Adaptive synchronization between Chua's circuit and Unified chaotic system

This letter presents synchronization problem of two different chaotic systems when the parameters of the drive and response systems are unknown or uncertain. Based on Lyapunov stability theory, an adaptive synchronization controller is designed and analytic expression of the controller and the update rule of parameters are developed. Adaptive synchronization between Chua's circuit and Unified chaotic system is taken as an illustrative example to show the effectiveness of the proposed method.