Signal-to-noise ratio gain by stochastic resonance in a bistable system

被引：50

作者：

Gingl, Z

Vajtai, R

Kiss, LB

机构：

[1] Uppsala Univ, Div Solid State Phys, Angstrom Lab, SE-75121 Uppsala, Sweden

[2] Attila Jozsef Univ, Dept Expt Phys, H-6720 Szeged, Hungary

来源：

CHAOS SOLITONS & FRACTALS | 2000年 / 11卷 / 12期

基金：

匈牙利科学研究基金会;

关键词：

D O I：

10.1016/S0960-0779(99)00131-9

中图分类号：

O1 [数学];

学科分类号：

0701 ; 070101 ;

摘要：

It was shown recently that the signal-to-noise ratio (SNR) could be improved by stochastic resonance (SR) in certain monostable systems and certain systems with monotonous nonlinearity working in the nonlinear response (NLR) regime. Here we demonstrate that a simple bistable system driven by periodic pulse train and band-limited Gaussian white noise can also provide an SNR gain. We show the reasons why SNR gain had not been found in double well potential systems, despite strong efforts made during the last 15 years. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：1929 / 1932

页数：4

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