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物理学报. 2007, 56(10): 5623-5628.
doi: 10.7498/aps.56.5623.
周期混合信号和噪声联合激励下的非对称双稳系统的随机共振
- 收稿日期: 2007-01-29
- 修回日期: 2007-02-08
- 刊出日期: 2007-10-10
English Abstract
Stochastic resonance in an asymmetric bistable system driven by mixed periodic force and noises
- Received Date:
29 January 2007
- Accepted Date:
08 February 2007
- Published Online:
10 October 2007
Abstract: The phenomenon of stochastic resonance (SR) in an asymmetric bistable system driven by correlated multiplicative and additive noise and two periodic fields is investigated. Analytic expressions of the signal-to-noise ratio (SNR) for fundamental and higher harmonics are derived using the two-state theory. The SR appears in both fundamental and higher harmonics. Moreover, the suppression exists for higher harmonics. The effects of static asymmetry and the noise intensity and the strength of coupling between noises on the SNR are studied.
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