Stochastic resonance in a bias monostable system driven by a periodic rectangular signal and uncorrelated noises

被引：1
|
作者：
Mingli Yao
Wei Xu
Lijuan Ning
机构：
[1] Northwestern Polytechnical University,Department of Applied Mathematics
[2] Shaanxi Normal University,College of Mathematics and Information Science
来源：
Nonlinear Dynamics | 2012年 / 67卷
关键词：
Stochastic resonance; Bias monostable system; Signal-to-noise ratio;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The stochastic resonance in a bias monostable system driven by a periodic rectangular signal and uncorrelated noises is investigated by using the theory of signal-to-noise (SNR) in the adiabatic limit. The analytic expression of the SNR is obtained for arbitrary signal amplitude without being restricted to small amplitudes. The SNR is a nonmonotonic function of intensities of multiplicative and additive noises and the noise intensity ratio R=D/Q, so stochastic resonance exhibits in the bias monostable system. We investigate the effect of any system parameter (such as D,Q,R,r) on the SNR. It is shown that the SNR is a nonmonotonic function of the static asymmetry r, also; the SNR is decreased when |r| is increased. Moreover, the SNR is increased when the noise intensity ratio R=D/Q is increased.
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页码：329 / 333
页数：4
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