数字阵列雷达全向匿影系统设计方法  

A Method of Omnidirectional Blanking System of Digital Array Radar

作　　者：敖呈欢 刘云申 张弘 王真[2] Ao Chenghuan;Liu Yunshen;Zhang Hong;Wang Zhen(Nanjing Guorui Defense System Co.,Ltd,Nanjing 210019,China;Nanjing Research Institute of Electronics Technology,Nanjing 210039,China)

机构地区：[1]南京国睿防务系统有限公司,南京210019 [2]南京电子技术研究所,南京210039

出　　处：《信息化研究》2023年第5期15-20,共6页INFORMATIZATION RESEARCH

摘　　要：数字阵列雷达通常利用主阵面若干天线单元作为匿影天线,这种匿影方式简单,但只能对主天线的前向副瓣起到较好的抑制效果,对于来自主天线其他方向的干扰,尤其背向干扰,虚警率高。本文提出了一种数字阵列雷达全向匿影系统设计方法。该系统采用主阵面天线单元结合3个辅助匿影天线的全向匿影天线,匿影信号经过独立的数字接收通道处理后,经数字波束形成设备形成4路匿影波束,最后对主通道数据和匿影通道数据进行匿影判决处理。实验结果表明,该方法匿影概率高,是一种全方位抑制欺骗式脉冲干扰的有效措施。Digital array radar usually uses a number of the main antennas as the blanking antenna.This method is simple,but can only inhibit the forward lobe of the main antenna,and has high false alarm rate of the interference in other directions,especially the backside interference.This paper presents a method of omnidirec-tional blanking system of digital array radar.In this system,a number of the main antennas are combined with three auxiliary blanking antennas.After the blanking signals processed by independent digital receiving chan-nels,the digital beam forming equipment forms four blanking beams.Finally the main channel data and the blanking channel data are processed by the blanking decision.The experiment results show that the method has high blanking probability and is an effective measure to suppress the pulse deception jamming in all directions.

关 键 词：数字阵列雷达 全向匿影 辅助匿影天线 匿影判决 脉冲式欺骗干扰 

分 类 号：TN974[电子电信—信号与信息处理]