Stochastic resonance in with additive noises a stochastic bistable system and square-wave signal

• Published in: Chinese physics B no. 8; pp. 144 - 150
• Main Author: 郭锋 罗向东 李少甫 周玉荣
• Format: Journal Article
• Language: English
• Published: 2010
• Subjects: 加性噪声; 加性白噪声; 双稳系统; 噪声驱动; 强度函数; 方波信号; 随机共振; 随机和
• ISSN: 1674-1056

This paper considers the stochastic resonance in a stochastic bistable system driven by a periodic square-wave signal and a static force as well as by additive white noise and dichotomous noise from the viewpoint of signal-to-noise ratio. It finds that the signal-to-noise ratio appears as stochastic resonance behaviour when it is plotted as a function of the noise strength of the white noise and dichotomous noise, as a function of the system parameters, or as a function of the static force. Moreover, the influence of the strength of the stochastic potential force and the correlation rate of the dichotomous noise on the signal-to-noise ratio is investigated.