Weak signal detection based on chaotic oscillator

被引：0
|
作者：
Liu, D [1 ]
Ren, HP [1 ]
Song, L [1 ]
Li, HM [1 ]
机构：
[1] Xian Univ Technol, Xian, Peoples R China
来源：
CONFERENCE RECORD OF THE 2005 IEEE INDUSTRY APPLICATIONS CONFERENCE, VOLS 1-4 | 2005年
关键词：
weak signal detection; chaotic oscillator; Lyapunov exponents; phase space reconstruction;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The weak signal detection based on chaotic oscillator is analyzed, and the weaknesses of the existing Melnikov method and the phase trajectory observation method are pointed out in this paper. A new weak signal detection method based on Lyapunov Exponents (LE) is proposed. Firstly, the model based LE calculation method is used to determine the accurate initial threshold value. Secondly, an improved LE calculation algorithm is proposed based on phase space reconstruction of the observed data. The characteristics of this improved method are the high precision of the threshold value setting and the automatic recognition. Simulation results verify analysis and the effectiveness of this method.
引用
收藏
页码：2054 / 2058
页数：5
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