摘要
从信号处理及工程应用的角度出发，介绍了小波及小波变换的常用数学术语、基本概念以及小波变换的时频局部化特性，说明了小波变换是分析非平稳变化信号的理想工具，为进一步了解小波变换和进行工程应用奠定了基础。
As viewed from signal processing and engineering application,the often-used mathematical terms and basical concept of wavelet and wavelet transform and the time-frequence localization feature of the wavelet transformer are introduced in this paper.It shows the wavelet transform is a desired tool to analyze non-steady variable signal and gives a basis to further understand the wavelet transform and to apply it in engineering.
出处
《继电器》
CSCD
1999年第1期64-67,共4页
Relay
关键词
小波变换
时频局部化
信号分析
Wavelet Wavelet transform Time-frequence localization
