基于信息论下阈值阵列模型中的阈上随机共振现象

Suprathreshold Stochastic Resonance in Threshold Array Model Based on Information Theory

研究了高斯混合噪声作用下阈值阵列模型中的阈上随机共振现象.通过建立阈值阵列模型,运用理论分析和数值仿真相结合的方法,分析了高斯混合噪声作用下高斯信号通过系统时的互信息.数值仿真表明,通过控制变量法,当阈值单元数目越多或者系统阈值越大时,阈上随机共振发生的现象更加明显.所得结论可以为进一步探索阈值阵列模型提供基础.

Suprathreshold stochastic resonance(SSR)in the threshold array model under Gauss mixture noise is studied.Combining the theoretical analysis with numerical simulation,the mutual information of Gauss signal passing through the system under Gauss mixture noise is analyzed by establishing a threshold array model in this paper.The numerical simulation shows that the phenomenon of suprathreshold stochastic resonance will be more obvious when the number of threshold units of or the threreshold value of the system is larger by controlling variables.This study provides some idesa for further exploring threshold array model.