Synchronizing chaos by driving parameter

The method of synchronizing chaos based on driving a certain parameter of c haotic systems using the chaotic signal outside is proposed. The Logistic m ap and the Lorenz systems are taken as two typical examples. The simulation results show that two identical chaotic systems can be synchronized comple tely when the change scope of the parameter driven is large enough. On the other hand, the different synchronization states depending on the initial c onditions and the controlling parameter are found in Lorenz systems.