Stochastic Multi-Resonance in a Linear System Driven by Multiplicative Polynomial Dichotomous Noise  

作　　者：ZHANG Lu ZHONG Su-Chuan PENG Hao LUO Mao-Kang 张路;钟苏川;彭皓;罗懋康(College of Mathematics,Sichuan University,Chengdu 610065)

机构地区：[1]College of Mathematics,Sichuan University,Chengdu 610065

出　　处：《Chinese Physics Letters》2011年第9期54-57,共4页中国物理快报（英文版）

基　　金：by the National Natural Science Foundation of China under Grant No 10731050;the Program for Changjiang Scholars and Innovative Research Team in University of Ministry of Education of China under Grant No IRTO0742.

摘　　要：We investigate stochastic resonance in a linear system subjected to multiplicative noise that is a polynomial function of colored noise.Using the stochastic averaging method,the analytical expression of the output signal-to-noise ratio(SNR)is derived.Theoretical analysis and numerical results show that the output SNR is a non-monotonic function of both the noise intensity and the correlation rate.Moreover,the phenomoenon of stochastic multi-resonance(SMR)is found,which is not observed in conventional linear systems driven by multiplicative noise with only a linear term.

关 键 词：STOCHASTIC MULTIPLICATIVE POLYNOMIAL 

分 类 号：O17[理学—数学]