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Performance Investigation of Stochastic Resonance in Three Types of Asymmetric Bistable System Driven by Trichotomous Noise

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  • Si-Hai Zhao
  • Jiang-Ye Xu
  • Yu-Xiao Liu
  • Ze-Xing Zhao
  • Zhong-Shun Qin

Abstract

This paper proposes a new system whose potential function is with three types of asymmetric potential wells, driven by trichotomous noise. Firstly, the three types of asymmetric bistable system are described in detail, and the changes of asymmetric bistable system potential function under different asymmetric factors are analyzed. Secondly, the effect of potential function parameters, asymmetric factor , noise intensity D , and the probability of particle transition q is discussed, using numerical simulation. The detection effects of traditional symmetric SR and three types of asymmetric SR are observed and compared under the driving of trichotomous noise and periodic signals. The mean of signal-to-noise ratio gain is the indicator of the system's effectiveness on enhancing weak signal. The results indicate that it can make the detection effect of the asymmetric system better than that of the traditional bistable system by adjusting the parameters of the asymmetric stochastic resonance system and trichotomous noise.

Suggested Citation

  • Si-Hai Zhao & Jiang-Ye Xu & Yu-Xiao Liu & Ze-Xing Zhao & Zhong-Shun Qin, 2020. "Performance Investigation of Stochastic Resonance in Three Types of Asymmetric Bistable System Driven by Trichotomous Noise," Complexity, Hindawi, vol. 2020, pages 1-12, November.
    • Handle: RePEc:hin:complx:8842122
    DOI: 10.1155/2020/8842122
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