摘要
在小波分析的理论基础上 ,简要讨论了小波变换在振动信号分析中的一些典型应用 ,包括信号滤波、降噪、非平稳特性分析、机器状态检测和故障诊断等方面。最后总结了小波变换在振动领域应用的优缺点。
On the theoretical basis of wavelet analysis, the differences between wavelet transform and Fourier transform are given in detail. Wavelet analysis and its application in the processing of vibration signal are discussed, including filters, noise reduction, no-stationary signal, and machinery surveillance and fault diagnosis. At last, the advantages and shortcomings of wavelet transform are summarized.
出处
《电力情报》
2001年第3期5-7,共3页
Information on Electric Power
关键词
小波分析
傅里叶变换
振动
信号处理
wavelet analysis
Fourier transform
vibration
signal processing
