Open AccessStochastic resonance in an asymmetric bistable system driven by mixed periodic force and noises
Author(s) -
Zhou Bing-Chang,
Xu Wei
Publication year - 2007
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.56.5623
Subject(s) - harmonics , bistability , stochastic resonance , asymmetry , physics , noise (video) , resonance (particle physics) , multiplicative function , multiplicative noise , coupling (piping) , periodic function , statistical physics , quantum electrodynamics , quantum mechanics , mathematical analysis , mathematics , computer science , materials science , telecommunications , signal transfer function , voltage , artificial intelligence , transmission (telecommunications) , analog signal , metallurgy , image (mathematics)
The phenomenon of stochastic resonance (SR) in an asymmetric bistable system driven by correlated multiplicative and additive noise and two periodic fields is investigated. Analytic expressions of the signal-to-noise ratio (SNR) for fundamental and higher harmonics are derived using the two-state theory. The SR appears in both fundamental and higher harmonics. Moreover, the suppression exists for higher harmonics. The effects of static asymmetry and the noise intensity and the strength of coupling between noises on the SNR are studied.