一种单稳随机共振系统信噪比增益的数值研究

Numerical research of signal-to-noise ratio gain on a monostable stochastic resonance

采用四阶Runge-Kutta数值求解方法,发现一种单稳随机共振系统信噪比增益的随机共振现象,并且在一定的条件下系统信噪比增益大于1.通过调节单稳随机共振系统参数可以改变信噪比增益.本文结果拓展了这类单稳的已有研究范围,在信号检测与处理以及通信领域有着潜在的应用价值.

We report a stochastic resonance with the signal-to-noise ratio gain in a monostable system,by the fourth-order Runge-Kutta method,and on some occasions the signal-to-noise ratio gain exceeds 1.Tuning the parameters in the monostable stochastic resonance system can change the signal-to-noise ratio gain.This research result is the latest development of the monostable stochastic resonance,and has potential applications in the signal detection,processing and communications.