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：US20060054998A1

公开(公告)日：2006-03-16

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: H01L27/082

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

Abstract: A novel bipolar transistor with very high dynamic performances, usable in an integrated circuit. This bipolar transistor comprises 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: 一种具有非常高动态性能的新型双极晶体管，可用于集成电路。 该双极晶体管包括厚度小于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：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：US07615455B2

公开(公告)日：2009-11-10

申请号：US11523770

申请日：2006-09-19

Applicant: Pascal Chevalier ,  Alain Chantre

Inventor： Pascal Chevalier ,  Alain Chantre

IPC: H01L21/331 ,  H01L27/082

CPC classification number: H01L29/66242 ,  H01L29/0649 ,  H01L29/1004 ,  H01L29/66287 ,  H01L29/732 ,  H01L29/7378

Abstract: A bipolar transistor having a base region resting by its lower surface on a collector region and surrounded with a first insulating layer, a base contact conductive region in contact with an external upper peripheral region of the base region, a second insulating region in contact with an intermediary upper peripheral region of the base region, an emitter region in contact with the central portion of the base region. The level of the central portion is higher than the level of the intermediary portion.

Abstract translation: 一种双极晶体管，具有由集电极区域的下表面固定并被第一绝缘层包围的基极区域，与基极区域的外部上部周边区域接触的基极接触导电区域，与第一绝缘区域接触的第二绝缘区域 基极区域的中间上部周边区域，与基极区域的中心部分接触的发射极区域。 中央部分的高度高于中间部分的高度。

公开(公告)号：US20070004161A1

公开(公告)日：2007-01-04

申请号：US11516067

申请日：2006-09-06

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

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

IPC: H01L21/331

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：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.

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。