王梦蛟^1,,,
邓勇¹,
李志军¹,
曾以成²
1.湘潭大学自动化与电子信息学院 湘潭 411105
2.湘潭大学物理与光电工程学院 湘潭 411105
基金项目:国家自然科学基金(11747087)，湖南省自然科学基金(2019JJ50624)，湖南省教育厅科学研究项目(17C1530)，广东省自然科学基金(2017A030310659)

详细信息

作者简介:王梦蛟：男，1983年生，讲师，硕士生导师，研究方向为非线性系统动力学分析及其电路实现、信号噪声抑制和特征提取
邓勇：男，1995年生，硕士生，研究方向为非线性系统、忆阻器混沌系统
李志军：男，1973年生，教授，硕士生导师，研究方向为混沌电路与系统、电流模式电路连续时间滤波器设计
曾以成：男，1962年生，教授，博士生导师，研究方向为忆阻器混沌电路设计与应用、利用混沌电路系统进行微弱信号检测

通讯作者:王梦蛟　wangmengjiao_1983@163.com

中图分类号:TN601

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出版历程

收稿日期:2019-08-23
修回日期:2020-02-28
网络出版日期:2020-03-10
刊出日期:2020-06-04

Bursting, Coexistence Analysis and DSP Implementation of Duffing System Based on Hyperbolic-tangent Memristor

Mengjiao WANG^1,,,
Yong DENG¹,
Zhijun LI¹,
Yicheng ZENG²
1. College of Automation and Electronic Information, Xiangtan University, Xiangtan 411105, China
2. School of Physics and Optoelectric Engineering, Xiangtan University, Xiangtan 411105, China
Funds:The National Natural Science Foundation of China (11747087), The Natural Science Foundation of Hunan Province (2019JJ50624), The Research Foundation of Education Department of Hunan Province (17C1530), The Natural Science Foundation of Guangdong Province(2017A030310659)


摘要
摘要:忆阻器作为第4种基本电路元件由蔡少棠首次提出，它的提出为混沌电路的设计和工程应用提供了新思路。该文通过在Homles型Duffing系统中引入一个双曲正切忆阻模型，得到了一个新忆阻Duffing非自治系统。利用转换相图、相图、Lyapunov指数等，揭示了该系统具有振荡尖峰数目可控簇发、非完全对称双边簇发、非完全对称的簇发共存、多种周期混沌共存等新颖动力学行为。并通过分岔图及平衡点分析，研究了其簇发产生机理。采用Multisim电路仿真与数字信号处理平台(DSP)对系统进行了硬件实现，与理论分析基本一致的实验结果证明该系统是可行的且是物理可实现的。
关键词:忆阻器/
Duffing/
簇发/
延时分岔/
共存
Abstract:Memristor is first proposed by Chua as the fourth basic circuit element, which provides a novel idea for the design and engineering application of chaotic circuits. A novel memristive Duffing nonautonomous system is obtained by introducing a hyperbolic-tangent memristor into the Homles type Duffing system. By using the transformed phase portraits, phase portraits, Lyapunov exponents, etc., it is revealed that the system has novel dynamical behaviors such as bursts with controllable number of oscillation spikes, non-completely symmetrical bilateral bursts, coexistence of non-completely symmetrical bursts, multiple coexistence of chaos and period. The mechanism of bursting is studied by analysis of equilibrium point and bifurcation diagram. Multisim circuit simulation and Digital Signal Processing platform (DSP) are used to implement the system in hardware, and the experimental results basically consistent with the theoretical analysis prove that the system is feasible and physically achievable.
Key words:Memristor/
Duffing/
Bursting/
Delayed bifurcation/
Coexistence



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