动态频谱抗干扰系统中动态宽间隔跳频序列研究  

Research of Dynamic Wide-gap Frequency Hopping Sequences in Dynamic Spectrum Anti-jamming System

作　　者：李胜男[1,2] 李永贵 牛英滔 闫岩 罗建翔[1] 

机构地区：[1]解放军理工大学通信工程学院,南京210007 [2]南京电讯技术研究所,南京210007

出　　处：《计算机工程》2018年第2期147-150,162,共5页Computer Engineering

基　　金：国家自然科学基金(61401505);江苏省自然科学基金

摘　　要：现有的跳频序列大多由于统计性能不佳,通信参数难以实时改变,无法直接应用于动态频谱抗干扰系统。为此,提出一种适用于动态频谱抗干扰系统的跳频序列。基于m序列,通过非连续抽头模型产生跳频基序列。依据随机平移替代法的思想,对基序列进行伪随机映射,给出一种频率数、跳频间隔可根据通信环境实时变化的动态宽间隔跳频序列构造方法。仿真结果表明,与基于固定参数的频率自适应跳频序列相比,动态宽间隔跳频序列在均匀性、随机性、汉明相关性、平均跳频间隔等方面均具有更好的性能。The existing Frequency Hopping（FH） sequence can not be directly applied to a dynamic spectrum anti-interference system due to poor statistical performance and difficulty in real-time changes of communication parameters.Therefore,a FH sequence suitable for dynamic spectrum anti-jamming system is proposed.Based on m sequence,a hopping base sequence is generated by discontinuous model.According to the idea of stochastic translational substitution,a pseudo-random mapping of base sequences is proposed,and a dynamic wide interval frequency hopping sequence congtruction method with frequency number and FH interval is qiven according to the changed communication environment.Simulation results show that the dynamic wide-gap hopping sequence has better performance in terms of uniformity,randomness,Hamming correlation,average hopping gap and so on,compared with the frequency-adaptive FH sequence based on fixed parameters.

关 键 词：动态频谱抗干扰 跳频序列 M序列 伪随机映射 跳频间隔 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]