摘要
概要地叙述了小波、小波包理论，提出了一种用小波包分解和信号重构进行信号滤波的方法．先用小波包分解把信号分解到相邻的不同频率段上，然后用信号重构方法对各个频率段上的信号进行重构．以电机的振动信号为例，说明这种方法可以有效地用于信号的滤波．
A new method of signal filtering with wavelet packets and signalreconstruction is proposed.At first, signal is decomposed in different frequency bands, and then the signal of each frequency band is reconstructed. By analyzing the vibration signal of a motor, this method is applied in signal filtering successfully.
出处
《北京科技大学学报》
EI
CAS
CSCD
北大核心
1997年第4期382-385,共4页
Journal of University of Science and Technology Beijing
基金
国家教委"跨世纪优秀人计划"基金
关键词
信号重构
小波变换
信号处理
信号滤波
wavelets,wavelet packets, signal reconstruction, signal filtering
