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A Hidden Chaotic System with Multiple Attractors
Xiefu Zhang1,2, Zean Tian1,3, Jian Li2
1Institute of Advanced Optoelectronic Materials, Technology of School of Big Data and Information Engineering, Guizhou University, Guiyang 550025, China.
Abstract:
This paper reports a hidden chaotic system without equilibrium point. The proposed system is studied by the software of MATLAB R2018 through several numerical methods, including Largest Lyapunov exponent, bifurcation diagram, phase diagram, Poincaré map, time-domain waveform, attractive basin and Spectral Entropy. Seven types of attractors are found through altering the system parameters and some interesting characteristics such as coexistence attractors, controllability of chaotic attractor, hyperchaotic behavior and transition behavior are observed. Particularly, the Spectral Entropy algorithm is used to analyze the system and based on the normalized values of Spectral Entropy, the state of the studied system can be identified. Furthermore, the system has been implemented physically to verify the realizability.
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