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：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

IPC: H04B17/00 ,  H04B7/08

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。

公开(公告)号：US20180100930A1

公开(公告)日：2018-04-12

申请号：US15715185

申请日：2017-09-26

Applicant: Thales

Inventor： Stéphane Corazza ,  Bruno Montagne ,  Denis Bouvet

IPC: G01S19/21

Abstract: A module making it possible to detect a disturbance signal during initial receiving by a receiver of navigation information, the receiver including a plurality of elementary antennas able to receive, in a plurality of arrival directions, electromagnetic signals including navigation information, a forming unit able to form a resultant signal from the electromagnetic signals and a processing unit able to process the resultant signal, the detection module being integrated into the forming unit and able to receive the electromagnetic signals coming from each of the elementary antennas, analyze the signals and detect a disturbance signal when the receiver is started cold in case of detection of a favored arrival direction of some of the electromagnetic signals.

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：US10520604B2

公开(公告)日：2019-12-31

申请号：US15715185

申请日：2017-09-26

Applicant: Thales

Inventor： Stéphane Corazza ,  Bruno Montagne ,  Denis Bouvet

IPC: G01S19/21 ,  G01S19/36 ,  H04B1/10 ,  G01S19/05 ,  G01S19/20 ,  G01S19/22 ,  H04B1/709

Abstract: A module making it possible to detect a disturbance signal during initial receiving by a receiver of navigation information, the receiver including a plurality of elementary antennas able to receive, in a plurality of arrival directions, electromagnetic signals including navigation information, a forming unit able to form a resultant signal from the electromagnetic signals and a processing unit able to process the resultant signal, the detection module being integrated into the forming unit and able to receive the electromagnetic signals coming from each of the elementary antennas, analyze the signals and detect a disturbance signal when the receiver is started cold in case of detection of a favored arrival direction of some of the electromagnetic signals.

公开(公告)号：US09977130B2

公开(公告)日：2018-05-22

申请号：US14918795

申请日：2015-10-21

Applicant: THALES

Inventor： Stéphane Corazza ,  Stéphane Rollet ,  Laurent Papin ,  Audrey Guilloton ,  Bruno Montagne

IPC: G01S19/21 ,  G01S19/20 ,  G01S19/41

CPC classification number: G01S19/215 ,  G01S19/20 ,  G01S19/41

Abstract: The invention relates to a disruption detection method and device for a positioning measurement correction message of a satellite geolocation device, able to receive a composite radio signal including a plurality of signals each emitted by a satellite in view of the geolocation device, and a positioning measurement differential correction message (MC) emitted by a satellite geolocation precision augmentation system. The device (20) according to the invention includes modules (32) computing, for each of the satellites in view, at least one differential correction coherence metric depending on a positioning measurement differential correction (CAS) extracted from the received differential correction message (MC). The device (20) also includes a module (34) detecting a disruption of the correction message when the number of satellites for which the differential correction coherence metric is above a predetermined threshold exceeds a predetermined number of satellites (N0), strictly greater than one.

公开(公告)号：US08655298B2

公开(公告)日：2014-02-18

申请号：US13627889

申请日：2012-09-26

Applicant: Thales

Inventor： Nicolas Martin ,  Franck Leteshi ,  Bruno Montagne

IPC: H04B1/10

CPC classification number: G01S19/21

Abstract: A technique for locating sources interfering on a signal received by a receiver comprising an array of antennas calculates a spatio-temporal intercorrelation matrix Rxx, subdivides the useful band of the signals into sub-bands (b), and for each sub-band (b), calculates the spatial intercorrelation matrix R(b) associated with the sub-band (b) and calculates at least one of its eigenvalues {λ1, λ2, . . . λM}. Interference in the sub-band is detected 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 , and determining the eigenvectors {U1, U2, . . . UN} of the spatial intercorrelation matrix R(b), and 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技术计算时空相关矩阵Rxx，将信号的有用频带细分为子带（b），并将每个子带（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{λ1，λ2，...中的至少一个。 。 。 lambdaM}。 借助于以下检测标准检测子带中的干扰：log⁡（（Σm = k Mλm）/（M-k + 1））-log⁡（Πm = k M λm）/（M-k + 1）>阈值，并且确定特征向量{U1，U2，...， 。 。 UN}，并且通过搜索属于所述干扰子空间的或与正交噪声子空间正交的相对增益的向量来确定干扰源的到达方向，以及 与干扰子空间互补。