具有乘性色噪声的线性振荡器的随机共振

研究了具有耦合的两个乘性色噪声的欠阻尼线性振荡器的随机共振现象.基于线性系统理论,得到了平均输出幅度增益的精确表达式.分析表明,系统的输出幅度增益及增益的峰值高度是耦合噪声强度、这两种色噪声的强度和相关速率以及外场驱动频率的非单调函数.

Stochastic Resonance in a Linear Oscillator Driven by Multiplicative Noises

This paper studies A periodically driven underdamped linear oscillator subject to two coupling multiplicative colored noises and works out the explicit expression of the output amplitude gain (OAG) of the oscillator based on the linear system theory. It is found that the OAG and its peak height is a non-monotonic function of the coupling strength between the two noises, the intensities and correlation rates of the noises as well as the external field frequency.