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

Mingli Yao, Wei Xu, Lijuan Ning

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25 Scopus citations

Abstract

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.

Original languageEnglish
Pages (from-to)329-333
Number of pages5
JournalNonlinear Dynamics
Volume67
Issue number1
DOIs
StatePublished - Jan 2012

Keywords

  • Bias monostable system
  • Signal-to-noise ratio
  • Stochastic resonance

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