摘要
介绍了小波分析的产生与发展及理论现状,小波分析是傅立叶分析思想方法的发展与延拓。小波基的构造以及结果分析都依赖傅立叶分析,传统上使用傅立叶分析的地方,都可以使用小波分析,小波分析在超越傅立叶分析的同时与傅立叶分析相互补充,螺旋式向前发展。还分析了小波分析在声发射信号处理中的应用现状,并指出了存在的不足及今后的前景展望。
The genesis, development and recent advances of the wavelet analysis theory were introduced in this paper. Wavelet analysis method was derived from Fourier analysis theory. The structure and result analysis of wavelet basis are dependent on Fourier analysis. Wavelet analysis can be used to any occasion where Fourier analysis is conventionally adopted. Wavelet analysis takes advantage over Fourier analysis and has undergone spiral-rising development. Meanwhile, the two methods can supplement each other. Besides, the application of wavelet analysis in signal processing for acoustic emission （AE） was dealt with as well. Some deficiencies on wavelet analysis at present were pointed out, and the corresponding tendency in the future development was prospected.
出处
《传感器世界》
2006年第9期11-15,共5页
Sensor World
关键词
小波分析
博里叶分析
声发射
信号处理
wavelet analysis
Fourier analysis
acoustic emission
signal processing
