一种改进的小波变换阈值去噪法  

Improved Threshold Method for Signal De-Noising in Wavelet

作　　者：汪小梅[1] 朱华[2] 

机构地区：[1]军事经济学院基础部,武汉430035 [2]湖北大学知行学院,武汉430011

出　　处：《重庆理工大学学报（自然科学）》2010年第6期48-51,共4页Journal of Chongqing University of Technology：Natural Science

基　　金：国家自然科学基金资助项目(40774062)

摘　　要：对传统相关去噪方法进行了改进,把相关去噪方法和阈值去噪方法结合在一起,得到一种组合方法。该方法滤波之后得到的小波系数不仅连续性好,准确率高,而且易于重构信号。仿真结果表明,消噪效果有了明显的改观。An improvement to traditional de-noising method was presented.The related de-noising method and the threshold de-noising method are combined to be an improved method.With this method,the wavelet coefficients not only have good continuity and high accuracy but also are easy to reconstruct signals after filtering.The simulation results show de-noising effects are clearly improved.

关 键 词：小波消噪 阈值函数 空域相关 信噪比 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]