中文摘要：

为了实现保密通讯系统的信道加密，从动力学与控制的角度考虑具有通讯时滞的保密通讯系统的同步问题．基于时滞动力系统的脉冲控制理论，提出了在通讯时滞环境下的一种脉冲控制方案，给出了时滞混沌系统的一些简单而又一般的同步化准则．结果表明，脉冲控制矩阵在寻求保密通讯同步的过程中有着非常重要的作用．

英文摘要：

For the purpose of achieving the communication security in the encryption systems, synchronization problems of coupled chaotic systems with communication delays are considered in the view of dynamics and control. By utilizing the impulsive control theory on delayed dynamical systems, an impulsive control scheme of the system with time delays is proposed, and some simple yet generic criteria for solving the synchronization problem are analytically derived. It is shown that the impulsive control matrix in the proposed scheme plays a key role in seeking synchronization.