具有隐藏超级多稳态的新5维忆阻超混沌系统的动力学分析

Dynamics Analysis of a New Five-dimensional Memristive Hyperchaotic System with Hidden Extreme Multistability

  • 摘要: 为进一步研究忆阻器及其应用,提出了一个具有隐藏吸引子的光滑5维忆阻超混沌系统,通过绘制相图和李雅普诺夫指数谱,验证了系统的混沌特征。分析了系统的分岔参数,实现了对两个状态变量的偏移增量控制,进行了吸引子的调幅分析。在此系统中发现了基于初值的超级多稳态现象。揭示了当初值分别沿着x轴、u轴及x-u平面内的不同直线移动时,关于吸引子偏移增量控制的新现象。最后,建立了系统的非线性电路模拟方程,验证了所提出的磁通控制忆阻系统物理实现的可行性。

     

    Abstract: To further study memristors and their applications, a smooth five-dimensional memristive hyperchaotic system with hidden attractors is proposed. Chaotic characteristics of the system are verified by depicting phase diagrams and the Lyapunov exponent spectrum. The bifurcation parameter of the system is analyzed, and the offset boosting of two state variables is realized. The amplitude control of the attractor is analyzed. The extreme multistability phenomenon in the system is also found based on initial values. When initial values move along the x-axis, u-axis, and different straight lines in the x-u plane, new phenomena on the offset boosting of the attractors are revealed. Finally, a nonlinear circuit simulation equation of the system is established, verifying the feasibility of physical realization using the derived flux-controlled memristor system.

     

/

返回文章
返回