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：US20100061425A1

公开(公告)日：2010-03-11

申请号：US12296767

申请日：2007-04-13

Applicant: Pascal Chevalier ,  Francois Van De Wiele ,  Christophe Donnet

Inventor： Pascal Chevalier ,  Francois Van De Wiele ,  Christophe Donnet

IPC: H04B1/713

CPC classification number: H04B1/715 ,  H04B7/08 ,  H04B7/0825

Abstract: A method for fighting interference in a communication system is disclosed where the links are of frequency-hopping type. The signal has several frequency time slots. The system has at least one main sensor and one or more auxiliary sensors, one or more guard band are inserted between the useful bands of the frequency-hopping signal. The total area of the inserted guard bands is chosen so as to satisfy a chosen value of probability of interference interception. The signals of the inserted guard bands are selected whose level is greater than a given threshold. A set of spatial-filtering weightings are determined, for each time slot of the signal, by taking account of the correlation matrix of the noise plus jammers alone on the signals selected. The baseband signals of the assemblage of extended blocks are filtered by the set of calculated weightings of the time slot so as to generate extended blocks devoid of interference.

Abstract translation: 公开了一种用于消除通信系统中的干扰的方法，其中链路是跳频类型。 信号有几个频率时隙。 该系统具有至少一个主传感器和一个或多个辅助传感器，在跳频信号的有用频带之间插入一个或多个保护频带。 选择插入的保护频带的总面积以满足选择的干扰截取概率值。 选择插入的保护频带的信号，其电平大于给定的阈值。 对于信号的每个时隙，通过考虑所选择的信号上的噪声加干扰器的相关矩阵来确定一组空间滤波权重。 扩展块的组合的基带信号通过该时隙的计算加权的集合进行滤波，以便生成没有干扰的扩展块。

公开(公告)号：US08160119B2

公开(公告)日：2012-04-17

申请号：US12296767

申请日：2007-04-13

Applicant: Pascal Chevalier ,  François Van De Wiele ,  Christophe Donnet

Inventor： Pascal Chevalier ,  François Van De Wiele ,  Christophe Donnet

IPC: H04B1/00

CPC classification number: H04B1/715 ,  H04B7/08 ,  H04B7/0825

Abstract: A method of fighting interference in a frequency-hopping communication system is disclosed. The system has at least one main sensor and one or more auxiliary sensors. According to at least one embodiment, frequency-hopping signals are received. The frequency-hopping signals are arranged to include useful bands and one or more guard bands inserted between the useful bands, and a ratio of the useful bands to the guard bands being chosen according to a predetermined value of probability of interference interception. Signals of the inserted guard bands having a signal level greater than a predetermined threshold are selected. A set of spatial-filtering weightings are calculated according to a correlation matrix of noise plus jammers alone on the signals selected. Baseband signals of the received frequency-hopping signals are filtered by the set of the calculated spatial-filtering weightings.

Abstract translation: 公开了一种在跳频通信系统中抗干扰的方法。 该系统具有至少一个主传感器和一个或多个辅助传感器。 根据至少一个实施例，接收跳频信号。 跳频信号被布置为包括有用频带和插入有用频带之间的一个或多个保护频带，并且根据干扰拦截概率的预定值选择有用频带与保护频带的比率。 选择具有大于预定阈值的信号电平的插入的保护频带的信号。 根据所选择的信号上的噪声加干扰器的相关矩阵来计算一组空间滤波权重。 所接收的跳频信号的基带信号被所计算的空间滤波权重集合滤波。

公开(公告)号：US07453399B2

公开(公告)日：2008-11-18

申请号：US10428015

申请日：2003-05-02

Applicant: Anne Ferreol ,  Pascal Chevalier ,  Laurent Albera

Inventor： Anne Ferreol ,  Pascal Chevalier ,  Laurent Albera

IPC: G01S5/02 ,  G01S3/16 ,  G06F17/16

CPC classification number: G06K9/6243 ,  G06K9/0057 ,  H04B7/0848

Abstract: An antenna processing method for centered or potentially non-centered cyclostationary signals, comprises at least one step in which one or more nth order estimators are obtained from r-order statistics, with r=1 to n−1, and for one or more values of r, it comprises a step for the correction of the estimator by means of r-order detected cyclic frequencies. The method can be applied to the separation of the emitter sources of the signals received by using the estimator or estimators.

Abstract translation: 一种用于居中或潜在非中心周期平稳信号的天线处理方法，包括至少一个步骤，其中从R阶统计得到一个或多个n阶估计器，其中r = 1至n-1，以及对于一个或多个值 的r，它包括用于通过r阶检测的循环频率来校正估计器的步骤。 该方法可以应用于通过使用估计器或估计器来分离接收到的信号的发射源。

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：US07226844B2

公开(公告)日：2007-06-05

申请号：US11091950

申请日：2005-03-28

Applicant: Alain Chantre ,  Pascal Chevalier

Inventor： Alain Chantre ,  Pascal Chevalier

IPC: H01L21/331

CPC classification number: H01L29/66242 ,  H01L29/1004 ,  H01L29/7378

Abstract: A method forms a bipolar transistor in a semiconductor substrate of a first conductivity type. The method includes: forming on the substrate a single-crystal silicon-germanium layer; forming a heavily-doped single-crystal silicon layer of a second conductivity type; forming a silicon oxide layer; opening a window in the silicon oxide and silicon layers; forming on the walls of the window a silicon nitride spacer; removing the silicon-germanium layer from the bottom of the window; forming in the cavity resulting from the previous removal a heavily-doped single-crystal semiconductor layer of the second conductivity type; and forming in said window the emitter of the transistor.

Abstract translation: 一种方法在第一导电类型的半导体衬底中形成双极晶体管。 该方法包括：在衬底上形成单晶硅锗层; 形成第二导电类型的重掺杂单晶硅层; 形成氧化硅层; 在硅氧化物和硅层中开一个窗口; 在窗的壁上形成氮化硅间隔物; 从窗户的底部去除硅 - 锗层; 在先前去除的过程中形成在第二导电类型的重掺杂单晶半导体层的空腔中; 并在所述窗口中形成晶体管的发射极。

公开(公告)号：US07122879B2

公开(公告)日：2006-10-17

申请号：US10942165

申请日：2004-09-16

Applicant: Alain Chantre ,  Bertrand Martinet ,  Michel Marty ,  Pascal Chevalier

Inventor： Alain Chantre ,  Bertrand Martinet ,  Michel Marty ,  Pascal Chevalier

IPC: H01L27/02 ,  H01L29/70 ,  H01L31/11

CPC classification number: H01L29/66242 ,  H01L21/8249 ,  H01L29/0817 ,  H01L29/36 ,  H01L29/41708 ,  H01L29/42304 ,  H01L29/456 ,  H01L29/7378

Abstract: A bipolar transistor with very high dynamic performance, usable in an integrated circuit. The bipolar transistor has a single-crystal silicon emitter region with a thickness smaller than 50 nm. The base of the bipolar transistor is made of an SiGe alloy.

Abstract translation: 具有非常高动态性能的双极晶体管，可用于集成电路。 双极晶体管具有厚度小于50nm的单晶硅发射极区域。 双极晶体管的基极由SiGe合金制成。

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.