小波变换应用于信号去噪研究

The Study on Wavelet Signal Denoising

分析了小波变换的基本原理,分别对小波分解与重构法去噪法、非线性小波变换阈值法去噪法以及小波变换模极大值去噪法的原理进行了阐述,并比较了这几种小波去噪方法的优缺点,通过计算机仿真结果表明有效可行.

The basic theory of Wavelet Analysis is analyzed. Several Wavelet Signal Denoising method, such as the wavelet transform modulus maximum method, the nonlinear wavelet threshold denoising method and the denoising based on the interrelation of wavelet domain are described in the paper. The computer simulations show that they are practicable and effective for signal denoising. At last give the result is given.