Stochastic resonance in a bistable system with coloured correlation between additive and multiplicative noise |
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| Authors: | Luo Xiao-Qin and Zhu Shi-Qun |
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| Affiliation: | School of Physical Science and Technology, Suzhou University, Suzhou 215006, China |
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| Abstract: | The phenomenon of stochastic resonance (SR) in a bistable nonlinear system with coupling between additive and multiplicative noises is investigated when the correlation between two noise terms is coloured. It is found that the signal-to-noise ratio (SNR) of the system is affected not only by the coupling strength λ between two noise terms, but also by the noise correlation time τ. The SNR is changed from a single peak, to two peaks with a dip, and then to a monotonically decreasing function with noise strength. The dependence of the SR on the initial conditions is entirely caused by the coupling strength λ between two noise terms. |
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| Keywords: | coloured correlation signal-to-noise ratio stochastic resonance |
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