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    • 1. 发明申请
    • Methods and Devices for Determining the Impulse Response of Propagation Channels Involving Emitters, Reflectors and Sensors that are Fixed or Mobile
    • 用于确定涉及固定或移动的发射器,反射器和传感器的传播通道的脉冲响应的方法和装置
    • US20110280293A1
    • 2011-11-17
    • US12672633
    • 2008-08-08
    • Pascal ChevalierFrançois DelaveauFrançois Pipon
    • Pascal ChevalierFrançois DelaveauFrançois Pipon
    • H04B17/00
    • G01S7/292H04B17/27H04B17/336
    • 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.
    • 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。
    • 3. 发明授权
    • Methods and devices for determining the impulse response of propagation channels involving emitters, reflectors and sensors that are fixed or mobile
    • 用于确定涉及发射器,反射器和固定或移动的传感器的传播通道的脉冲响应的方法和装置
    • US08559491B2
    • 2013-10-15
    • US12672633
    • 2008-08-08
    • Pascal ChevalierFrançois DelaveauFrançois Pipon
    • Pascal ChevalierFrançois DelaveauFrançois Pipon
    • H04B17/00
    • G01S7/292H04B17/27H04B17/336
    • A method for measuring certain parameters of the impulse response of a propagation channel involving emitters and reflectors that are fixed or mobile, and for detecting and determining the parameters regarding the position and kinematics of the emitters and reflectors, or for auto-locating the reception system implementing the invention, in a system comprising N sensors receiving signals from the emitters or from the reflection on the reflectors. The method determines an ambiguity function which couples the spatial analysis and the delay-distance/Doppler-kinematic analysis, and determines at least one sufficient statistic Ĉ(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 and m corresponds to a frequency assumption. The method also determines the values of the pair (l,m) by comparing the value of the statistic for the pair (l,m) with a threshold value.
    • 一种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,以及用于检测和确定关于发射器和反射器的位置和运动学的参数,或用于自动定位接收系统 在包括从发射器接收信号的N个传感器或反射器上的反射的系统中实现本发明。 该方法确定耦合空间分析和延迟距离/多普勒运动学分析的模糊函数,并且确定对应于已知信号s(kTe)对应的相关性的至少一个足够的统计量C(1,m,K) 到发射信号的复包络和滤波器w(l,m)的输出,其中l对应于时间假设,m对应于频率假设。 该方法还通过将对(l,m)的统计量的值与阈值进行比较来确定对(l,m)的值。
    • 4. 发明授权
    • Method and device for space division multiplexing of radio signals transmitted in cellular radio communications
    • 用于在蜂窝无线电通信中传输的无线电信号的空分复用的方法和装置
    • US06240098B1
    • 2001-05-29
    • US09011477
    • 1998-02-20
    • Joël ThibaultPascal ChevalierFrançois PiponJean-Jacques MonotGilbert Multedo
    • Joël ThibaultPascal ChevalierFrançois PiponJean-Jacques MonotGilbert Multedo
    • H04Q700
    • H04W88/08H04B7/04H04B7/0617H04B7/086
    • A method and apparatus for spatial multiplexing and demultiplexing of radio signals. A multichannel transmitter and receiver is integrated in a base station and coupled to an antenna array. Using digital radio signals containing previously known or non-Gaussian sequences and arranged in frames, the spatial information about each mobile unit is estimated on the basis of the signal received by the receiver for the reception and transmission frequencies. This is done by known sequences or by blind source separation methods. The respective paths of each mobile unit with the power above a predetermined threshold is isolated by spatial filtering in the presence of multiple channel paths in order to provide spatial demultiplexing. Simultaneously, the intended signal is transmitted in the direction of the main path of each mobile unit while protecting each mobile unit from signals transmitted in the direction of other mobile units by spatial filtering with cancelling constraints in order to provide spatial multiplexing.
    • 一种用于无线电信号的空间复用和解复用的方法和装置。 多通道发射机和接收机集成在基站中并耦合到天线阵列。 使用包含先前已知的或非高斯序列并且被布置在帧中的数字无线电信号,基于由接收机接收的用于接收和发送频率的信号来估计关于每个移动单元的空间信息。 这是通过已知的序列或通过盲源分离方法完成的。 具有高于预定阈值的功率的每个移动单元的相应路径在存在多个信道路径的情况下通过空间滤波来隔离,以便提供空间解复用。 同时,在每个移动单元的主路径的方向上发送预期信号,同时通过具有消除约束的空间滤波来保护每个移动单元不受其它移动单元的方向的信号的影响,以提供空间复用。
    • 5. 发明授权
    • Method for estimating a correlation matrix of interfering signals received through a sensor array
    • 用于估计通过传感器阵列接收的干扰信号的相关矩阵的方法
    • US06853961B2
    • 2005-02-08
    • US10221178
    • 2001-03-16
    • Pascal ChevalierFrançois Pipon
    • Pascal ChevalierFrançois Pipon
    • G06F17/15G06K9/00G06F15/00
    • G06F17/15G06K9/0057
    • 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.
    • 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。
    • 6. 发明授权
    • Method and device for synchronizing rectilinear or quasi-rectilinear links in the presence of interference
    • 在存在干扰的情况下使直线或准直线链路同步的方法和装置
    • US07940856B2
    • 2011-05-10
    • US11816906
    • 2006-02-20
    • Pascal ChevalierPipon FrancoisFrançois Delaveau
    • Pascal ChevalierPipon FrancoisFrançois Delaveau
    • H04L27/00
    • H04L7/0054H04J3/0602H04L7/041H04L7/042
    • 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).
    • 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)。
    • 9. 发明授权
    • Method and device enabling a modem to be synchronized with an RF digital
data transmitter in the presence of jammers
    • 在存在干扰的情况下使调制解调器能够与RF数字数据发射机同步的方法和装置
    • US5812090A
    • 1998-09-22
    • US882831
    • 1997-06-27
    • Pascal ChevalierFrancois Pipon
    • Pascal ChevalierFrancois Pipon
    • H04B7/08H04L7/04G01S3/16
    • H04B7/0854H04L7/042H04B7/0851H04B7/0857H04L7/027
    • 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.
    • 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。