A generalized finite-time analytical approach for the synchronization of chaotic and hyperchaotic systems
Multidiscipline Modeling in Materials and Structures
ISSN: 1573-6105
Article publication date: 10 December 2020
Issue publication date: 6 April 2021
Abstract
Purpose
The purpose of this paper is to develop some interesting results in the field of chaotic synchronization with a new finite-time controller to reduce the time of convergence.
Design/methodology/approach
This article proposes a finite-time controller for the synchronization of hyper(chaotic) systems in a given time. The chaotic systems are perturbed by the model uncertainties and external disturbances. The designed controller achieves finite-time synchronization convergence to the steady-state error without oscillation and elimination of the nonlinear terms from the closed-loop system. The finite-time synchronization convergence reduces the hacking duration and recovers the embedded message in chaotic signals within a given preassigned limited time. The free oscillation convergence keeps the energy consumption low and alleviates failure chances of the actuator. The proposed finite-time controller is a combination of linear and nonlinear parts. The linear part keeps the stability of the closed-loop, the nonlinear part increases the rate of convergence to the origin. A generalized form of analytical stability proof is derived for the synchronization of chaotic and hyper-chaotic systems. The simulation results provide the validation of the accomplish synchronization for the Lu chaotic and hyper-chaotic systems.
Findings
The designed controller not only reduces the time of convergence without oscillation of the trajectories which can run the system for a given time domain.
Originality/value
This work is originally written by the author.
Keywords
Citation
Haris, M., Shafiq, M., Ibrahim, A. and Misiran, M. (2021), "A generalized finite-time analytical approach for the synchronization of chaotic and hyperchaotic systems", Multidiscipline Modeling in Materials and Structures, Vol. 17 No. 3, pp. 681-697. https://doi.org/10.1108/MMMS-06-2020-0131
Publisher
:Emerald Publishing Limited
Copyright © 2020, Emerald Publishing Limited