调制解调方式伪随机跳变的数字保密通信  

Pseudo-random Hopping Based Secure Communication Applied to Modem Method

作　　者：冯建利[1] 

机构地区：[1]西安石油大学,陕西西安710065

出　　处：《探测与控制学报》2010年第2期34-37,共4页Journal of Detection & Control

摘　　要：针对以往保密通信系统复杂度高、物理实现难的不足,提出了一种调制解调方式基于伪随机序列跳变的数字保密通信新方法。该方法中,通信双方采用同步n阶m序列控制调制解调方式的跳变,使第三方难以捕获有效信息,实现数字通信的保密。在Matlab仿真平台上对二阶m序列控制三种简单调制解调方式的跳变进行性能仿真表明:采用非同步跳变的解调方式无法可靠通信,该方法具有一定的保密性并且实现简单。Against the shortcoming of previous secure communication system such as high complexity and difficult physical implementation,the pseudo-random sequence hopping based secure communication is proposed, In this method, both of the communication sides use synchronous n-order m-sequence to control the modem hopping, so that it is difficult for the third party to capture the effective information and the secure communication is realized, on Matlab simulation platform, the second-order m-sequence is used to control three kinds of simple modem hopping. The simulation result shows that reliable communication can not be achieved by using non- synchronous demodulation while the proposed communication method is simple and secure.

关 键 词：调制解调方式 跳变 误码率 通信保密性 

分 类 号：TN918[电子电信—通信与信息系统]