Controlling of stochastic resonance and noise enhanced stability induced by harmonic noises in a bistable system

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• 作者：Chao-Jie Wang^a ; Fei Long^b ; ^{filippo999@126.com} ; Pei Zhang^c ; Lin-Ru Nie^a
• 关键词：Harmonic noise ; Stochastic resonance ; Bistable system
• 刊名：Physica A: Statistical Mechanics and its Applications
• 出版年：2017
• 出版时间：1 April 2017
• 年：2017
• 卷：471
• 期：Complete
• 页码：288-294
• 全文大小：614 K
• 卷排序：471

文摘

Stochastic resonance (SR) and noise enhanced stability (NES) in a bistable system driven by an additive harmonic noise and a multiplicative harmonic noise is investigated. Through numerical simulation, we obtained the power spectrum by the Fourier transformation on time series. The results indicate that (i) for certain values of the parameters of additive harmonic noise ΓΓ, ΩΩ and the noise intensity DD, the SR phenomenon occurs. It means we can control the SR phenomenon by modulating the parameters of harmonic noise; (ii) the NES phenomenon occurs at certain values of the parameters of multiplicative harmonic noise ΓΓ, ΩΩ and the multiplicative noise intensity QQ. Most important, the NES phenomenon can also be controlled by modulating the parameters of harmonic noise.