High signal-to-noise ratio gain by stochastic resonance in an unconventional bistable system

【Author】

Pin Wan Faculty of Automation Guangdong University of Technology Guangzhou, China Yiju Zhan School of Engineering Sun Yat-Sen University Guangzhou, China Hui Zheng Nanjing Afounder Smart Networks Co., ltd Nanjing, China

【Abstract】

We report that the signal-to-noise ratio (SNR) can be improved by the stochastic resonance (SR) in an unconventional bistable system. The system is driven by Gaussian white noise and a sinusoidal signal, and studied by using the second-order Runge- Kutta method. We find that the SNR and the SNR gain exhibit the stochastic resonance behavior, and the SNR gain greatly exceeds unity on some occasions. This result is the latest development of the unconventional bistable stochastic resonance, and has potential applications in the signal detection, processing and communications.

【Keywords】

unconventional bistable stochastic resonance; SNR gain; numerical simulation; nonlinearity

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Total: 12 articles

  • [1] Leng Yong-Gang 1)2) Wang Tai-Yong 1) 1)(Mechanical Engineering College, Tianjing University, Tianjing 3000 72, China) 2)(Department of Computer, China Coal Economic College, Yantai 264005 , China), Numerical research of twice sampling stochastic resonance for the detection of a weak signal submerged in a heavy Noise, Acta Physica Sinica,
  • [2] Kang Yan-Mei Xu Jian-Xue Xie Yong (Institute of Nonlinear Dynamics, School of Architectural Engineering and Mechanics, Xi'an Jiaotong University, Xi'an 710049,China), Relaxation rate and stochastic resonance of a single-mode nonlinear optical system, Acta Physica Sinica,
  • [3] Z. Gingl;;R. Vajtai;;L.B. Kiss, Signal-to-noise ratio gain by stochastic resonance in a bistable system, Chaos, Solitons and Fractals,
  • [4] M. Evstigneev;P. Reimann;V. Pankov;R. H. Prince, "Stochastic resonance in monostable overdamped systems,", Europhys Lett, Europhysics Letters (Europhysics Letters)

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