Vibrational and Stochastic Resonance in the FitzHugh–Nagumo Neural Model with Multiplicative and Additive Noise  

作　　者：HE Zheng-You ZHOU Yu-Rong 何正友;周玉荣(School of Electrical Engineering,Southwest Jiaotong University,Chengdu 610031)

机构地区：[1]School of Electrical Engineering,Southwest Jiaotong University,Chengdu 610031

出　　处：《Chinese Physics Letters》2011年第11期41-44,共4页中国物理快报（英文版）

摘　　要：The vibrational resonance and stochastic resonance phenomena in the FitzHugh–Nagumo(FHN)neural model,driven by a high-frequency(HF)signal and a low-frequency(LF)signal and by coupled multiplicative and additive noises,is investigated.For the case that the frequency of the HF signal is much higher than that of the LF signal,under the adiabatic approximation condition,the expression of the signal-to-noise ratio(SNR)with respect to the LF signal is obtained.It is shown that the SNR is a non-monotonous function of the amplitude and frequency of the HF signal.In addition,the SNR varies non-monotonically with the increasing intensities of the multiplicative and additive noise as well as with the increasing system parameters of the FHN model.The influence of the coupling strength between the multiplicative and additive noises on the SNR is discussed.

关 键 词：noise ADDITIVE MULTIPLICATIVE 

分 类 号：TN9[电子电信—信息与通信工程]