非正交跳频层叠网中JTIDS波形性能仿真及改善  

Simulation and Improvement of JTIDS Waveform Performance in Non-Orthogonal Frequency-Hopping Layered Networks

作　　者：陈晋养 杨靖宇[2] 徐任晖 魏星辰 崔晓楠 彭来献 CHEN Jinyang;YANG Jingyu;XU Renhui;WEI Xingchen;CUI Xiaonan;PENG Laixian(Army Engineering University of PLA,Nanjing Jiangsu 210007,China;Unit 31006 of PLA,Beijing 100000,China)

机构地区：[1]中国人民解放军陆军工程大学,江苏南京210007 [2]中国人民解放军31006部队,北京100000

出　　处：《通信技术》2024年第2期119-124,共6页Communications Technology

基　　金：国家自然科学基金:数据共享业务优先的定向自组织网关键技术研究(61671471)。

摘　　要：联合战术信息分发系统(Joint Tactical Information Distribution System,JTIDS)作为Link16的通信载体为多军种协同作战提供服务。当前,高精尖武器装备的数量激增,进而JTIDS终端增多,导致非正交跳频层叠网间的邻频干扰和同频干扰发生的概率很大。基于此,分析了改用高斯最小频移键控(Gaussian Minimum Shift Keying,GMSK)调制后,JTIDS的频谱特征。同时,仿真分析了改进系统对于互干扰和同频干扰的健壮程度。仿真结果表明,在邻频干扰和同频干扰下,JTIDS误码率显著提高,使用复杂度更高的GMSK解调的JTIDS性能比原系统更好。As the Link16’s communication carrier,the JTIDS(Joint Tactical Information Distribution System)can provide services for synergistic operations among multiple military branches.Currently,the number of high-precision weapons and equipments is rapidly increasing,leading to an increase in the number of JTIDS terminals,resulting in a high probability of adjacent frequency interference and co-frequency interference between non-orthogonal frequency-hopping layered networks.Based on this,the spectral characteristics of JTIDS after Gaussian MSK(GMSK)modulation are analyzed.At the same time,the robustness of the improved system against mutual interference and co-frequency interference is simulated and analyzed.Simulation results indicate that the bit error rate of JTIDS is significantly improved under adjacent and co-frequency interference,and the performance of JTIDS using the more complex GMSK demodulation is better than that of the original system.

关 键 词：联合战术信息分发系统 最小频移键控 高斯最小频移键控 互干扰 

分 类 号：TN919.4[电子电信—通信与信息系统]