基于小波变换系数门限值的去噪方法研究  

Research on Door Method to De-noise Based on Wavelet Transform

作　　者：栾庆国[1] 王洵[2] 

机构地区：[1]空军航空大学航空军械工程系,吉林长春130022 [2]华东交通大学应用物理系,江西南昌330013

出　　处：《科技广场》2009年第1期15-17,共3页Science Mosaic

摘　　要：本文系统分析了基于小波变换的门限值去噪方法,研究了小波变换门限值选择的准则及其算法。通过计算机仿真,比较了各种准则的性能,验证了基于小波变换门限值去噪方法的滤波效果。仿真结果表明,基于小波变换门限值的去噪方法可以有效地去除宽带噪声。The door method to paper. As well as the rule and de-noise on the basis of wavelet transform is emphatically analyzed in this arithmetic of wavelet transform door value choice. Through computer emulation, the performance of various rules is compared and the filter effect on the basis of wavelet transform door method to broadband noise de-noise is also validated. According to emulation result, this kind of method can restrain effectively by using this de-noising technique.

关 键 词：小波变换 门限值 滤波 宽带 

分 类 号：TN911.4[电子电信—通信与信息系统]