Abstract This paper investigates the stochastic resonance (SR) phenomenon in an asymmetric system with coupling between multiplicative and additive noise when the coupling between two noise terms is coloured. The approximate expression of signal-to-noise ratio has been obtained by applying the two-state theory and SR exhibits in the bistable system. Moreover, the potential asymmetry $r$ and cross-correlation strength $\lambda$ can weaken the SR phenomenon, while the cross-correlation time $\tau $ can strengthen the SR phenomenon.
Received: 11 April 2007
Revised: 10 July 2007
Accepted manuscript online:
Fund: Project
supported by the National Natural Science Foundation of China (Grant
Nos 10472091 and 10332030) and by the Natural Science Foundation of
Shaanxi Province (Grant No 2003A03).
Cite this article:
Ning Li-Juan(宁丽娟), Xu Wei(徐伟), and Yao Ming-Li(姚明礼) Stochastic resonance in an asymmetric bistable system driven by coloured correlated multiplicative and additive noise 2008 Chin. Phys. B 17 486
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