基于序列优化的DS/FH通信体制通信性能分析  

Analysis of Communication Performance of DS/FH Communication System Based on Sequence Optimization

作　　者：王思奇 蒋强 刘涛 WANG Siqi;JIANG Qiang;LIU Tao(Shenyang Ligong University,Shenyang 110159,China;Equipment project management center of Army Equipment Department,Beijing 100072,China)

机构地区：[1]沈阳理工大学信息科学与工程学院,沈阳110159 [2]沈阳理工大学自动化与电气工程学院,沈阳110159 [3]陆军装备部装备项目管理中心,北京100072

出　　处：《沈阳理工大学学报》2021年第5期22-26,共5页Journal of Shenyang Ligong University

基　　金：辽宁省教育厅项目(LG202014);沈阳理工大学高水平成果建设计划资助项目(SYLUXM202109)。

摘　　要：目前通信对抗方法中,DS/FH结合扩频系统的通信体制具有广泛的应用基础,其既利用直扩技术实现通信的隐蔽性,同时利用跳频技术的频谱宽度,使系统具有很强的抗干扰能力。DS/FH结合扩频系统序列的设计影响整体通信系统的性能,针对普通Logistic映射参数范围过大,不易进入混沌状态的问题,通过函数变换优化Logistic映射参数范围,得到具有良好相关特性的混沌序列,并对采用优化混沌序列的DS/FH结合扩频系统抗干扰性能进行仿真分析,结果表明其抗梳状干扰性能更强。At present,the communication system of DS/FH hybrid spread spectrum system is widely used.It not only uses DS technology to achieve the concealment of communication,but also uses the spectrum width of frequency hopping technology to enable the system to have strong anti-interference.The design of the sequence of DS/FH combined with spread spectrum system will affect the performance of the overall communication system.Aiming at the problem that the parameter range of ordinary logistic mapping is too large and it is not easy to enter the chaotic state,the method of optimizing the parameter range of logistic map by function transformation is designed,and the chaotic sequence with good correlation characteristics is obtained.On this basis,the anti-interference performance of DS/FH combined with spread spectrum system with optimized chaotic sequence is simulated and analyzed,and good simulation results are obtained.

关 键 词：LOGISTIC映射 相关特性 抗干扰 误码率 

分 类 号：TN911.6[电子电信—通信与信息系统]