Stochastic resonance in a bistable system subject to dichotomous noise

被引：0

作者：

Zhou Yu-Rong ^{[1
,2
]}

Pan Hui-Mei ^{[2
]}

Guo Feng ^{[3
]}

Pang Xiao-Feng ^{[1
]}

机构：

[1] Univ Elect Sci & Technol China, Sch Life Sci & Technol, Chengdu 610054, Peoples R China

[2] Panzhihua Univ, Sch Informat & Elect Engn, Panzhihua 617000, Peoples R China

[3] Univ Elect Sci & Technol China, Sch Automat Engn, Chengdu 610054, Peoples R China

来源：

COMMUNICATIONS IN THEORETICAL PHYSICS | 2008年 / 50卷 / 02期

关键词：

stochastic resonance; signal-to-noise ratio; spectral power amplification;

D O I：

暂无

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The stochastic resonance phenomenon in a bistable system subject to Markov dichotomous noise (DN) is investigated. Based on the adiabatic elimination and the two-state theories, the explicit expressions for the signal-to-noise ratio (SNR) and the spectral power amplification (SPA) have been obtained. It is shown that two peaks can occur on the curve of SNR versus the intensity of the DN. Moreover, the SNR is a non-monotonic function of the correlation time of the DN. The SPA varies non-monotonously with the strength of the DN. The dependence of the SNR on the frequency and the amplitude of the external periodic signal are discussed. The effect of the external frequency and the correlation time of the DN on the SPA are analyzed.

引用

页码：387 / 390

页数：4

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