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计量学报  2021, Vol. 42 Issue (10): 1372-1379    DOI: 10.3969/j.issn.1000-1158.2021.10.17
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Atangana-Baleanu分数阶双稳系统的随机共振现象
汪洋百慧,郑永军,罗哉
中国计量大学 计量测试工程学院,浙江 杭州 310018
Stochastic Resonance Phenomenon of Atangana-Baleanu Fractional Bistable System
WANG Yang-baihui,ZHENG Yong-jun,LUO Zai
College of Metrology and Measurement Engineering, China Jiliang University, Hangzhou, Zhejiang 310018, China
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摘要 针对基于常用分数阶微积分对随机共振现象的研究存在奇异性的问题,提出了基于Atangana-Baleanu分数阶微积分的双稳系统随机共振现象的研究方法。首先,根据Atangana-Baleanu分数阶微积分的定义构造了用于描述随机共振系统的Langevin方程;其次,通过改进的Oustaloup算法对其近似化求解;最后,编写仿真程序,利用控制单一变量法研究参数变化对随机共振的影响。仿真结果表明:噪声强度一定时改变分数阶求导阶次,分数阶求导阶次与输出信号的功率谱值呈非线性关系且存在一个最佳分数阶求导阶次使系统产生随机共振;分数阶求导阶次一定时改变噪声强度,噪声强度与输出信号的功率谱值呈非线性关系且存在一个最佳噪声强度使系统产生随机共振。
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汪洋百慧
郑永军
罗哉
关键词 计量学随机共振Atangana-Baleanu分数阶微积分改进Oustaloup算法双稳系统    
Abstract:Aiming at the problem of singularity in the study of stochastic resonance based on commonly used fractional calculus, a research method of stochastic resonance in bistable systems based on Atangana-Baleanu fractional calculus is proposed. First, according to the definition of Atangana-Baleanu fractional calculus, the Langevin equation is constructed to describe the stochastic resonance system. Second, it is approximated by the improved Oustaloup algorithm. Finally, simulation program is written to study the effect of parameter changes on stochastic resonance using the single variable control method. The simulation results show that when the noise intensity is constant, by changing the fractional order derivative order, there is a nonlinear relation between the order of fractional derivative and the power spectrum of the output signal and there is an optimal order of fractional derivative to generate stochastic resonance. When the order of fractional derivative is constant, by changing the noise intensity, there is a nonlinear relation between the noise intensity and the power spectrum value of the output signal and there is an optimal noise intensity to generate stochastic resonance.
Key wordsmetrology    stochastic resonance    Atangana-baleanu fractional calculus    improved Oustaloup algorithm    bistable system
收稿日期: 2020-05-06      发布日期: 2021-10-18
PACS:  TB973  
  TB936  
基金资助:国家自然科学基金(51775530)
通讯作者: 郑永军(1977-),浙江宁海人,中国计量大学副教授,主要研究方向为晶圆CMP终点检测算法。Email:davidzhyj@cjlu.edu.cn     E-mail: davidzhyj@cjlu.edu.cn
作者简介: 汪洋百慧(1996-),江苏徐州人,中国计量大学硕士研究生,主要研究方向为信号处理与分析。Email:Flowerwanzi@163.com
引用本文:   
汪洋百慧,郑永军,罗哉. Atangana-Baleanu分数阶双稳系统的随机共振现象[J]. 计量学报, 2021, 42(10): 1372-1379.
WANG Yang-baihui,ZHENG Yong-jun,LUO Zai. Stochastic Resonance Phenomenon of Atangana-Baleanu Fractional Bistable System. Acta Metrologica Sinica, 2021, 42(10): 1372-1379.
链接本文:  
http://jlxb.china-csm.org:81/Jwk_jlxb/CN/10.3969/j.issn.1000-1158.2021.10.17     或     http://jlxb.china-csm.org:81/Jwk_jlxb/CN/Y2021/V42/I10/1372
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