Improved Algorithm for Denoising Based on Wavelet Threshold and Performance Analysis

摘要

A new threshold denoising method is presented in this paper, which is based on the soft and hard-threshold denoising method and named by ‘high-order approach method’. This method is flexible and extensively applicable. The principle and applicability of the new method is analyzed. Two common signals in Matlab are chosen to compare the denoising effect between the new method and others. The result shows that the new method has better denoising effect and higher SNR.