摘要
文章用时频分析方法中的傅里叶变换和小波变换方法对非平稳信号进行噪声消除,并根据仿真,就这两种方法对信号消噪处理结果,比较傅里叶变换和小波变换这两种方法的优缺点。
This article carries with Fourier Iransform method and the Wavelet transform method of the time-frequency analysis method to eliminate the noise in the non-stationary signal. And according to the simulation, we can find the advantages and disadvantages of the two methods- Fourier transform method and the Wavelet transform method in results of the signal noise- eliminating process.
出处
《科学之友》
2007年第11B期132-133,共2页
Friend of Science Amateurs
关键词
傅里叶变换
小波分析
非平稳信号
消噪
The Fourier transformation
The Wavelet analysis
The non-stationary signal
Elimination of the noise
