Weak periodical signal detection based on wavelet transform and chaotic system

被引：0

作者：

Lin Min ^{[1
]}

Zhao Jun ^{[1
]}

Mao Qian-min ^{[1
]}

Lv Jin ^{[1
]}

机构：

[1] China Jiliang Univ, Coll Metrol Technol & Engn, Hangzhou 310018, Peoples R China

来源：

Proceedings of 2005 Chinese Control and Decision Conference, Vols 1 and 2 | 2005年

关键词：

wavelet transform; chaotic system; signal detection;

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：

Based on wavelet transform and chaotic system, a method for weak Signal detection is presented. According to the multi-resolution of the wavelet, the sensitivity of weak periodical signal and the immunity to noise of the chaotic system, the periodical signal with strong noise processed by wavelet is taken as the input of the critical Duffing system. The weak periodical signal is detected by the transformation of the phase trajectory. The simulation shows that the detection lower limit is -166 dB and the signal noise ratio is approximate to -116 dB.

引用

页码：152 / 154

页数：3

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