相关跳频通信系统安全性分析  

Security Analysis of DFH Communication System

作　　者：李天昀[1] 胡宗云[1] 葛临东[1] 

机构地区：[1]郑州信息工程大学信息工程学院,郑州450002

出　　处：《电子科技大学学报》2006年第3期305-308,共4页Journal of University of Electronic Science and Technology of China

摘　　要：分析了相关跳频通信系统中频率序列的检测以及纠错译码,并从第三方接收的角度探讨了相关跳频信号的接收、译码以及转移函数反推的复杂度。分析结果表明:相关跳频通信并不是一种抗截获的无线通信方式,其通信安全是建立在转移函数机制上的。转移函数反推的复杂度非常高,给相关跳频通信体制提供了很好的安全性。The frequency sequence detection and error-correcting decoding are analyzed in Differential Frequency Hopping （DFH） communication system. From the viewpoint of the third party of communications, the receiving and decoding process and the complexity of transition function analysis are discussed. The results show that DFH is not a LPI communication manner, and its security relies on the transition function. The complexity of transition function analysis is very high, which provides very high security to DFH communication system.

关 键 词：相关跳频 转移函数 最大似然译码 通信安全 

分 类 号：TN97[电子电信—信号与信息处理]