说明：  本文是小波分析在信号降噪方面的应用，有很全的源代码和文字说明，对学习的人有很大的帮助，并且有直观的图像和结果分析。与大家共享
(This is the application of wavelet analysis in signal denoising applications, has a very wide source code and text that has to learn a great help, and have visual images and results analysis. With the U.S. share)