Adaptive Generalized Combination Complex Synchronization and Parameter Identification of Hyperchaotic Complex Systems
WANG Shibing①② WANG Xingyuan①
①(Faculty of Electronic Information and Electrical Engineering, Dalian University of Technology, Dalian 116024, China) ②(School of Computer and Information Engineering, Fuyang Normal University, Fuyang 236041, China)
Based on adaptive control and Lyapunov stability theory, a novel adaptive Generalized Combination Complex Synchronization (GCCS) scheme is proposed for nonidentical hyperchaotic complex systems with unknown parameters. Firstly, the definition of GCCS is presented, and synchronization of drive-response systems is transformed to the zero solution analysis of the error dynamical system. Secondly, a nonlinear feedback controller and parameter update laws are theoretically designed, wherein error feedback gains are introduced to control synchronization speed. Finally, GCCS among the hyperchaotic complex Lorenz system, complex Chen system, and complex Lü system is carried out to verify the correctness and effectiveness of the proposed scheme by numerical simulation.
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