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Stochastic Resonance in an Over-Damped Bias Linear System with Dichotomous Noise |
| GUO Feng1;ZHOU Yu-Rong2;JIANG Shi-Qi1;GU Tian-Xiang1 |
| 1School of Automation Engineering, University of Electronic Science and Technology of China, Chengdu 610054
2School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 610054 |
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| Cite this article: |
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GUO Feng, ZHOU Yu-Rong, JIANG Shi-Qi et al 2006 Chin. Phys. Lett. 23 1705-1708 |
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Abstract The stochastic resonance in an over-damped bias linear system subject to multiplicative and additive dichotomous noise (DN) is investigated. By using the linear-response theory and the properties of the DN, the exact expressions are found for the signal-to-noise ratio (SNR). It is shown that the SNR is a non-monotonic function of the correlation time of the additive DN, and it varies non-monotonically with the bias of the external field, the intensity and asymmetry of the multiplicative DN, as well as the external field frequency. Moreover, the SNR depends on the bias of the system, as well as the strength and asymmetry of the additive DN.
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| Keywords:
05.40.-a
02.50.-r
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Published: 01 July 2006
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| PACS: |
05.40.-a
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(Fluctuation phenomena, random processes, noise, and Brownian motion)
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02.50.-r
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(Probability theory, stochastic processes, and statistics)
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