徐科, 徐金梧, 杨大雷. 小波变换在信号滤波中的应用[J]. 工程科学学报, 1997, 19(4): 382-385. DOI: 10.13374/j.issn1001-053x.1997.04.036
引用本文: 徐科, 徐金梧, 杨大雷. 小波变换在信号滤波中的应用[J]. 工程科学学报, 1997, 19(4): 382-385. DOI: 10.13374/j.issn1001-053x.1997.04.036
shu
Xu Ke, Xu Jinwu, Yang Dalei. Application of Wavelet Transform in Signal Filtering[J]. Chinese Journal of Engineering, 1997, 19(4): 382-385. DOI: 10.13374/j.issn1001-053x.1997.04.036
Citation: Xu Ke, Xu Jinwu, Yang Dalei. Application of Wavelet Transform in Signal Filtering[J]. Chinese Journal of Engineering, 1997, 19(4): 382-385. DOI: 10.13374/j.issn1001-053x.1997.04.036
shu

小波变换在信号滤波中的应用

Application of Wavelet Transform in Signal Filtering

    摘要
  • 摘要: 概要地叙述了小波、小波包理论,提出了一种用小波包分解和信号重构进行信号滤波的方法.先用小波包分解把信号分解到相邻的不同频率段上,然后用信号重构方法对各个频率段上的信号进行重构.以电机的振动信号为例,说明这种方法可以有效地用于信号的滤波.

     

    Abstract: A new method of signal filtering with wavelet packets and signal reconstruction is proposed.At first, signal is decomposed in different frequency bands, and then the signal of each frequency band is reconstructed. By analyzing the vibration signal of a motor, this method is applied in signal filtering successfully.

     

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