小波去噪方法分析与Matlab仿真

小波分析理论是一种新兴的信号处理理论,它在时间上和频率上都有很好的局部性,这使得小波分析非常适合于时-频分析,借助时-频局部分析特性,小波分析理论已经成为信号去噪中的一种重要的工具。简述了几种小波去噪方法,其中的阈值去噪的方法是一种实现简单、效果较好的小波去噪方法。

Wavelet analysis theory is a new theory of signal process and it has good localization in both frequency and time domains.It makes the wavelet analysis suitable for time - frequency analysis.Wavelet analysis has played a particularly important role in denoising,due to the fact that it has the property of time-frequency analysis.In this paper,the method of Wavelet Analysis is analyzed.and the method of threshold denoising is a good method of easy realization and effective to reduce the noise.