Wavelet Analysis in Testing Signal
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摘要: 本文给出了小波的基本原理和构造方法以及小波分析的快速算法,将小波分析方法(WAM)引入到非平稳冲击信号的分析中,作为小波分析应用实例,对汽车齿轮箱的断齿测信号进行了分析,给出了分析结果.Abstract: In this paper,Wavelet Analysis Method(WAM)is introduced to analyse the non-stationary, shock signals.The theory and construction method of wavelet,the fast algorithms of wavelet analysis are presented.As an example,the gear testing signal has be analysed by WAM,and the results of WAM are compared with that of Fourier spectrum.The advantages of WAM are clearly shown.
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Key words:
- wavelet analysis /
- Fourier spectral analysis /
- testing signal
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[1] K.Chui.Charhs,An In tr odu ct ion to Wav elet,Texas A&M University,Academic Press Inc.(1992),1-22. [2] 刘贵忠、邸双亮,《小波分析及应用》,西安电子科技大学出版社(1992),17-36. [3] 王建忠,小波理论及其在物理和工程中的应用,数学进展,21(3)(1992),289-314. [4] S.Haykin,Nonlinear Methods of Spectral Analysis,Spring-Verlag,Berlin,Heidelberg,New York(1979). -
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