随机参数诱导交流积分器中的随机共振研究

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振动与冲击 ›› 2010, Vol. 29 ›› Issue (3) : 197-199.

论文

随机参数诱导交流积分器中的随机共振研究

郭锋1;罗向东1;李少甫1;周玉荣2

作者信息 +

Research on the Stochastic Resonance induced by random parameter in an Alternating-Current Integrator

GUO Feng1; LUO Xiang-dong1;LI Shao-fu1; ZHOU Yu-rong2

Author information +

文章历史 +

摘要

研究了具有随机参数的交流积分器中的随机共振现象．基于线性系统理论，得到了系统输出信噪比的表达式．研究发现，输出信噪比是噪声强度、噪声相关率以及系统参数的非单调函数．信噪比随着激励信号频率的增大而增大，随着信号直流分量的增大而减小。

Abstract

The phenomenon of stochastic resonance in an alternating-current integrator with random parameter is investigated. The explicit expression of the output signal-to-noise ratio (SNR) of the system is obtained based on linear system theory. It is shown that the SNR is a non-monotonic function of the intensity and correlation rate of the noise as well as of the system parameter. The SNR increases with the increasing of the signal frequency, while it decreases with the increasing of the bias part of the input signal.

导出引用

郭锋;罗向东;李少甫;周玉荣. 随机参数诱导交流积分器中的随机共振研究[J]. 振动与冲击, 2010, 29(3): 197-199

GUO Feng;LUO Xiang-dong;LI Shao-fu;ZHOU Yu-rong. Research on the Stochastic Resonance induced by random parameter in an Alternating-Current Integrator [J]. Journal of Vibration and Shock, 2010, 29(3): 197-199