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.
作者
侯文栋
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)
出处
《航天电子对抗》
2022年第1期60-64,共5页
Aerospace Electronic Warfare
关键词
测向
测角
和差波束
幅相校准
direction finding
angle measurement
sum-difference beam
power-phase calibrated method
