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《科学通报(英文版)》 2003-05
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Chaotic system for the detection of periodic signals under the background of strong noise

LI Yue1 & YANG Baojun2 1. Department of Information Engineering, Jilin University, Changchun130012, China; 2. Department of Geophysics, Jilin University, Changchun 130026,China Correspondence should be addressed to Li Yue (e-mail: liyue84@21cn.com)  
We propose a method to study the chaotic sys-tem for the detection of periodic signals in the presence ofstrong background noise. The numerical experiments indi-cate that the chaotic system constructed from the modified Duffing-Holmes equation is sensitive to the weak periodic signal mixed with noise, and it has certain immunity to noise. The signal to noise ratio for the system can reach to about 91 dB.
【Fund】: the Science and Tech-nology Development Program of Jilin Province (Grant No.20020626)
【CateGory Index】: O415.5
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【Co-references】
Chinese Journal Full-text Database 10 Hits
1 Wang Xingyuan ①, Zhu Weiyong ② (①School of Information Science and Engineering,Northeastern University, Shenyang 110006,China;②Computer Center,Northeastern University, Shenyang 110006,China);Applying Lyapunov Exponent of Cardioelectrical Signals to Searching for Effect of Chaos in the Evolution of Species[J];JOURNAL OF NORTHEASTERN UNIVERSITY(NATURAL SCIENCE);1999-03
2 LI Yue~(1),YANG Bao-Jun~(2),ZHAO Xue-Ping~(2),ZHANG Ming~(1),LIN Hong-Bo~(1)1 Department of Information Engineering,Jilin University,Changchun 130020,China2 Department of Geophysics,Jilin Univeristy,Changchun 130026,China;An algorithm of chaotic vibrator to detect weak events in seismic prospecting records[J];Chinese Journal of Geophysics;2005-06
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7 LI Yue 1, YANG Bao jun 2, SHI Yao wu 3, ZHANG Zhong bin 1, YU Gong mei 1 (1.Department of Post Communication, Jilin University, Nanhu Campus, Changchun, 130012, P.R.China; 2.Department of Geophysis, Jilin University, Chaoyang Campus, Changchun,;The Application of the Chaotic Oscillator to the Weak Sine Signal Detection in Strong Noise Based[J];Acta Scientiarium Naturalium Universitatis Jilinensis;2001-01
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