Signal Filtering Algorithm Based on the Wavelet Transformation

WANG Bo; PAN Quan; ZHANG Hong  cai; DAI Guan  zhong

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Signal Filtering Algorithm Based on the Wavelet Transformation

更新时间：2025-12-08

- Signal Filtering Algorithm Based on the Wavelet Transformation
- Acta Electronica Sinica Issue 11, (1999)
- 作者机构：
  
  西北工业大学自控系,西安,710072
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN713
- Published：1999
- 稿件说明：
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[1]王博,潘泉,张洪才,戴冠中.基于子波分解的信号滤波算法[J].电子学报,1999(11):72-74.

WANG Bo, PAN Quan, ZHANG Hong cai, et al. Signal Filtering Algorithm Based on the Wavelet Transformation[J]. Acta Electronica Sinica, 1999, (11).
[1]王博,潘泉,张洪才,戴冠中.基于子波分解的信号滤波算法[J].电子学报,1999(11):72-74. DOI：

WANG Bo, PAN Quan, ZHANG Hong cai, et al. Signal Filtering Algorithm Based on the Wavelet Transformation[J]. Acta Electronica Sinica, 1999, (11). DOI：

摘要

人们一直在利用有效信号和噪声的某种特性差异

进行着对污染信号恢复

这一过程几乎完全依赖于对信号和噪声特性的精确描述

子波分析理论为这种描述提供了新的工具.本文对子波域阈值滤波的核心问题———滤波阈值的意义及取值规则进行了探讨

给出了滤波阈值更加简洁的数学表述

明确了阈值随尺度递减的数学关系

使基于子波分解的信号滤波算法

在理论上更加完善

Abstract

Some differences in property between signal and noise are used to restore the original signal from the polluted signal.This process depends on accurate description of these properties.The filtering feature of wavelet transformation is analyzed in the paper and the threshold filtering algorithm is studied.The sernse of the threshold for filtering is explicated and the role to get the threshold is given.The mathematical expression of threshold is given and the adaptive threshold filtering algorithm is constructed.

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