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    NONLINEAR SIGNAL FILTERING
    2.
    发明申请
    NONLINEAR SIGNAL FILTERING 审中-公开

    公开(公告)号：US20190207589A1

    公开(公告)日：2019-07-04

    申请号：US16298888

    申请日：2019-03-11

    申请人： Apsidon, Inc.

    发明人： Nikola Alic ,  Eduardo Temprana Giraldo

    IPC分类号： H03H21/00 ,  H04L25/03 ,  H04B10/58

    CPC分类号： H03H21/0016 ,  H03H21/0023 ,  H03H2021/0079 ,  H03H2021/0087 ,  H04B10/58 ,  H04L25/03012 ,  H04L25/03127 ,  H04L2025/03477

    摘要： In a nonlinear signal filtering system, a signal having a series of signal samples is filtered. The signal samples are affected by interactions with adjacent signal samples and nonlinear distortions. The system contains a series of alternating linear system elements and nonlinear system elements that are used for mitigation of distortion resulting from the nonlinear distortions with memory effects. The linear system elements can scale each signal sample in the series of signal samples by scaling parameters and sums a plurality of consecutive scaled signal samples, and the nonlinear system elements can transform the output of the linear system elements according to instantaneous nonlinear functions.

    METHOD OF COMBATTING INTERFERENCE BY SPATIAL FILTERING OR SPATIO-TEMPORAL FILTERING IN A MULTI-CHANNEL RECEIVER
    3.
    发明申请
    METHOD OF COMBATTING INTERFERENCE BY SPATIAL FILTERING OR SPATIO-TEMPORAL FILTERING IN A MULTI-CHANNEL RECEIVER 审中-公开

    公开(公告)号：US20180191382A1

    公开(公告)日：2018-07-05

    申请号：US15853148

    申请日：2017-12-22

    申请人： THALES

    发明人： François PIPON

    IPC分类号： H04B1/00 ,  H04B7/08

    CPC分类号： H04B1/005 ,  H04B1/1081 ,  H04B7/0851 ,  H04B7/086 ,  H04B7/0891 ,  H04L25/0204 ,  H04L25/0224 ,  H04L25/03031 ,  H04L2025/03477

    摘要： A method for receiving a signal and for rejecting interference in a multichannel receiver, comprises the steps of: reception, transposition and discretization of the signal received on each of the channels of the receiver, so as to obtain a discretized multichannel signal, synchronization of the discretized multichannel signal, computation, on the basis of the discretized and synchronized multichannel signal, of a matrix {circumflex over (R)} of correlation of the total noise, computation, on the basis of the matrix {circumflex over (R)} of correlation of the total noise, of a vector w comprising amplitude phase weighting coefficients of a multichannel filter, and application, to the discretized and synchronized multichannel signal, of a multichannel filtering processing on the basis of the vector w, and then of a single-channel equalization processing to the filtered signal.

    ELECTRICAL DISPERSION COMPENSATOR AND TAP COEFFICIENT CALCULATION METHOD SUITABLY APPLICABLE THERETO
    5.
    发明申请
    ELECTRICAL DISPERSION COMPENSATOR AND TAP COEFFICIENT CALCULATION METHOD SUITABLY APPLICABLE THERETO 有权
    电分散补偿器和贴片系统计算方法适用于

    公开(公告)号：US20150365262A1

    公开(公告)日：2015-12-17

    申请号：US14711229

    申请日：2015-05-13

    申请人： Oki Electric Industry Co., Ltd.

    发明人： Hideyuki IWAMURA

    IPC分类号： H04L25/03

    CPC分类号： H04L25/03878 ,  H04B10/6971 ,  H04L25/03019 ,  H04L2025/03477

    摘要： There is provided an apparatus allowing waveform shaping even at a low sampling rate, and including a sampling unit 20, an equalizing unit 30, a tap coefficient calculating unit 40, a delay adjusting unit 80, a peak monitoring unit 60, and a timing value extracting unit 70. The timing value extracting unit 70 instructs magnitude of a delay to the delay adjusting unit, and from a plurality of sets of the magnitude of the delay given by the delay adjusting unit and maximum values of output signal intensity acquired by the peak monitoring unit, acquires the magnitude of a delay where the maximum value of the output signal intensity becomes maximum, as a delay suitable amount, and notifies the delay adjusting unit of the delay suitable amount.

    摘要翻译： 提供了即使以低采样率进行波形整形的装置，并且包括采样单元20，均衡单元30，抽头系数计算单元40，延迟调整单元80，峰值监视单元60和定时值 提取单元70.定时值提取单元70指示延迟调整单元的延迟的大小，以及由延迟调整单元给出的延迟幅度的多组和由峰值获取的输出信号强度的最大值 监视单元获取输出信号强度的最大值变为最大的延迟的大小作为延迟适当量，并将延迟适当量通知延迟调整单元。

    Symmetric leakage for adaptive finite-impulse-response filters
    7.
    发明授权
    Symmetric leakage for adaptive finite-impulse-response filters 有权
    自适应有限脉冲响应滤波器的对称泄漏

    公开(公告)号：US08634455B2

    公开(公告)日：2014-01-21

    申请号：US13438075

    申请日：2012-04-03

    申请人： Dale D. Harman

    发明人： Dale D. Harman

    IPC分类号： H03H7/30

    CPC分类号： H03H21/0012 ,  H03H2021/0072 ,  H04L25/03038 ,  H04L2025/03477 ,  H04L2025/03605

    摘要： An adaptive finite-impulse-response filter includes a series of taps; each tap has a corresponding value of tap coefficient. Values of tap coefficients are calculated to minimize a system error function. The solution is under-constrained, and some values of tap coefficients can grow and cause overflow errors. Growth of tap coefficients is controlled by introducing tap leakage. Disclosed is a symmetric leakage algorithm, in which an updated value of the tap coefficient of a particular tap is based on the old value of the tap coefficient of the particular tap, on the old values of the tap coefficients of a set of taps preceding the particular tap, and on the old values of the tap coefficients of a series of taps following the particular tap.

    摘要翻译： 自适应有限脉冲响应滤波器包括一系列抽头; 每个水龙头具有抽头系数的对应值。 计算抽头系数的值以最小化系统误差函数。 解决方案是受限制的，抽头系数的一些值可能会增加并导致溢出错误。 抽头系数的增长通过引入抽头泄漏来控制。 公开了一种对称泄漏算法，其中特定抽头的抽头系数的更新值基于特定抽头的抽头系数的旧值对先前的一组抽头的抽头系数的旧值 特定点击，以及特定抽头之后的一系列抽头的抽头系数的旧值。

    Low power and low complexity adaptive self-linearization
    9.
    发明授权
    Low power and low complexity adaptive self-linearization 失效
    低功耗和低复杂度的自适应自适应线性化

    公开(公告)号：US08620981B2

    公开(公告)日：2013-12-31

    申请号：US13220504

    申请日：2011-08-29

    申请人： Roy G. Batruni

    发明人： Roy G. Batruni

    IPC分类号： G06F17/10

    CPC分类号： H04L25/03038 ,  H04L2025/03477 ,  H04L2025/03484

    摘要： A digital signal processing system comprising: an input terminal to receive an input signal that includes a distorted component and an undistorted component, the input signal having a sampling rate of R; and an adaptive self-linearization module coupled to the input terminal, to perform self-linearization based at least in part on the input signal to obtain an output signal that is substantially undistorted, wherein: the adaptive self-linearization module is to generate a replica distortion signal that is substantially similar to the distorted component, the generation being based at least in part on a target component having a sampling rate of R/L, L being an integer greater than 1; the adaptive self-linearization module includes a first digital signal processor (DSP) that is adapted to obtain a filter transfer function that approximates a system distortion transfer function, and a second DSP that is configured using configuration parameters of the first DSP.

    摘要翻译： 一种数字信号处理系统，包括：输入端，用于接收包括失真分量和未失真分量的输入信号，所述输入信号具有采样率R; 以及耦合到所述输入端子的自适应自线性化模块，至少部分地基于所述输入信号执行自线性化，以获得基本上未失真的输出信号，其中：所述自适应自线性化模块要生成副本 所述失真信号基本上类似于失真分量，所述产生至少部分地基于具有R / L的采样率的目标分量，L是大于1的整数; 自适应自线性化模块包括适于获得逼近系统失真传递函数的滤波器传递函数的第一数字信号处理器（DSP）和使用第一DSP的配置参数配置的第二DSP。