Stochastic resonance in a bias linear system with multiplicative and additive noise  

作　　者：郭锋 周玉荣 蒋世奇 古天祥 

机构地区：[1]School of Automation Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China [2]School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 610054, China [3]School of Information and Electric Engineering, Panzhihua University, Panzhihua 617000, China [4]China Gas Turbine Establishment, Jiangyou 621703, China

出　　处：《Chinese Physics B》2006年第5期947-952,共6页中国物理B（英文版）

摘　　要：In this paper, the stochastic resonance in a bias linear system subjected multiplicative and additive dichotomous noise is investigated. Using the linear-response theory and the properties of the dichotomous noise, this paper finds the exact expressions for the first two moments and the signal-to-noise ratio （SNR）. It is shown that the SNR is a non-monotonic function of the correlation time of the multiplicative and additive noise, and it varies non-monotonously with the intensity and asymmetry of the multiplicative noise as well as the external field frequency. Moreover, the SNR depends on the system bias, the intensity of the cross noise between the multiplicative and additive noise, and the strength and asymmetry of the additive noise.In this paper, the stochastic resonance in a bias linear system subjected multiplicative and additive dichotomous noise is investigated. Using the linear-response theory and the properties of the dichotomous noise, this paper finds the exact expressions for the first two moments and the signal-to-noise ratio （SNR）. It is shown that the SNR is a non-monotonic function of the correlation time of the multiplicative and additive noise, and it varies non-monotonously with the intensity and asymmetry of the multiplicative noise as well as the external field frequency. Moreover, the SNR depends on the system bias, the intensity of the cross noise between the multiplicative and additive noise, and the strength and asymmetry of the additive noise.

关 键 词：stochastic resonance bias linear system signal-to-noise ratio 

分 类 号：TN911[电子电信—通信与信息系统]