一种基于混沌加密算法的差分跳频方案设计  

A New Differential Frequency Hopping Scheme based on Chaotic Encryption Algorithm

作　　者：尹爱兵 李毅 YIN Ai-bing;LI Yi(Anhui Wenda University of Information Engineering,Hefei 231201,China)

机构地区：[1]安徽文达信息工程学院,合肥231201

出　　处：《光通信研究》2022年第4期69-72,共4页Study on Optical Communications

基　　金：安徽省教育厅高校科学研究重点资助项目(KJ2019A0906);国家级大学生创新创业资助项目(202012810058)。

摘　　要：针对差分跳频通信中跳频图案二维均匀性差,跳频频率易于被窃听的难题,文章设计了一种基于logistic混沌映射的伪随机序列来对跳频图案进行随机扰乱的加密方案。经校验,加密扰乱后差分跳频图案相对于原来的跳频图案,虽然降低了系统性能,但减少了频率之间的相关性,改善了二维均匀性,具有较强的抗破译能力。Aiming at the problem that the two-dimensional uniformity of the frequency hopping pattern in differential frequency hopping communication is poor,and the frequency hopping frequency is easy to be eavesdropped,this paper designs an encryption scheme based on the pseudo-random sequence of logistic chaotic map to randomly scramble the frequency hopping pattern.After verification,the differential frequency hopping pattern after encryption and scramble is compared with the original frequency hopping pattern.Although the performance of the system is reduced,the correlation between frequencies is reduced,and the two-dimensional uniformity is improved,which has strong anti-deciphering ability.

关 键 词：差分跳频 G函数 混沌加密 跳频 

分 类 号：TN914.3[电子电信—通信与信息系统]