Stochastic Resonance in a Harmonic Oscillator with Randomizing Damping by Asymmetric Dichotomous Noise
(0) 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, critical-damped 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.
Shiqi Jiang Feng Guo Yurong Zhou Tianxiang Gu
School of Automation Engineering, University of Electronic Science and Technology of China, Chengdu School of Automation Engineering, University of Electronic Science and Technology of China, Chengdu School of Life Science and Technology, University of Electronic Science and Technology of China, Che
国际会议
2007年通信、电路与系统国际会议(2007 International Conference on Communications,Circuits and Systems Proceedings)
日本福冈
英文
2007-07-11（万方平台首次上网日期，不代表论文的发表时间）