭代搜索由天线接收的解调信号的加权复数的最大值来确定第二参考帧中卫星的第二高程和方位角; 计算（5）卫星的第一高程和方位角之间似然函数的值和卫星的第二高程和方位角; 以及当所述似然函数的所述值低于阈值时，检测（6）接收诱饵信号的风险。

公开(公告)号：US08818435B2

公开(公告)日：2014-08-26

申请号：US13714103

申请日：2012-12-13

Applicant: Thales

Inventor： Vincent Chopard ,  Franck Letestu ,  Bruno Montagne

IPC: H04B7/01 ,  G01S19/21 ,  H04B1/10

CPC classification number: H04B1/10 ,  G01S19/21

Abstract: System for receiving satellite signals jammed by at least one source of interference and by a thermal noise comprising means for receiving the said satellite signals, means for filtering the said satellite signals, in order to remove the disruption from the said sources of interference. The system also comprises first means for determining a first covariance matrix of the satellite signals, adding means for adding respectively a first coefficient to at least one element of the diagonal of the said first covariance matrix in order to obtain a second covariance matrix, second means for determining, on the basis of the said second covariance matrix, second coefficients used by the said filtering means. The system also comprises means for detecting a first power of the said thermal noise, third means for dynamic determination of the value of the said first coefficients, on the basis of the first power.

Abstract translation: 用于接收由至少一个干扰源和由热噪声干扰的卫星信号的系统，包括用于接收所述卫星信号的装置，用于过滤所述卫星信号的装置，以便消除所述干扰源的干扰。 该系统还包括用于确定卫星信号的第一协方差矩阵的第一装置，用于分别将第一系数加到所述第一协方差矩阵的对角线的至少一个元素以获得第二协方差矩阵的加法装置，第二装置 用于基于所述第二协方差矩阵确定由所述滤波装置使用的第二系数。 该系统还包括用于检测所述热噪声的第一功率的装置，用于基于第一功率动态地确定所述第一系数的值的第三装置。

公开(公告)号：US20130249735A1

公开(公告)日：2013-09-26

申请号：US13847390

申请日：2013-03-19

Applicant: THALES

Inventor： Nicolas Martin ,  Vincent Chopard ,  David Depraz

IPC: G01S19/29

CPC classification number: G01S19/29 ,  G01S19/14 ,  G01S19/36

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。