和差波束测角在电子侦察系统中的应用  

Application of sum⁃difference beam angle measurement in electronic reconnaissance system

作　　者：侯文栋[1] 黄开木 冯晨峰 刘志武 聂海江 吴克钊 Hou Wendong;Huang Kaimu;Feng Chenfeng;Liu Zhiwu;Nie Haijing;Wu Kezhao(No.8511 Research Institute of CASIC,Nanjing 210007,Jiangsu,China;Unit 93126 of PLA,Beijing 100875,China)

机构地区：[1]中国航天科工集团8511研究所,江苏南京210007 [2]中国人民解放军93126部队,北京100875

出　　处：《航天电子对抗》2022年第1期60-64,共5页Aerospace Electronic Warfare

摘　　要：和差波束测角精度由于只采用幅度校准精度限制,在电子侦察中一般仅用于反辐射导引头,在更通用的宽带电子侦察系统中则应用较少。首先介绍了和差波束测向的理论基础,然后设计仿真了四种不同的和差波束天线并分析其优缺点,最后针对对周天线进行微波暗室的角度测量。通过幅度相位联合校准机制,提升了测向精度,为该体制天线在通用电子侦察中应用指明了方向。Sum-difference beam direction finding technology is applied in anti-radiation missiles,but has less application in radar wideband intelligence reconnaissance equipment because of its low precision due to power-cali⁃brated information.Firstly theoretical basis of sum-difference beam direction is proposed.Then four different an⁃tenna models are simulated,and their advantages and disadvantages are summarized.Lastly direction test of-peri⁃odic dipole antenna mass is made in microwave darkroom.Direction precision is proved using power-phase cali⁃brated method which point out its application trend in universal wideband intelligence reconnaissance equipments.

关 键 词：测向 测角 和差波束 幅相校准 

分 类 号：TN971.5[电子电信—信号与信息处理]