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| 双稳系统中随机共振现象的研究 | |
| 引用本文： | 苗祖英,王华,余思宁.双稳系统中随机共振现象的研究[J].华中师范大学学报(自然科学版),2000,34(4):399-402,407. |
| 作者姓名： | 苗祖英 王华 余思宁 |
| 作者单位： | 1. 荆州教育学院,湖北荆州,434000 2. 沙市大学电气工程系,湖北,荆州,434000 3. 华中师范大学物理系,武汉,430079 |
| 基金项目： | 国家自然科学基金!(19805003) |
| 摘 要： | 利用在绝热近似条件下的信噪比（SNR）理论，研究了具有乘性和加性噪声以及周期信号共同作用下双稳系统的随机共振（SR）现象，考虑噪声之间有关联的情况，得到了系统的SNR表达式，发现噪声关联使系统的SNR不仅依赖于噪声之间的关联强度，而且强烈地依赖于系统的初始条件。 |
| 关 键 词： | 随机共振 双稳系统 信噪比 多噪声作用 噪声 |
Study on stochastic resonance in bistable system |
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| MIAO Zu-ying,WANG Hua,YU Si-ning.Study on stochastic resonance in bistable system[J].Journal of Central China Normal University(Natural Sciences),2000,34(4):399-402,407. | |
| Authors: | MIAO Zu-ying WANG Hua YU Si-ning |
| Abstract: | The stochastic resonance (SR) phenomenon in a bistable system under the simultan eous action of multiplicative and additive noise and periodic signal is studied by using the theory of signaltonoise ratio (SNR) in the adiabatic limit. Th e expressions of the SNR for the case of correlation between noises are obtain ed. It is found that the SNR is not only dependent on the intensity of correlati ons between noises, but also on the initial condition of the system in the prese nce of correlations between two noises. |
| Keywords: | stochastic resonance bistable system signal-to-noise ratio |
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