Stochastic resonance in a stochastic bistable system with additive noises and square-wave signal

doi:10.1088/1674-1056/19/8/080502

Abstract This paper considers the stochastic resonance in a stochastic bistable system driven by a periodic square-wave signal and a static force as well as by additive white noise and dichotomous noise from the viewpoint of signal-to-noise ratio. It finds that the signal-to-noise ratio appears as stochastic resonance behaviour when it is plotted as a function of the noise strength of the white noise and dichotomous noise, as a function of the system parameters, or as a function of the static force. Moreover, the influence of the strength of the stochastic potential force and the correlation rate of the dichotomous noise on the signal-to-noise ratio is investigated.

Keywords: stochastic resonance stochastic bistable system dichotomous noise

Received: 24 December 2008
Revised: 21 December 2009
Accepted manuscript online:

PACS:	05.40.Ca	(Noise)
	02.50.Ey	(Stochastic processes)
	84.30.Sk	(Pulse and digital circuits)

Fund: Project supported by the Doctorial Foundation of Southwest University of Science and Technology of China (Grant No. 08zx7108).

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Guo Feng(郭锋), Luo Xiang-Dong(罗向东), Li Shao-Fu(李少甫), and Zhou Yu-Rong(周玉荣) Stochastic resonance in a stochastic bistable system with additive noises and square-wave signal 2010 Chin. Phys. B 19 080502

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Stochastic resonance in a stochastic bistable system with additive noises and square-wave signal

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