Open AccessStochastic resonance of square wave signal in an overdamped harmonic oscillator
Author(s) -
Lu Zhi-Xin,
Cao Li
Publication year - 2011
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.60.110501
Subject(s) - stochastic resonance , harmonic oscillator , resonance (particle physics) , physics , harmonic , signal (programming language) , square (algebra) , statistical physics , square wave , noise (video) , mathematics , quantum mechanics , computer science , geometry , voltage , artificial intelligence , image (mathematics) , programming language
The output power and the signal-to-noise ratio of an overdamped harmonic oscillator are calculated in the case of square wave signal input. The corresponding stochastic resonance phenomenon and the comparison with the case of cosine signal input are discussed. Results reveal that there appear the stochastic resonances in these two cases, and the phenomenon in which the resonance and suppression are coexistent, but the coexistence phenomenon appears in the different stochastic resonance curves for these two models.