公开(公告)号：US20080266177A1

公开(公告)日：2008-10-30

申请号：US11910287

申请日：2006-03-31

Applicant: Pascal Chevalier ,  Anne Ferreol

Inventor： Pascal Chevalier ,  Anne Ferreol

IPC: G01S3/74

CPC classification number: G01S3/74 ,  G01S3/48

Abstract: Method of high-resolution direction finding to an arbitrary even order, 2q (q>2), for an array comprising N narrowband antennas each receiving the contribution from P sources characterized in that the algebraic properties of a matrix of cumulants of order 2q, C2q,x(l), whose coefficients are the circular cumulants of order 2q, Cum[xi1(t), . . . , xiq(t), xiq+1(t)*, . . . , xi2q(t)*], of the observations received on each antenna, for cumulant rankings indexed by l, are utilized to define a signal subspace and a noise subspace.

Abstract translation: 对于包含N个窄带天线的阵列的每个接收来自P源的贡献的阵列的2q（q> 2）的高分辨率方向发现的方法，其特征在于，具有2q的累积量矩阵的代数性质 2q，x（1），其系数是2q的循环累积量，Cum [xi2] 1 （t），。 。 。 （t），x i，q，q + 1，...， > （t）*，。 。 。 ，用于由l指示的累积量排序，在每个天线上接收到的观测值的x i i（t）*]被用于定义 信号子空间和噪声子空间。

公开(公告)号：US07336734B2

公开(公告)日：2008-02-26

申请号：US10814808

申请日：2004-04-01

Applicant: Anne Ferreol ,  Laurent Albera ,  Pascal Chevalier

Inventor： Anne Ferreol ,  Laurent Albera ,  Pascal Chevalier

IPC: H03D1/00

CPC classification number: G06K9/6243 ,  H03H21/0012

Abstract: A method for the fourth-order, blind identification of at least two sources in a system comprising a number of sources P and a number N or reception sensors receiving the observations, said sources having different tri-spectra. The method comprises at least the following steps: a step for the fourth-order whitening of the observations received on the reception sensors in order to orthonormalize the direction vectors of the sources in the matrices of quadricovariance of the observations used; a step for the joint diagonalizing of several whitened matrices of quadricovariance in order to identify the spatial signatures of the sources. Application to a communication network.FIG. 3 to be published.

Abstract translation: 一种用于在包括多个源P和数量N的系统中的至少两个源的四阶盲识别方法或接收观测值的接收传感器的方法，所述源具有不同的三光谱。 该方法至少包括以下步骤：用于在接收传感器上接收的观测值的四次白化的步骤，以便使所使用的观察值的二维变换矩阵中的源的方向矢量正交化; 为了识别源的空间特征，将几个变换的几个白化矩阵的联合对角化的步骤。 应用于通信网络。 “FIGREF IDREF =”Drawings“> 3 待公布。

公开(公告)号：US07940856B2

公开(公告)日：2011-05-10

申请号：US11816906

申请日：2006-02-20

Applicant: Pascal Chevalier ,  Pipon Francois ,  François Delaveau

Inventor： Pascal Chevalier ,  Pipon Francois ,  François Delaveau

IPC: H04L27/00

CPC classification number: H04L7/0054 ,  H04J3/0602 ,  H04L7/041 ,  H04L7/042

Abstract: A method of synchronizing a substantially rectilinear signal being propagated through an unknown channel, in the presence of unknown substantially rectilinear interferences, received by an array of N sensors, in which a known training sequence s(nT) is used comprising K symbols and sampled at the symbol rate T (s(nT), 0≦n≦{tilde over (K)}1), characterized in that, based on observations x((n+l/p)T) over the duration of the training sequence, where p=T/Te is an integer and Te the sampling period, a virtual observation vector X((n+l/p)T)=[x((n+l/p)T)T, x((n+l/p)T)†]T is defined, as well as a decision criterion or decision statistic taking into account the second-order non-circular nature of the interferences, by using the first and second correlation matrices of the virtual observation vector X((n+l/p)T).

Abstract translation: 一种使由N个传感器阵列接收的未知基本上直线干扰的未知信道传播的基本直线信号同步的方法，其中使用已知的训练序列s（nT），其包括K个符号，并在 符号率T（s（nT），0＆nlE; n＆nlE; {tilde over（K）} 1），其特征在于，在训练序列的持续时间内基于观察值x（（n + 1 / p）T） 其中p = T / Te是整数，Te是采样周期，虚拟观测矢量X（（n + 1 / p）T）= [x（（n + 1 / p）T）T，x（（n + 通过使用虚拟观测向量X的第一和第二相关矩阵来定义考虑到干扰的二阶非循环性质的判定标准或判定统计量， （（n + 1 / p）T）。

公开(公告)号：US07346310B2

公开(公告)日：2008-03-18

申请号：US10534523

申请日：2003-11-21

Applicant: Pascal Chevalier ,  Béatrice Col ,  Fréderique Lasnier

Inventor： Pascal Chevalier ,  Béatrice Col ,  Fréderique Lasnier

IPC: H04B7/00 ,  H04B17/00 ,  H04B1/04

CPC classification number: H04K3/224 ,  G01S7/2813 ,  G01S7/40 ,  H04K3/94 ,  H04K2203/32

Abstract: A method for the verification of anti-jamming in a communications system comprises several sensors or adaptive antennas, comprising at least the following steps: estimating the mean power π;^y of the output of the communications system, estimating the respective power values Pu or P′u, of a station u, the antenna noise Pa or P′a, the thermal noise PT, or P′T, estimating at least one of the following ratios: J tot ⁢ / ⁢ S tot = ( ∑ p = 1 P ⁢ P p ) ⁢ / ⁢ ( ∑ u = 1 U ⁢ P u ) J tot ⁢ / ⁢ S u = ( ∑ p = 1 P ⁢ P p ) ⁢ / ⁢ P u J u ⁢ / ⁢ S u = ( ∑ p = 1 P ⁢ P pu ) ⁢ / ⁢ P u comparing at least one of the three ratios with a threshold value.

公开(公告)号：US06853961B2

公开(公告)日：2005-02-08

申请号：US10221178

申请日：2001-03-16

Applicant: Pascal Chevalier ,  François Pipon

Inventor： Pascal Chevalier ,  François Pipon

IPC: G06F17/15 ,  G06K9/00 ,  G06F15/00

CPC classification number: G06F17/15 ,  G06K9/0057

Abstract: Process for estimating the correlation matrix of signals of unknown characteristics in an array of N sensor. The process determines the correlation matrix {circumflex over (R)}s of the signals of known characteristics, estimates the correlation matrix {circumflex over (R)}x of the sensor signals, forms a matrix A equal to A={circumflex over (R)}s−1/2{circumflex over (R)}x {circumflex over (R)}s−1/2 and decomposes the matrix A into eigenelements, constructs a matrix B based on the eigenelements of the matrix A, and determines the estimated correlation matrix {circumflex over (R)}b of the interfering signals based on the estimated matrix {circumflex over (R)}s and of the matrix B, such that {circumflex over (R)}b={circumflex over (R)}s1/2 B {circumflex over (R)}s1/2. Such a process may find application to antenna processing.

Abstract translation: 用于估计N个传感器阵列中未知特征信号的相关矩阵的过程。 该过程确定已知特征的信号的相关矩阵Rs，估计传感器信号的相关矩阵Rx，形成等于A = Rs <-1/2> Rx Rs <-1/2>的矩阵A，并分解 矩阵A成为特征，基于矩阵A的特征构建矩阵B，并且基于估计的矩阵Rs和矩阵B来确定干扰信号的估计的相关矩阵Rb，使得Rb = Rs <1/2 > B Rs <1/2>。 这样的处理可以应用于天线处理。

公开(公告)号：US5812090A

公开(公告)日：1998-09-22

申请号：US882831

申请日：1997-06-27

Applicant: Pascal Chevalier ,  Francois Pipon

Inventor： Pascal Chevalier ,  Francois Pipon

IPC: H04B7/08 ,  H04L7/04 ,  G01S3/16

CPC classification number: H04B7/0854 ,  H04L7/042 ,  H04B7/0851 ,  H04B7/0857 ,  H04L7/027

Abstract: The method consists in estimating the matrix of correlation R.sub.XX of the signals received on a set of N reception sensors, computing the reverse correlation matrix R.sub.XX.sup.-n, computing vectors of intercorrelation r.sub.Xd between the signals received on the set of the N sensors and a known replica signal d(k), computing a criterion of synchronization in calculating the products of the conjugate, transposed intercorrection vectors R.sub.XX.sup.-n and of the matrix of the intercorrelation vector r.sub.Xdi and comparing the value of the criterion obtained with a determined threshold value 1 to place the synchronization on the sample for which the value of the criteria exceeds the threshold value .eta.. To estimate the Doppler shift the synchronization sequence is subdivided into a determined number of sections of symbols to carry out fast Fourier transform computations on determined intercorrelation vectors in each section.

Abstract translation: 该方法在于估计在一组N个接收传感器上接收到的信号的相关值E，cir R + EE XX矩阵，计算反向相关矩阵+ E，cir R + EE XX-n，互相关的计算向量+ E，cir r + EE Xd在所述N个传感器的组合上接收的信号和已知复制信号d（k）之间，计算共轭的乘积的计算准则，转置的互补向量+ E，cir R + EE XX-n和互相关向量rXdi的矩阵，并且将获得的准则的值与确定的阈值1进行比较，以将该准则置于样本上，其中标准值超过阈值eta。 为了估计多普勒频移，同步序列被细分为确定数量的符号段，以便在每个部分中确定的相互相关矢量上执行快速傅里叶变换计算。

公开(公告)号：US20120300862A1

公开(公告)日：2012-11-29

申请号：US13508036

申请日：2010-11-03

Applicant: Pascal Chevalier ,  Florian Dupuy

Inventor： Pascal Chevalier ,  Florian Dupuy

IPC: H04L27/00

CPC classification number: H04L25/0232 ,  H04B7/0854 ,  H04L1/0668 ,  H04L27/02 ,  H04L2025/03426

Abstract: Method and system for separating a plurality of users in a communication system including two transmitter antennas and N receiver antennas, said signals transmitted by said users containing symbols an, x( ) corresponding to the vector of the envelopes of the output signals of the 1 to N receiver antennas after a shaping filtering operation, characterized in that it uses a linear mean square filter extended over an observation vector {tilde over (x)}=[x(2n−1)T x(2n)T x(2n−1)H x(2n)H]T where x(2n−1) and x(2n) correspond to the (N×1) (N≧1) observations at the symbol times 2n−1 and 2n.

Abstract translation: 用于在包括两个发射机天线和N个接收机天线的通信系统中分离多个用户的方法和系统，所述用户发送的所述信号包含与1的输出信号的包络的矢量对应的符号a，x（） N个接收机天线在整形滤波操作之后，其特征在于它使用在观测矢量上延伸的线性均方滤波器{（x）} = [x（2n-1）T x（2n）T x（2n-1） ）H x（2n）H] T其中x（2n-1）和x（2n）对应于在符号时间2n-1和2n处的（N×1）（N≥1）观测值。

公开(公告)号：US20110280293A1

公开(公告)日：2011-11-17

申请号：US12672633

申请日：2008-08-08

Applicant: Pascal Chevalier ,  François Delaveau ,  François Pipon

Inventor： Pascal Chevalier ,  François Delaveau ,  François Pipon

IPC: H04B17/00

CPC classification number: G01S7/292 ,  H04B17/27 ,  H04B17/336

Abstract: Method for measuring certain parameters of the impulse response of a propagation channel involving emitters and reflectors that are fixed or mobile, so as to detect and determine the parameters regarding the position and kinematics of these emitters and reflectors, or to auto-locate the reception system implementing the invention, in a system comprising N sensors receiving signals from said emitters or from the reflection on said reflectors, and comprising at least the following steps: determination of an ambiguity function which couples the spatial analysis and the delay-distance/Doppler-kinematic analysis, determination of at least one sufficient statistic C(l, m, K) corresponding to the correlation between the known signal s(kTe) corresponding to the complex envelope of the signal emitted and the output of a filter w(l,m) where l corresponds to a temporal assumption (delay-distance, temporal ramp, etc.) and m to a frequency assumption (Dopper-kinematic, Doppler ramp, etc.), determine the values of the pair (l, m) by comparing the value of the statistic for the pair (l, m) with a threshold value.

Abstract translation: 用于测量涉及固定或移动的发射器和反射器的传播通道的脉冲响应的某些参数的方法，以便检测和确定关于这些发射器和反射器的位置和运动学的参数，或者自动定位接收系统 在包括接收来自所述发射器的信号的N个传感器或从所述反射器上的反射的N个传感器的系统中实现本发明，并且至少包括以下步骤：确定耦合空间分析和延迟距离/多普勒运动学的模糊函数 分析，确定对应于与所发射的信号的复包络和滤波器w（l，m）的输出相对应的已知信号s（kTe）之间的相关性的至少一个足够的统计量C（l，m，K） 其中l对应于时间假设（延迟距离，时间斜坡等）和m对频率假设（Dopper-kinematic，Doppler ramp等），确定 通过将对（l，m）的统计量的值与阈值进行比较来计算对（l，m）的值。

公开(公告)号：US07091906B2

公开(公告)日：2006-08-15

申请号：US10669691

申请日：2003-09-25

Applicant: Pascal Chevalier ,  Christophe Donnet

Inventor： Pascal Chevalier ,  Christophe Donnet

IPC: G01S7/40 ,  H01Q3/22

CPC classification number: H01Q3/267 ,  H01Q3/2611 ,  H04B17/20

Abstract: A device and method for the calibration and equalization of reception chains of an antenna processing system comprises several RF chains, each associated with a radiating element, a set of sensors Ci formed out of the outputs of the preceding RF chains, a channel for the injection of a calibration signal, means to couple the calibration signal to the sensor signals and several reception-digitization chains. The device comprises at least one processor adapted to managing all the devices; a means used to adjust the value of the gain of an RF chain to a minimum value Gmin; a means for deflecting the sensors, adapted to minimizing their directivity toward the interference sources; a means adapted to adjusting the level of the injected calibration signal ST relative to the signal of the sensors, an RF chain having a gain adjusted to a minimum value Gmin.

Abstract translation: 用于天线处理系统的接收链的校准和均衡的装置和方法包括几个RF链，每个RF链与辐射元件相关联，一组由先前RF链的输出形成的传感器Ci，用于注入的通道 的校准信号的装置，用于将校准信号耦合到传感器信号和几个接收数字化链。 所述设备包括至少一个适于管理所有设备的处理器; 用于将RF链的增益值调整到最小值Gmin的手段; 用于偏转传感器的装置，适于最小化其对干扰源的方向性; 适于调整相对于传感器的信号的注入的校准信号ST的电平的装置，具有被调整到最小值Gmin的增益的RF链。

公开(公告)号：US20060046636A1

公开(公告)日：2006-03-02

申请号：US10534523

申请日：2003-11-21

Applicant: Pascal Chevalier ,  Beatrice Col ,  Frederique Lasnier

Inventor： Pascal Chevalier ,  Beatrice Col ,  Frederique Lasnier

IPC: H04K3/00

CPC classification number: H04K3/224 ,  G01S7/2813 ,  G01S7/40 ,  H04K3/94 ,  H04K2203/32

Abstract: A method for the verification of anti-jamming in a communications system comprises several sensors or adaptive antennas, comprising at least the following steps: estimating the mean power π;ˆy of the output of the communications system, estimating the respective power values Pu or P′u, of a station u, the antenna noise Pa or P′a, the thermal noise PT, or P′T, estimating at least one of the following ratios: J tot ⁢ / ⁢ S tot = ( ∑ p = 1 P ; ; P p ) ⁢ / ⁢ ( ∑ u = 1 U ; ; P u ) J tot ⁢ / ⁢ S u = ( ∑ p = 1 P ; ; P p ) ⁢ / ⁢ P u J u ⁢ / ⁢ S u = ( ∑ p = 1 P ; ; P pu ) ⁢ / ⁢ P u comparing at least one of the three ratios with a threshold value.