Stochastic resonance in a harmonic oscillator with randomizing damping by asymmetric dichotomous noise

被引：0
|
作者：
Jiang, Shiqi [1 ,2 ]
Guo, Feng [1 ]
Zhou, Yurong [3 ]
Gu, Tianxiang [1 ]
机构：
[1] Univ Elect Sci & Technol China, Sch Automat Engn, Chengdu 610054, Peoples R China
[2] China Gas Turbinc Establishment, Chengdu 610500, Peoples R China
[3] Univ Elect Sci & Technol China, Sch Life Sci & Technol, Chengdu 610054, Peoples R China
来源：
2007 INTERNATIONAL CONFERENCE ON COMMUNICATIONS, CIRCUITS AND SYSTEMS PROCEEDINGS, VOLS 1 AND 2: VOL 1: COMMUNICATION THEORY AND SYSTEMS; VOL 2: SIGNAL PROCESSING, COMPUTATIONAL INTELLIGENCE, CIRCUITS AND SYSTEMS | 2007年
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D O I：
暂无
中图分类号：
TP18 [人工智能理论];
学科分类号：
081104 ; 0812 ; 0835 ; 1405 ;
摘要：
The stochastic resonance phenomenon in a harmonic oscillator with randomizing damping coefficient by asymmetric dichotomous noise is investigated. By using the random average method and Shapiro-Loginov formula, the exact solution of the average output amplitude gain (OAG) is obtained. It is applicable to a stable under-damped, criticaldamped or over-damped oscillator. Numerical results show that OAG depend non-monotonically not only on the intensity and the correlation time but also on the asymmetry of the random damping in a stable oscillator in detail, that is, stochastic resonance occurs. The maximum OAG can be achieved in the proper noise. The effect of asymmetric dichotomous noise on OAG versus frequency is similar to decreasing the damping coefficient.
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页码：1044 / +
页数：2
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