Chaos generalized synchronization control based on nonlinear state observer

As for chaotic systems with uncertain parameters, a generalized synchronization control method based on nonlinear state observer is proposed. The synchronization method regards the parameter vector as an additional state vector and the requests of designing observer are given. Then the systems have good generalized synchronization performances under this method. The theoretical analysis and numerical simulations on the Lorenz chaotic system and unified system show the effectiveness of the synchronization method.