基于ARM的混沌帧同步系统设计与实现

Design and Implementation of Chaotic Frame Synchronization System Based on ARM

在混沌同步保密通信和混沌加密系统中,混沌同步是一个关键问题。针对以混沌信号为密钥的序列密码系统,提出一种新的混沌帧同步方法:在发送每一数字加密帧起始点前,插入一组帧同步码,构成一帧传送数据信息;接收端从送来的数据信号中提取帧同步码,找到加密信息帧的起始点,实现收发双方混沌加密信号同步。给出了基于ARM的硬件实现方案。实验证明此方法可行,捕捉与同步性能良好。

Chaos synchronization is a key problem in chaotic synchronous secure communication and chaotic encryption system. In this paper,a new chaotic frame synchronization method is proposed for the sequence cryptographic system with chaotic signal. A frame synchronization code is inserted to form a frame data before sending each starting point of the digital encryption frame. By extracting the frame synchronization code from the incoming data signal,the receiver can find the starting point of the encrypted information frame and realize the synchronization of the chaotic encryption signals between the receiver and sender. The hardware implementation scheme is presented based on ARM. Experiments show that this method is feasible and the capture and synchronization performance is good.