Network synchronization and application of chaotic Lur'e systems based on event-triggered mechanism

摘要

The master-slave synchronization problem for a class of chaotic systems is investigated in this paper. It is assumed that quantized sampled measurement with constant delay is available for the controller, and event-triggered mechanism is introduced to decide whether the signal to be quantized should be transmitted. By taking the quantized synchronization error as control signal and constructing appropriate Lyapunov functional, a new sufficient condition for the networked synchronization of chaotic Lur'e systems with quantized feedback based on event-triggered mechanism is obtained. The master-slave synchronization of chaotic Chua's circuit system is simulated to demonstrate the efficiency of the proposed approach. The application to the secure communication is also investigated by using the chaotic nature of the unified attractors and the proposed synchronization mechanism.