Stochastic resonance of cascaded bistable duffing system

被引：9

作者：

Lai Zhi-Hui ^{[1
]}

Leng Yong-Gang ^{[1
,2
,3
]}

Fan Sheng-Bo ^{[1
]}

机构：

[1] Tianjin Univ, Sch Mech Engn, Tianjin 300072, Peoples R China

[2] Tianjin Univ, Key Lab Mech Theory & Equipment Design, Minist Educ, Tianjin 300072, Peoples R China

[3] Tianjin Key Lab Nonlinear Dynam & Chaos Control, Tianjin 300072, Peoples R China

来源：

ACTA PHYSICA SINICA | 2013年 / 62卷 / 07期

基金：

高等学校博士学科点专项科研基金; 中国国家自然科学基金;

关键词：

cascaded bistable Duffing system; stochastic resonance; scale transformation; parameter adjustment;

D O I：

10.7498/aps.62.070503

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The stochastic resonance of cascaded bistable Duffing system (CBDS) has been studied in this paper. We have shown that with the appropriate adjustment of the parameters of the CBDS, such as the scale transformation coefficient, the damping ratio and the number of cascaded systems, the CBDS can not only achieve large or small parameter stochastic resonance, but also optimize the stochastic resonance result of a single bistable Duffing system (SBDS). That is, with the parameter adjustment, the stochastic resonance effect of the CBDS is much better than that of the SBDS. Furthermore, the CBDS has excellent filtering and smoothing characters for a square wave signal, which can be applied to the recovery of the square wave signal masked by heavy noise.

引用

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页数：9

共 20 条

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