Adaptive generalized synchronization for chaotic systems with unknown parameters based on observer

An adaptive synchronization control method based on state observer is proposed as for generalized synchronization for chaotic systems with unknown parameters. This method uses a nonlinear state observer with a controller to realize generalized synchronization and estimate the unknown parameters. Furthermore GS velocity can be improved according to configuration of poles, without a limit of stability of linear part of the chaotic system. The unified system is taken for verification, and the results of the simulation indicated the efficiency of this method.