High resolution, arbitrary-even-order direction finding method and device
    1.
    发明授权
    High resolution, arbitrary-even-order direction finding method and device 有权
    高分辨率,任意偶数方向查找方法和装置

    公开(公告)号:US07969360B2

    公开(公告)日:2011-06-28

    申请号:US11910287

    申请日:2006-03-31

    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), . . . , xig(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,每个接收来自P个源的贡献的阵列的2q(q> 2)的高分辨率方向发现方法,其特征在于,序列2q,C2q的累积矩阵的代数性质 ,x(l),其系数是2q的循环累积量,Cum [xi1(t))。 。 。 ,xig(t),xiq + 1(t)*,。 。 。 ,xi2q(t)*]用于定义信号子空间和噪声子空间。

    Method for the higher-order blind identification of mixtures of sources
    2.
    发明授权
    Method for the higher-order blind identification of mixtures of sources 失效
    高级盲目识别混合源的方法

    公开(公告)号:US07079988B2

    公开(公告)日:2006-07-18

    申请号:US10813673

    申请日:2004-03-31

    CPC classification number: G06K9/6243 G06F17/12 G06F17/16 G06F17/18

    Abstract: A method for the blind identification of sources within a system having P sources and N receivers comprises at least one step for the identification of the matrix of the direction vectors of the sources from the information proper to the direction vectors ap of the sources contained redundantly in the m=2q order circular statistics of the vector of the observations received by the N receivers. Application to a communications network.

    Abstract translation: 一种用于盲目识别具有P源和N个接收机的系统内的源的方法,包括至少一个步骤,用于根据适合于方向向量的信息识别源的方向向量的矩阵, SUB的源包含N个接收器接收的观测矢量的m = 2q次循环统计信息。 应用于通信网络。

    Antenna processing method for potentially non-centered cyclostationary signals
    3.
    发明授权
    Antenna processing method for potentially non-centered cyclostationary signals 失效
    用于潜在非中心循环平稳信号的天线处理方法

    公开(公告)号:US07453399B2

    公开(公告)日:2008-11-18

    申请号:US10428015

    申请日:2003-05-02

    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。

    High Resolution, Arbitrary-Even-Order Direction Finding Method and Device
    4.
    发明申请
    High Resolution, Arbitrary-Even-Order Direction Finding Method and Device 有权
    高分辨率,任意偶数方向查找方法和设备

    公开(公告)号:US20080266177A1

    公开(公告)日:2008-10-30

    申请号:US11910287

    申请日:2006-03-31

    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。

    Method and device for the fourth-order, blind identification of an under-determined mixture of sources
    5.
    发明授权
    Method and device for the fourth-order, blind identification of an under-determined mixture of sources 失效
    方法和设备的四阶,盲目识别源的混合不足

    公开(公告)号:US07336734B2

    公开(公告)日:2008-02-26

    申请号:US10814808

    申请日:2004-04-01

    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。

    Method of manufacturing a bipolar transistor with a single-crystal base contact
    6.
    发明授权
    Method of manufacturing a bipolar transistor with a single-crystal base contact 有权
    制造具有单晶基极接触的双极晶体管的方法

    公开(公告)号:US07226844B2

    公开(公告)日:2007-06-05

    申请号:US11091950

    申请日:2005-03-28

    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。

    Method and device for synchronizing rectilinear or quasi-rectilinear links in the presence of interference
    8.
    发明授权
    Method and device for synchronizing rectilinear or quasi-rectilinear links in the presence of interference 有权
    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

    公开(公告)号:US07940856B2

    公开(公告)日:2011-05-10

    申请号:US11816906

    申请日:2006-02-20

    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≦̸ n≦̸ {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)。

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