Stochastic resonance in a discrete neuron with time delay and two different modulation signals

被引：18

作者：

Wang, Can Jun ^{[1
,2
]}

Yang, Ke Li ^{[1
,2
]}

Qu, Shi Xian ^{[1
]}

机构：

[1] Shaanxi Normal Univ, Sch Phys & Informat Technol, Inst Theoret & Computat Phys, Xian 710062, Peoples R China

[2] Baoji Univ Arts & Sci, Nonlinear Res Inst, Baoji 721016, Peoples R China

来源：

PHYSICA SCRIPTA | 2014年 / 89卷 / 10期

基金：

中国国家自然科学基金;

关键词：

time delay; stochastic resonance; discrete neuronal model; VIBRATIONAL RESONANCE; NOISE; COHERENCE;

D O I：

10.1088/0031-8949/89/10/105001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Stochastic resonance in an excitable neuron based on the Rulkov map with noise, delay feedback, low-frequency signal and high-frequency signal is investigated numerically. The results show that there exist an optimal noise intensity, optimal time delay and optimal amplitude of the high-frequency signal at which the phase synchronisation between the low-frequency input signal and the output signal is the best. The Fourier coefficient is calculated to measure the stochastic resonance. It is found that the existence of a maximum in the Q - tau, Q - B and Q - D plots is the identifying characteristic of the stochastic resonance phenomenon.

引用

页数：7

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