基于混沌系统特殊的性质,讨论了一类具有未知参数干扰的时滞不确定混沌系统的同步问题,并且该系统状态滞后时间是未知的,这样系统在同步通信中具有更好的保密性。首先针对未知的驱动系统构造一个确定的响应系统,再基于Lyapunov-Krasovskii函数(LKF),证明了混沌系统一致渐近同步。最后,对一个混沌系统进行了仿真研究,结果表明设计的方法是有效的。
Based on the special features of chaotic systems,synchronization of a class of time-delay chaotic systems with parameters perturbation is discussed.The knowledge of the delay time is unknown so the system has better security in synchrononus communications.A new response chaotic system is designed,and then based on Lyapunov-Krasovskii function,uniform approach synchronization of chaotic systems is verified.Finally,a numerical example is given and the simulation results show the correctness of the conclusion.