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.
Abstract: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.
ZHANG Lu;ZHONG Su-Chuan;PENG Hao;LUO Mao-Kang**
. Stochastic Multi-Resonance in a Linear System Driven by Multiplicative Polynomial Dichotomous Noise[J]. 中国物理快报, 2011, 28(9): 90505-090505.
ZHANG Lu, ZHONG Su-Chuan, PENG Hao, LUO Mao-Kang**
. Stochastic Multi-Resonance in a Linear System Driven by Multiplicative Polynomial Dichotomous Noise. Chin. Phys. Lett., 2011, 28(9): 90505-090505.
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