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小波变换的时频分析及其在实际中的应用
Wavelet Transform for Time-frequency Analysis and Its Application
【摘要】 由于小波变换自身的特性,它非常适合对非平稳和时变信号进行分析及处理。本文介绍了小波变换的时频分析,具体将小波变换应用于几个非平稳及时变信号的处理,并将小波变换和其他信号时频分析方法做了比较,得出了小波变换的优势和适用特点,最后给出了小波变换应用于信号去噪的例子。
【Abstract】 Wavelet transform is quite suitable for non-stationary and time-varying signals processing.This paper introduces wavelet transform for time-frequency analysis and some of its application in non-stationary and time-varying signals processing.Then this paper compares wavelet transform with other ways of signal’s time-frequency analysis and puts forward the advantages and features of wavelet transform.At last,examples of denoising using wavelet transform is showed.
- 【文献出处】 中国传媒大学学报(自然科学版) ,Journal of Communication University of China(Science and Technology) , 编辑部邮箱 ,2011年02期
- 【分类号】TN911.7
- 【被引频次】30
- 【下载频次】1053