中文摘要：

差分跳频通信系统是一种全面基于数字信号处理的全新概念的通信系统,其技术体制和原理与常规跳频完全不同。差分跳频已成为当前短波保密通信的一个重要发展方向,因此其抗干扰性能尤其引起人们的关注。由于差分跳频通信系统特殊的通信机理,其抗干扰效能完全不同于常规跳频通信系统。鉴于此,在对差分跳频通信原理研究基础上,重点分析了差分跳频通信系统对同频干扰及异频干扰的抗干扰效能,并通过计算机仿真对相应结论进行了验证,可为差分跳频通信的进一步发展提供相关理论基础与技术借鉴。

英文摘要：

Differential frequency hopping communication system is a sort of new concept commu-nication system based on comprehensive digital signal processing,and it differs completely from conventional frequency hopping in technology system and principle.The differential frequency hopping has become an important development direction in the current shortwave privacy communication,so its anti-jamming performance is particularly a concern.In virtue of the special communication mechanism of the differential frequency hopping system,its anti-jamming efficiency is completely different with the conventional frequency hopping communication system.In view of this,based on the research of the differential frequency hopping communication theory,the efficiency of differential frequency hopping communication system anti-jamming to the same frequency jamming and different frequency jamming is especially analyzed,and the corresponding conclusions have been verified by computer simulation.It can afford interrelated theoretical basis and technical reference for the further development of the differential frequency hopping communication.