Network synchronization and application of chaotic Lur'e systems based on event-triggered mechanism
Network synchronization and application of chaotic Lur'e systems based on event-triggered mechanism
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DOI：
10.1007/s11071-015-2498-y
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发表时间：
2016
影响因子：
5.6
通讯作者：
Zhou Lei
中科院分区：
文献类型：
--
作者：
Liu Shuijing;Zhou Lei
研究了一类混沌系统的主从同步问题。该方法假设控制器可获得具有恒定延迟的量化采样测量值，并引入事件触发机制来决定是否发送待量化信号。以量化同步误差为控制信号，通过构造适当的李雅普诺夫泛函，得到了基于事件触发机制的混沌Lur 'e系统量化反馈网络同步的一个新的充分条件.对混沌蔡氏电路系统的主从同步进行了仿真，验证了该方法的有效性。利用统一吸引子的混沌特性和所提出的同步机制，研究了其在保密通信中的应用。
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.