Chaotic synchronization between different chaotic systems

In order to realize the chaotic synchronization among different chaotic systems, a sliding mode control approach based on high gain state observer was presented. Using the normal form of the error system for the chaotic synchronization as the model, expanded the difference of the systematic structure to a new state, and designed a high gain state observer using the information observed as litde as possible. Then a sliding mode control strategy was proposed, which can be realized in physics. The strategy completed the chaotic synchronization among different chaotic systems successfully. Theory analysis and simulation results prove the feasibility and validity of the approach. It will be applicable in the field of chaotic secure communication.