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Complex Systems and Complexity Science  2024, Vol. 21 Issue (1): 74-84    DOI: 10.13306/j.1672-3813.2024.01.010
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Analysis and Application of Chaotic System with Polynomial Absolute Valued Function
GAO Zhengzhong, DU Xiang
College of Electrical Engineering and Automation, Shandong University of Science and Technology, Qingdao 266510, China
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Abstract  In order to get more complex dynamical properties, a chaotic system with cubic polynomial taking absolute value function is designed. The theoretical model of the chaotic system is described by a set of nonlinear equations with three state variables. The basic properties and the dynamic characteristics of the system like phase diagram, time domain waveform, Lyapunov exponent, Poincaré map and bifurcation diagram are analyzed. Under certain parameter conditions, the system has periodic and chaotic properties, and there are coexistence attractors or aggregation attractors when the initial values are symmetrical. In addition, when some system parameters change, the system has constant dynamic characteristics, when the initial value of the state variable changes, the dynamic characteristics of the system also remain unchanged. The correctness of the theory is verified by circuit simulation. Based on the newly designed chaotic system, an encryption scheme is designed, and the encryption performance is analyzed, which shows the effectiveness of the encryption scheme.
Key wordschaos      dynamics      coexisting attractors      coexisting bifurcation      image encryption     
Received: 18 May 2022      Published: 26 April 2024
ZTFLH:  TP271.62  
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GAO Zhengzhong
DU Xiang
Cite this article:   
GAO Zhengzhong,DU Xiang. Analysis and Application of Chaotic System with Polynomial Absolute Valued Function[J]. Complex Systems and Complexity Science, 2024, 21(1): 74-84.
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https://fzkx.qdu.edu.cn/EN/10.13306/j.1672-3813.2024.01.010     OR     https://fzkx.qdu.edu.cn/EN/Y2024/V21/I1/74