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Stochastic Resonance in the Iodate-Arsenic(Ⅲ) Reaction
Jiang Yongjuna,Zhong Shi,Xin Houwen
Author NameAffiliation
Jiang Yongjuna Center of Nonlinear Science,University of Sciance e and Technology of China, Hefei 230026 
Zhong Shi Department of Chemical Physics, University of Sciance e and Technology of China, Hefei 230026 
Xin Houwen Center of Nonlinear Science,University of Sciance e and Technology of China, Department of Chemical Physics, University of Sciance e and Technology of China, Hefei 230026 
Abstract:
We demonstrate the phenomenon of stochastic resonance in the bistable IodateArsenic (Ⅲ) reaction with a sinusoidal signal and a gauss white noise imposed on the flow rate by computer simulation. With the help of the signal and noise, the system hops between the two steady state. From the analysis of the time series output, the signal is amplified by noise.When stochastic resonance is achieved, the signal-to-noise ratio pass through a maximum at an optimal noise level.
Key words:  Stochastic resonance, Signal-to-noise ratio, Siganl, Noise
FundProject:国家自然科学基金资助课题(No.29673039)
IO3--AsO33-化学反应中的随机共振
蒋勇军,钟实,辛厚文
摘要:
通过计算机模拟,在IO3--AsO33-化学双稳体系中,对反应控制参量加入周期信号和高斯噪声,体系由于信号和噪声的作用发生上下态之间相互跃迁.计算输出时间序列的功率谱,发现信号在噪声的作用下被放大,在某一最佳噪声强度下,存在一个最大的信噪比输出,表现出随机共振的特征。
关键词:  随机共振  信噪比  信号  噪声  化学双稳态
DOI:10.1088/1674-0068/13/2/161-164
分类号: