中国物理B ›› 2012, Vol. 21 ›› Issue (5): 50503-050503.doi: 10.1088/1674-1056/21/5/050503

• GENERAL • 上一篇    下一篇

Effect of inertia mass on the stochastic resonance driven by a multiplicative dichotomous noise

李鹏,聂林如,黄奇瑞,孙兴修   

  1. Faculty of Science, Kunming University of Science and Technology, Kunming 650093, China
  • 收稿日期:2011-09-09 修回日期:2012-04-27 出版日期:2012-04-01 发布日期:2012-04-01
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 10847139) and the Yunnan Provincial Foundation, China (Grant Nos. 2009CD036 and 08Z0015).

Effect of inertia mass on the stochastic resonance driven by a multiplicative dichotomous noise

Li Peng(李鹏), Nie Lin-Ru(聂林如), Huang Qi-Rui(黄奇瑞), and Sun Xing-Xiu(孙兴修)   

  1. Faculty of Science, Kunming University of Science and Technology, Kunming 650093, China
  • Received:2011-09-09 Revised:2012-04-27 Online:2012-04-01 Published:2012-04-01
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 10847139) and the Yunnan Provincial Foundation, China (Grant Nos. 2009CD036 and 08Z0015).

摘要: A stochastic system driven by dichotomous noise and periodic signal is investigated in the under-damped case. The exact expressions of output signal amplitude and signal-to-noise ratio (SNR) of the system are derived. Numerical results indicate that the inertial mass greatly affects the output signal amplitude and the SNR. Regardless of whether the noise is symmetric or asymmetric, the inertial mass can influence the phenomenon of stochastic resonance (SR) of the system, leading to two types of resonance phenomenon:one is coherence-resonance-like of the SNR with inertial mass, the other is the SR of the SNR with noise intensity.

关键词: dichotomous noise, inertial mass, output signal amplitude, signal-to-noise ratio

Abstract: A stochastic system driven by dichotomous noise and periodic signal is investigated in the under-damped case. The exact expressions of output signal amplitude and signal-to-noise ratio (SNR) of the system are derived. Numerical results indicate that the inertial mass greatly affects the output signal amplitude and the SNR. Regardless of whether the noise is symmetric or asymmetric, the inertial mass can influence the phenomenon of stochastic resonance (SR) of the system, leading to two types of resonance phenomenon:one is coherence-resonance-like of the SNR with inertial mass, the other is the SR of the SNR with noise intensity.

Key words: dichotomous noise, inertial mass, output signal amplitude, signal-to-noise ratio

中图分类号:  (Noise)

  • 05.40.Ca
02.50.Ey (Stochastic processes)