| 用于微弱信号检测的随机共振系统设计 |
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| 引用本文： | 叶青华,黄海宁,张春华. 用于微弱信号检测的随机共振系统设计[J]. 电子学报, 2009, 37(1): 216-220 |
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| 作者姓名： | 叶青华 黄海宁 张春华 |
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| 作者单位： | 中国科学院声学研究所,北京,100190 |
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| 摘 要： | 随机共振(SR)作为一种能够利用噪声来提高系统输出信噪比的工具,近来得到越来越多的关注和研究.一个很大的问题是如何设计一个简单高效的SR系统.针对常见的微弱信号检测问题,我们分析了二值量化器和二值量化器阵列,推导出最优二值量化检测器和渐近最优阵列SR检测器,给出渐近最优阵列SR检测器的设计准则.根据理论分析结果,给出了鲁棒阵列SR检测器及基于噪声样本集合的参数选择算法,能够在未知背景噪声情形中获得较好的检测性能.
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| 关 键 词： | 微弱信号检测 随机共振 非线性系统 非高斯噪声 |
| 收稿时间： | 2006-12-04 |
Design of Stochastic Resonance Systems in Weak Signal Detection |
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| YE Qing-hua,HUANG Hai-ning,ZHANG Chun-hua. Design of Stochastic Resonance Systems in Weak Signal Detection[J]. Acta Electronica Sinica, 2009, 37(1): 216-220 |
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| Authors: | YE Qing-hua HUANG Hai-ning ZHANG Chun-hua |
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| Affiliation: | Institute of Acoustics;Chinese Academy of Sciences;Beijing 100190;China |
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| Abstract: | Stochastic Resonance(SR)is getting more and more attention in recent few years,as it can be used as a tool of using noise to enhance output signal-to-noise-ratio.One of the key problems is how to design a simple and efficient SR system.As for the weak signal detection,we analyzed two-state quantizers and two-state quantizer arrays,deduced the optimal two-state quantization detector and asymptotic optimal array SR detector,and gave out the designing criterion of asymptotic optimal array SR detector.According... |
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| Keywords: | weak signal detection stochastic resonance nonlinear systems non-Gaussian noise |
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