Stochastic resonance in a bias linear system with multiplicative and additive noise

• 来源期刊: 中国物理（英文版）
• 关键词: stochastic resonance bias linear system signal-to-noise ratio
• 年，卷（期）: 2006,（5）
• 页码范围: 947-952
• 页数: 6页
• 语种: 英文

摘要

In this paper, the stochastic resonance in a bias linear system subjected multiplicative and additive dichotomous noise is investigated. Using the linear-response theory and the properties of the dichotomous noise, this paper finds the exact expressions for the first two moments and the signal-to-noise ratio (SNR). It is shown that the SNR is a non-monotonic function of the correlation time of the multiplicative and additive noise, and it varies non-monotonously with the intensity and asymmetry of the multiplicative noise as well as the external field frequency. Moreover, the SNR depends on the system bias, the intensity of the cross noise between the multiplicative and additive noise, and the strength and asymmetry of the additive noise.