战术数据链空时联合抗干扰技术  

Space-Time Adaptive Anti-jamming Technique for Tactical Data Link

作　　者：康荣雷[1] 安毅[1] 班亚龙 杨少帅 KANG Ronglei;AN Yi;BAN Yalong;YANG Shaoshuai(Southwest China Institute of Electronic Technology,Chengdu 610036,China)

机构地区：[1]中国西南电子技术研究所,成都610036

出　　处：《电讯技术》2023年第2期199-205,共7页Telecommunication Engineering

基　　金：四川省科技厅高新技术领域重点研发项目(2021YFG0155);中国西南电子技术研究所技术创新基金资助项目(H21004.2)。

摘　　要：针对战术数据链在复杂电磁环境下性能受限的问题,提出基于非标准构型阵列天线的战术数据链空时联合抗干扰技术。该技术在常规导向矢量获取方法失效时,通过设计引导信号,结合盲自适应抗干扰算法进行干扰信号的抑制和引导信号的重构,实现对干扰方向调零抑制并保持通信信号的正常接收。仿真结果表明,通信信号经过空时联合抗干扰处理后,在干扰方向形成的零陷超过-30 dB,大大抑制了干扰方向的信号,保存了信号方向的信号。For the problem that the performance of tactical data link decreases in the complex electromagnetic environment,a space-time adaptive anti-jamming method is proposed for ultra-short wave data link with non-regular array antenna.It is difficult to obtain a precise steering vector of non-regular array antenna.To solve the problem,a guiding signal is developed at transmitter,the jamming signal is suppressed by blind adaptive algorithm and a guiding signal is reconstructed at receiver.Then,the communication performance is improved under the jamming environment by space-time adaptive processing.The simulation results show that the jamming signal is suppressed by the beam null and the null depth exceeds-30 dB at the direction of the jamming signal,and the communication signal is obtained at the direction of the signal.

关 键 词：战术数据链 空时自适应抗干扰 引导信号 

分 类 号：TN973[电子电信—信号与信息处理]