Research on the Stochastic Resonance induced by random parameter in an Alternating-Current Integrator

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Journal of Vibration and Shock ›› 2010, Vol. 29 ›› Issue (3) : 197-199.

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Research on the Stochastic Resonance induced by random parameter in an Alternating-Current Integrator

GUO Feng1; LUO Xiang-dong1;LI Shao-fu1; ZHOU Yu-rong2

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Abstract

The phenomenon of stochastic resonance in an alternating-current integrator with random parameter is investigated. The explicit expression of the output signal-to-noise ratio (SNR) of the system is obtained based on linear system theory. It is shown that the SNR is a non-monotonic function of the intensity and correlation rate of the noise as well as of the system parameter. The SNR increases with the increasing of the signal frequency, while it decreases with the increasing of the bias part of the input signal.

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Stochastic resonance / random parameter / output signal-to-noise ratio / alternating-current integrator

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GUO Feng;LUO Xiang-dong;LI Shao-fu;ZHOU Yu-rong. Research on the Stochastic Resonance induced by random parameter in an Alternating-Current Integrator [J]. Journal of Vibration and Shock, 2010, 29(3): 197-199