Stochastic resonance in an asymmetric bistable system driven by coloured noises

被引：17
|
作者：
Yang Jian-Hua [1 ]
Liu Xian-Bin [1 ]
机构：
[1] Nanjing Univ Aeronaut & Astronaut, Coll Aerosp Engn, Inst Vibrat Engn Res, Nanjing 210016, Peoples R China
来源：
CHINESE PHYSICS B | 2010年 / 19卷 / 05期
基金：
中国国家自然科学基金;
关键词：
stochastic resonance; asymmetric bistable system; coloured noises; LINEAR-SYSTEM;
D O I：
10.1088/1674-1056/19/5/050504
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The phenomenon of stochastic resonance is investigated in an asymmetric bistable system with coloured noises. The approximate Fokker-Planck equation is derived based on the Novikov theorem and the Fox approach. By applying the two-state theory, the expression of the signal-to-noise ratio is obtained in the adiabatic limit. The effects of the noise parameters on signal-to-ratio are discussed. It is found that the stochastic resonance phenomena appear in most cases and disappear in some special cases.
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页码：0505041 / 0505046
页数：6
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