一组混沌保密通信系统的理论探讨

混沌保主系统是用混沌系统中的状态作为密钥信号对信息信号进行编码，从而提高信号传输时的抗破译能力。信息信号在接收端系统被恢复出来，其中的关键在于接收端与发送端混沌系统要达到同步。本文构造了保密通信系统的发送端和接收端混沌系统，交 沌的同步归结为一个非线性一

A Group of Chaotic Systems for Secure Communicaion

A signal is coded by a coding key which is emerged from chaos and the security of the signal is improved. When the signal is recovered from a receiver, the key technique is to achieve synchronization between a sender and a receiver before decoding. Chaotic systems in the sender and the receiver are presented in this paper. Moreover the synchronization between the sender and the receiver is reduced to an initial value problem and conditions of synchronization is discussed theoretically. The secure method using chaotic phenomena existed in Cellular Neural Network (CNN) is explained theoretically.