| 广义高斯噪声下阈值系统中的随机谐振 |
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| 引用本文： | 王友国. 广义高斯噪声下阈值系统中的随机谐振[J]. 南京邮电大学学报(自然科学版), 2006, 26(6): 40-42 |
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| 作者姓名： | 王友国 |
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| 作者单位： | 南京邮电大学,数理学院,江苏,南京,210003 |
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| 摘 要： | 基于两种代表性的测度(互信息、互相关系数)讨论了广义高斯噪声下阈值系统中的随机谐振现象。当信号在阈下时,随机谐振存在且随机谐振的功效随噪声指数参数的减小而降低。根据密度函数的变化,对广义高斯噪声影响随机谐振功效进行解释。这些结果有助于揭示随机谐振的机理和拓广随机谐振在信号处理方面的应用。
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| 关 键 词： | 互信息 互相关系数 随机谐振 广义高斯噪声 |
| 文章编号： | 1673-5439（2006）06-0040-03 |
| 收稿时间： | 2006-05-15 |
| 修稿时间： | 2006-05-15 |
Stochastic Resonance in a Threshold System for Generalized Gaussian Noise |
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| WANG You-guo. Stochastic Resonance in a Threshold System for Generalized Gaussian Noise[J]. JJournal of Nanjing University of Posts and Telecommunications, 2006, 26(6): 40-42 |
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| Authors: | WANG You-guo |
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| Affiliation: | College of Mathematics and Physics, Nanjing University of Posts and Telecommunications, Nanjing 210003 China |
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| Abstract: | This paper discusses stochastic resonance(SR) in a threshold system based on two representative measures(the mutual information and the cross correlation coefficient) for generalized Gaussian noise.When the input signal is subthreshold,SR exists and the efficacy of SR reduces as the exponent parameter in noise distribution becomes small.These results can help us to find the SR mechanism and extend the applicability of SR in signal processing. |
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| Keywords: | Mutual information Cross correlation coefficient Stochastic resonance Generalized Gaussian noise. |
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