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为提高差分跳频频率转移路径的随机性和均匀性,在深入研究差分跳频技术和频率转移函数的基础上,引入一种优化的混沌序列对数据信息码进行扰乱,利用纠错能力较强的RS(Reed-Solomon)码和m序列实现对跳频间隔及频率子集的选择控制,构建了一种新的差分跳频频率转移函数算法。对算法的随机性和均匀性进行了仿真验证。仿真结果表明,相比于基于混沌序列的G函数算法和基于RS码和m序列的G函数算法,本文算法产生的跳频序列的随机性和均匀性均得到了良好改善。
In order to improve the randomness and uniformity of differential frequency hopping (FH) frequency transfer paths, an optimized chaotic sequence is introduced to disrupt the data information codes based on the further study of differential frequency hopping and frequency transfer functions. RS (Reed-Solomon) code and m sequence to realize the selection control of the frequency hopping interval and the frequency subset, a new algorithm of differential frequency hopping frequency transfer function is constructed. The randomness and uniformity of the algorithm are verified by simulation. The simulation results show that compared with the G-function algorithm based on chaotic sequences and the G-function algorithm based on RS codes and m-sequences, the randomness and uniformity of the frequency hopping sequences generated by the proposed algorithm are all improved.