Open AccessStochastic resonance in a time-delayed asymmetric mono-stable system modulated by periodic rectangular signal
Author(s) -
Xiaoyan Zhang,
Wei Xu,
Bingchang Zhou
Publication year - 2012
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.61.030501
Subject(s) - stochastic resonance , white noise , multiplicative function , resonance (particle physics) , physics , multiplicative noise , signal (programming language) , noise (video) , gaussian noise , additive white gaussian noise , periodic function , signal to noise ratio (imaging) , intensity (physics) , gaussian , mathematics , statistical physics , mathematical analysis , statistics , optics , computer science , quantum mechanics , telecommunications , signal transfer function , algorithm , artificial intelligence , image (mathematics) , programming language , transmission (telecommunications) , analog signal
We investigated the stochastic resonance of the time-delayed mono-stable system modulated by periodic rectangular signal and Gaussian white noises. The expression of signal-to-noise ratio (SNR) is obtained, and the stochastic resonance phenomenon is found in this system. The study shows that the effects of multiplicative and white noise intensity on the SNR are different. In the SNR-D plot, the phenomenon of resonance and suppression exists together. When the value of the bias of system |r| is bigger or the ratio of multiplicative and white noise intensity D/ is less than 1, the stochastic resonance phenomena in the SNR- plots disappear.