Method for estimating a correlation matrix of interfering signals received through a sensor array
    12.
    发明授权
    Method for estimating a correlation matrix of interfering signals received through a sensor array 失效
    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

    公开(公告)号:US06853961B2

    公开(公告)日:2005-02-08

    申请号:US10221178

    申请日:2001-03-16

    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。

    Method and device enabling a modem to be synchronized with an RF digital
data transmitter in the presence of jammers
    13.
    发明授权
    Method and device enabling a modem to be synchronized with an RF digital data transmitter in the presence of jammers 失效
    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

    公开(公告)号:US5812090A

    公开(公告)日:1998-09-22

    申请号:US882831

    申请日:1997-06-27

    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。

    METHOD AND DEVICE FOR MONO- AND MULTI-ANTENNA RECEPTION FOR ALAMOUTI-TYPE LINKS
    14.
    发明申请
    METHOD AND DEVICE FOR MONO- AND MULTI-ANTENNA RECEPTION FOR ALAMOUTI-TYPE LINKS 失效
    单向和多天线接收方法和装置

    公开(公告)号:US20120300862A1

    公开(公告)日:2012-11-29

    申请号:US13508036

    申请日:2010-11-03

    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。

    Methods and Devices for Determining the Impulse Response of Propagation Channels Involving Emitters, Reflectors and Sensors that are Fixed or Mobile
    15.
    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 有权
    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

    公开(公告)号:US20110280293A1

    公开(公告)日:2011-11-17

    申请号:US12672633

    申请日:2008-08-08

    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。

    Integrated circuit bipolar transistor
    16.
    发明授权
    Integrated circuit bipolar transistor 有权
    集成电路双极晶体管

    公开(公告)号:US07615455B2

    公开(公告)日:2009-11-10

    申请号:US11523770

    申请日:2006-09-19

    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。

    Radiogoniometry method and device co-operating in transmission
    19.
    发明授权
    Radiogoniometry method and device co-operating in transmission 有权
    无线电通测量方法和设备在传输中协同工作

    公开(公告)号:US06239746B1

    公开(公告)日:2001-05-29

    申请号:US09445029

    申请日:1999-12-03

    CPC classification number: G01S3/043 G01S3/74 H04W16/24

    Abstract: A process and device related to multisensor radio direction finding receivers usable in radio communication systems including several emission sources. The process and device isolate the contribution of each emission source in sensor signals so as to perform direction finding on a single emission source only, based on learning sequences inserted into waveforms emitted by each of the emission sources. Such a process and device may find particular application to cellular communication networks.

    Abstract translation: 涉及可用于包括若干发射源的无线电通信系统中的多传感器无线电测向接收机的过程和设备。 该过程和设备隔离传感器信号中每个发射源的贡献,以便仅基于插入每个发射源发射的波形的学习顺序在单个发射源上执行方向测量。 这样的过程和设备可以发现蜂窝通信网络的特定应用。

    Methods and devices for determining the impulse response of propagation channels involving emitters, reflectors and sensors that are fixed or mobile
    20.
    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 有权
    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

    公开(公告)号:US08559491B2

    公开(公告)日:2013-10-15

    申请号:US12672633

    申请日:2008-08-08

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

    Abstract: 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.

    Abstract translation: 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。

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