A novel six-dimensional hyperchaotic system with self-excited attractors and its chaos synchronisation Online publication date: Mon, 11-Apr-2022
by Ahmed S. Al-Obeidi; Saad Fawzi Al-Azzawi
International Journal of Computing Science and Mathematics (IJCSM), Vol. 15, No. 1, 2022
Abstract: A few researches are available in the aspect of high dimensional nonlinear dynamical systems. This paper presents a novel 6-D continuous real variable hyperchaotic system with self-excited attractors, consists of 17-terms and various characteristics which include equilibria and their stability, Lyapunov exponents, chaos synchronisation. Firstly, a novel model with linear feedback controller is proposed. The error dynamics for complete control strategy is found. Three different suitable and effective controllers are designed to stabilise this error by using nonlinear control and based on two main tools: Lyapunov stability theory and the linearisation method. Finally, comparison between the two tools was done. The proposed controller is effective and convenient to achieve chaos synchronisation of the new systems. Moreover, numerical simulations were carried out by using MATLAB to validate all the synchronisation phenomena derived in this paper.
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