Improving the Stochastic Resonance in a Bistable System with the Bounded Noise Excitation

被引：0
作者：
Jian Zhao
Jianhua Yang
Jingling Zhang
Chengjin Wu
Dawen Huang
机构：
[1] China University of Mining and Technology,School of Mechatronic Engineering
[2] China University of Mining and Technology,Jiangsu Key Laboratory of Mine Mechanical and Electrical Equipment
来源：
Journal of Statistical Physics | 2018年 / 173卷
关键词：
Stochastic resonance; Vibrational resonance; Bounded noise;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The stochastic resonance (SR) phenomenon is investigated in a typical bistable system that excited by the bounded noise and the weak low-frequency signal simultaneously. Based on numerical simulations, the main results are obtained. The SR performance mainly depends on the mean frequency and is influenced by the randomness level of the bounded noise. It occurs when the mean frequency is much larger than or approximates the signal frequency. However, the SR almost disappears when the mean frequency is much smaller than the signal frequency. By introducing an auxiliary high-frequency signal in the excitations, another phenomenon called as vibrational resonance (VR) appears. With the cooperation of VR, the SR performance is greatly improved. The results in this paper give a reference to deal with the weak signal submerged in the bounded noise.
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页码：1688 / 1697
页数：9
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