Effects of asymmetric Levy noise in parameter-induced aperiodic stochastic resonance

被引:34
作者
Zeng, Lingzao [1 ]
Xu, Bohou [2 ]
机构
[1] Zhejiang Univ, Inst Soil & Water Resources & Environm Sci, Hangzhou 310029, Zhejiang, Peoples R China
[2] Zhejiang Univ, Inst Appl Mech, State Key Lab Fluid Power Transmiss & Control, Hangzhou 310027, Zhejiang, Peoples R China
关键词
Levy noise; Fractional Fokker-Planck equation; Bistable system; Aperiodic stochastic resonance; FINITE-DIFFERENCE APPROXIMATIONS; ANOMALOUS DIFFUSION; FLIGHTS;
D O I
10.1016/j.physa.2010.07.032
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We study properties of parameter-induced aperiodic stochastic resonance in the presence of asymmetric Levy noise. The system performance is characterized by the bit error rate. Investigations are based on the numerical solution of the space-fractional Fokker-Planck equation and Monte Carlo simulations. After choosing the optimal detection threshold, it is shown that the skewness parameter beta has very limited influence on the system performance. Under the same conditions, the system performance is slightly reduced with the increasing beta. The stability index alpha has the dominant effects on the system performance. The lower value of alpha leads to the better system performance. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码:5128 / 5136
页数:9
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