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Method for removing pseudo signal and program for removing pseudo signal

机译:去除伪信号的方法和去除伪信号的程序

摘要

A method removes a pseudo signal from the main signal. An integrated original signal is derived by integrating the original signal with respect to time, and then, is decomposed into the sum of one Approximation and at least one Detail by wavelet transformation. The wavelet transformation is executed with deepening the level number until the level number reaches to the threshold level number at which the ratio of the energy of the one Approximation to the energy of the original signal has a predetermined relationship with a predetermined threshold value. The Approximation at the threshold level number as a pseudo signal component is approximated to zero, and the Approximation and Detail up to said threshold level number are reconstituted by wavelet inverse transformation.
机译:一种方法从主信号中去除伪信号。通过相对于时间对原始信号进行积分来导出积分的原始信号,然后通过小波变换将其分解为一个近似值和至少一个Detail的和。在加深电平数之前执行小波变换,直到电平数达到阈值电平数为止,在该阈值电平数处,一个近似值的能量与原始信号的能量之比与预定阈值具有预定关系。作为伪信号分量的阈值水平数处的近似值近似为零,并且通过小波逆变换来重构直至所述阈值水平数处的近似值和细节。

著录项

  • 公开/公告号US6917903B2

    专利类型

  • 公开/公告日2005-07-12

    原文格式PDF

  • 申请/专利权人 QINZHONG SHI;HIDEAKI UCHIKAWA;

    申请/专利号US20030652034

  • 发明设计人 HIDEAKI UCHIKAWA;QINZHONG SHI;

    申请日2003-09-02

  • 分类号G06F15/00;H03F1/26;H04B15/00;

  • 国家 US

  • 入库时间 2022-08-21 22:21:11

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