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随机共振在信号处理中应用研究的回顾与展望 被引量:18

Development and Prospect of Stochastic Resonance in Signal Processing
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摘要 非线性系统、弱的驱动信号和适量的噪声:在一定条件下,三者的相互协作使得噪声在一定程度上能够对信号起到增强的作用,这种反常的现象被定义为随机共振.本文以信号的估计与检测为主线,分析了推动随机共振应用发展的信息学与生物学背景,综述了随机共振在工程信号处理方面的最新进展,深入的介绍了一些模型以及存在的问题,并指出了进一步研究的方向. Noise sometimes can improve the performance of a signal-processing system when nonlinearity, weak signal and noise coexist. The counter-intuitive phenomenonis termed as stochastic resonance.Based on signal detection and estimation,the information-theoretic and biological background of stochastic resonance is introduced in the paper, and its development history, current and future challenges are reviewed in detail.
作者 张雷 宋爱国
出处 《电子学报》 EI CAS CSCD 北大核心 2009年第4期811-818,共8页 Acta Electronica Sinica
基金 国家自然科学基金(No.60775057)
关键词 随机共振 信号检测 信号估计 非线性信号处理 内蕴随机共振 stochastic resonance signal detection signal estimation nonlinear signal processing implicit stochastic resonance
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