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Manner and device null of the unknown system identification by the adaptation

机译:改编后未知系统识别的方式和设备无效

摘要

PROBLEM TO BE SOLVED: To eliminate the error of a coefficient value and a tap position when a signal having strong non-steadiness is inputted by stopping coefficient update and tap position adaptive control in accordance with a comparison result between an evaluation coefficient value and a previously decided threshold. ;SOLUTION: A tap control circuit 91 containing an input signal evaluation circuit 170, receiving input signals from respective delay elements and evaluating them is provided. A step size is set to be zero, in accordance with an evaluation result in the input signal evaluation circuit 170 or stops tap position control. Namely, input signal samples are supplied to input terminals 9040-904N-1 provided for the tap control circuit 91 from the inputs and the outputs of the delay elements. The input signal samples are signals supplied to an adaptive filter. The tap control circuit 91 evaluates them and stops coefficient update and tap position update, when the evaluation result is smaller than the value previously decided.;COPYRIGHT: (C)1999,JPO
机译:解决的问题:根据评估系数值与先前的比较结果之间的比较结果,通过停止系数更新和抽头位置自适应控制来输入具有强非稳定性的信号时,消除系数值和抽头位置的误差确定的阈值。解决方案:提供了抽头控制电路91,其包括输入信号评估电路170,该电路从各个延迟元件接收输入信号并对其进行评估。根据输入信号评估电路170中的评估结果,将步长设置为零或停止抽头位置控制。即,从延迟元件的输入和输出将输入信号样本提供给为抽头控制电路91提供的输入端子904 0 -904N -1 。输入信号样本是提供给自适应滤波器的信号。当评估结果小于先前确定的值时,抽头控制电路91对其进行评估,并停止系数更新和抽头位置更新。;版权:(C)1999,JPO

著录项

  • 公开/公告号JP3180739B2

    专利类型

  • 公开/公告日2001-06-25

    原文格式PDF

  • 申请/专利权人 日本電気株式会社;

    申请/专利号JP19970306012

  • 发明设计人 杉山 昭彦;

    申请日1997-11-07

  • 分类号H04B3/23;H03H17/02;H03H21/00;

  • 国家 JP

  • 入库时间 2022-08-22 01:34:19

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