Application of wavelet and wavelet packet in signal de-noising

被引：0
|
作者：
Gao Lijuan
Zhao Hongli
Jiang Taijie
机构：
来源：
Proceedings of the First International Symposium on Test Automation & Instrumentation, Vols 1 - 3 | 2006年
关键词：
wavelet; wavelet packet; signal de-noising; threshold;
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
The application of wavelet in signal de-noising is analyzed and it is simulated by MATLAB. Because wavelet only decomposes the low frequency part of a signal, there is a limitation. Wavelet packet overcomes this limitation, so it has better effect in signal de-noising. The de-noising effects of two methods is compared by simulation and it is improved the acquiescent threshold and the adjustable threshold of signal de-noising based on wavelet packet.
引用
收藏
页码：265 / 268
页数：4
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