一个Modified Chen系统的混沌同步与加密

引进Observer同步方案，ModifiedChen混沌动力系统达到了较好的同步效果。两个已同步的ModifiedChen系统分别作为通信系统的传输器和接收器，分别利用两种不同的方式将信号加到传输端，实现了安全通信巾的加密与解密，从而验证了Observer混沌同步方案在安全通信系统中的有效性。

Synchronization of Modified Chen System with Application to Secure Communication

In this paper, an approach, based on the observer design, was introduced to achieve the synchronization of continuous-time chaotic systems. The proposed scheme was then applied to a modified Chen system and two modified Chen systems got synchronized perfectly. Combined with the chaotic masking technique, the two synchronized systems were used as the transmitter and the receiver of a secure communication system, respectively. Furthermore, two methods are used to inject the information signal into the chaotic drive-system at the transmitter. In addition, results were illustrated by two examples of signal transmission based on a pair of synchronizing modified Chen system, which presented the effectiveness of the application in secure communication system.