摘要
提出了一种小波包自适应滤波算法。该算法将信号的小波包分解和自适应滤波相结合,先将信号进行小波包分解,然后对子信号进行自适应滤波,最后将信号合成从而达到信号降噪的目的。使用该算法对电压信号进行降噪,结果表明小波包自适应滤波算法具有良好的降噪性能。
Presents an auto adapted filtering algorithm on basis of wavelet packets theory. This method combines characters of wavelet packet and auto adapted filtering. First make signal transformed using wavelet packets method,then filter subsignals using auto adapted filtering, finally combine signals which are filtered. At last, filte voltage signals using proposed method. The results indicate that auto adapted filtering algorithm based on wavelet packets is of good properties.
出处
《煤矿机械》
北大核心
2012年第4期74-75,共2页
Coal Mine Machinery
基金
红河学院教学建设与改革研究项目(JG201002)
关键词
小波包
自适应滤波
去噪
wavelet packets
auto adapted filtering
filter
