摘要
小波对分析信号滤波有其独特的优势,本文介绍了小波滤波的原理和常用的小波阈值滤波法,分析了阈值滤波的理论基础和阈值函数数学表达式。最后通过MATLAB实现小波阈值滤波器的设计与仿真,最终利用高低通滤波器来分解和重构有噪声的信号。
Wavelet analysis has its unique advantages.This paper introduces the principle of wavelet filtering and wavelet threshold filtering method,the theoretical basis of the threshold filter and the threshold function of mathematical expression.Finally, the design and simulation of the wavelet threshold filter is realized by MATLAB.Eventually,the signal is decomposed and reconstructed with high and low pass filter.
出处
《软件》
2015年第10期102-104,共3页
Software
关键词
小波阈值滤波
滤波器
分解
重构
Wavelet threshold filter
Filter
Decomposition
Reconstruction
