现代防御技术 ›› 2020, Vol. 48 ›› Issue (5): 74-78.doi: 10.3969/j.issn.1009-086x.2020.05.011

• 探测跟踪技术 • 上一篇    下一篇

天线极化的理论分析及在雷达对抗中的应用

吴昌松, 于卫刚, 鲁永为, 左国银, 徐常伟   

  1. 中国洛阳电子装备试验中心,河南 洛阳 471000
  • 收稿日期:2020-03-29 修回日期:2020-04-17 出版日期:2020-10-20 发布日期:2021-02-01
  • 作者简介:吴昌松(1992-),男,辽宁鞍山人。工程师,硕士,主要从事雷达及雷达对抗。通信地址:471000 河南省洛阳市洛龙区关林路与瀛洲东路交叉口电子装备试验中心 E-mail:yugang1986815@163.com

Theoretical Analysis of Antenna Polarization and Application in Radar Countermeasure

WU Chang-song, YU Wei-gang, LU Yong-wei, ZUO Guo-yin, XU Chang-wei   

  1. Luoyang Electronic Equipment Test Center of China,Henan Luoyang 471000,China
  • Received:2020-03-29 Revised:2020-04-17 Online:2020-10-20 Published:2021-02-01

摘要: 极化与时域、频域一样都是电磁波的基本特性。雷达对电磁波极化信息的利用可以有效地提高其抗干扰、目标检测和目标识别的能力。探讨雷达天线的极化特性并加以利用有助于解决雷达对抗中的一些实际问题。基于任意极化波的分解理论,分析了线极化分量法和圆极化分量法的原理,建立了相关数学模型,给出了轴比和极化失配因子对接收机灵敏度及雷达接收端干信比的影响,在雷达对抗装备研制及雷达对抗试验评估中起到良好的参考作用。

关键词: 雷达天线, 空域极化特性, 极化失配因子, 轴比, 交叉极化, 雷达对抗

Abstract: Polarization is the fundamental characteristic of electromagnetic wave as well as time domain and frequency domain.The use of the polarization information can effectively improve radar capabilities of antijamming,target detection and target recongnition.The polarization characteristics of radar antenna are discussed and used to solve some practical problems in radar countermeasures.Based on the decomposition theory of arbitrary polarization wave,the principle of linearly-and-circularly-polarized component method is analyzed.The relevant mathematical models are established.The efffects of axial ratio and polarization mismatch factor on radar receiver sensitivity and Jamming-to-Signal power Ratio at the receiving end are given.The study is of some value in the development of radar counter equipment and the evaluation of radar counter test.

Key words: radar antenna, spatial polarization characteristics, polarization mismatch factor, axial ratio, cross polarization, radar countermeasure

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