Parameter Identification and Synchronization with Diverse Structures of Uncertain Lorenz Systems

A parameter identifier and a synchronization controller are designed,and parameter identification and synchronization with diverse structures are discussed for uncertain chaotic systems.Structures of the identifier and the controller are presented based on stability theory,and uncertain Lorenz chaotic system and Rossler chaotic system are taken as examples to demonstrate the effectiveness of the presented method.The simulation results show that global synchronization between the uncertain Lorenz chaotic system and the Rossler chaotic system can be achieved under the coaction of the identifier and the controller,and all the parameters of the Lorenz chaotic system can be identified.