摘要
联合战术信息分发系统(JTIDS)具有跳频、直接序列扩频和跳时等多种扩频方式,在里德‑所罗门(RS)编码后采用分组交织器进行交织,并完成循环码移位键控(CCSK)编码和最小频移键控(MSK)调制。首先,根据MSK误码率推导出CCSK误码率、RS误码率和交织误码率,得到JTIDS在高斯信道下的误码率;然后,计算得出宽带噪声干扰、部分频段干扰、脉冲干扰以及梳状谱干扰情况下JTIDS误码概率;最后,通过仿真不同干扰条件下JTIDS误码率,验证了理论分析的正确性,为评估JTIDS抗干扰性能提供了理论依据。
Joint tactical information distribution system(JTIDS)incorporates various spread spectrum such as frequency hopping,direct-sequence spread spectrum,and time hopping.After reed-solomon(RS)encoding,it is interleaved by block interleaver,encoded by cyclic code shift keying(CCSK)and modulated by minimum shift keying(MSK).Firstly,the symbol error rate(SER)of CCSK,RS and interleave are derived based on SER of MSK,and the SER of JTIDS is calculated in Gaussian channel.Then,the SER of JTIDS under wideband noise jamming,partial-band jamming,pulse jamming,and comb-spectrum jamming is derived.Finally,the SER of JITDS is evaluated under different jamming,the theoretical analysis is validated and provides theoretical basis for assessing the anti-jamming performance of JTIDS.
作者
李超
潘桉卿
陈又程
衡玉龙
LI Chao;PAN Anqin;CHEN Youcheng;HENG Yulong(The 28th Research Institute of China Electronics Technology Group Corporation,Nanjing 210023,China)
出处
《指挥信息系统与技术》
2025年第5期88-93,共6页
Command Information System and Technology
