| 小波变换的时频分析及其在实际中的应用 |
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| 引用本文： | 徐博尧,杨刚,李欣欣.小波变换的时频分析及其在实际中的应用[J].中国传媒大学学报,2011(2). |
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| 作者姓名： | 徐博尧 杨刚 李欣欣 |
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| 作者单位： | 中国传媒大学; |
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| 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。
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| 关 键 词： | 小波变换 时频分析 小波去噪 |
Wavelet Transform for Time-frequency Analysis and Its Application |
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| XU Bo-yao,YANG Gang,LI Xin-xin.Wavelet Transform for Time-frequency Analysis and Its Application[J].Journal of Communication University of China Science and TEchnology,2011(2). |
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| Authors: | XU Bo-yao YANG Gang LI Xin-xin |
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| Institution: | XU Bo-yao,YANG Gang,LI Xin-xin(Information Engineering School,Conmunication University of China,Beijing 100024,China) |
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| 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. |
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| Keywords: | wavelet transform time-frequency analysis wavelet denoising |
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