期刊
NONLINEAR DYNAMICS
卷 104, 期 1, 页码 765-787出版社
SPRINGER
DOI: 10.1007/s11071-021-06299-1
关键词
Memristive chaos; Coupled memristor system; Extreme transient transitions; Hidden attractor; Heterogeneous multistability
资金
- growth project of young scientific and technological talents in Guizhou for colleges and universities [KY [2020]142, KY [2019]160]
By coupling two memristors, a method for constructing a high-dimensional memristive chaotic system is proposed, resulting in a five-dimensional chaotic system with double memristors. The system exhibits extreme transient behaviors, including various transitions and extreme multistability when changing initial conditions, validated using the spectral entropy algorithm.
By coupling a variable of the memristor in one memristive chaotic circuit with another memristor, an approach to construct a high-dimensional memristive chaotic system is proposed and a five-dimensional hidden chaotic system with double memristors is obtained. The Lyapunov fractal dimension and dynamics map of the system demonstrate that the system has extreme transient behaviors, such as chaos to period, chaos to quasi-period, quasi-period to another quasi-period, quasi-period to chaos, and chaos to another kind of chaos. The whole transition process experiences as many as 2, 3, 4, or even 5 different status. Besides, an interesting symmetric transient phenomenon is discovered and extreme multistability is also observed when changing the initial conditions. The extreme transient behavior is validated using the spectral entropy algorithm.
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