带有不确定性的不同超混沌系统的同步及其在保密通信中的应用

基于Lyapunov稳定性理论，给出了带有不确定参数和外界扰动的超混沌Lu系统与超混沌R／Sssler系统同步的自适应控制器及参数更新律．系统一旦达到同步，隐藏在发射系统中的信息信号能够在接收系统中得到准确恢复．这里的同步策略只需要利用未知参数和外界扰动的有界性，不需要求出其具体的边界及Lipschitz常数值．数值模拟验证了该方案的有效性．

Synchronization between two different hyperchaotic systems with uncertainties and its application to secure communications

Based on Lyapunov stability theory, an adaptive controller and the parameters update laws were designed to synchronize hyperchaotic Lu system, with unknown parameters and external disturbance, and hyperchaotic Rossler system. Once the synchronization is achieved, the information signals hidden in the transmitter can be recovered exactly at the receiver. The synchronization strategy only uses the boundedness of the unknown parameters and external disturbance, and doesn＇t have to determine those bounds and Lipschitz constants in advance. Numerical simulation results verify the effectiveness of the method.