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应用科学学报 ›› 2009, Vol. 27 ›› Issue (6): 606-611.

• 电子技术 • 上一篇    下一篇

一种新的天线空域极化特性远场测量法

  

  1. 国防科技大学电子科学与工程学院，长沙410073
  • 收稿日期:2009-07-06 修回日期:2009-09-14 出版日期:2009-11-25 发布日期:2009-11-30
  • 作者简介: 戴幻尧，博士生，研究方向：电子信息系统仿真与评估、雷达极化信息处理, E-mail: leoneast@163.com; 王雪松，教授，博导，研究方 向：雷达极化信息处理、信号处理与目标识别、雷达电子战建模与仿真等，E-mail: wxs1019@vip.sina.com
  • 基金资助:

    国家自然科学基金(No. 60736006, No. 60802078)；“十一五”总装备部武器装备预研项目基金(No. 51309060305)；国防科技大学博士
    研究生创新项目基金(No. B090401) 资助

Far Field Measurement for Spatial Polarization Characteristics of Antenna

  1. School of Electronic Science and Engineering, National University of Defense Technology, Changsha 410073, China
  • Received:2009-07-06 Revised:2009-09-14 Online:2009-11-25 Published:2009-11-30

PDF

1346

被引次数

2

摘要：

提出一种天线空域极化特性的外场测量方法. 该方法引入金属球和二面角两种定标体作为雷达目标进行观测，
建立雷达天线波束扫掠目标的回波信号模型. 推导了天线空域极化特性的测量方程，通过对回波电压样本的处理和求解
获得天线的极化特性，并给出了完整的解析表达式和可用于工程实际的测量步骤. 实测数据和仿真实验表明，该方法能
有效降低设备量和测量成本，提高雷达远场预报的逼真度.

关键词: 天线测量, 空域极化特性, 外场测量, 定标体, 极化散射矩阵, 目标特性

Abstract:

 Measurement of far-field of antenna is studied in this paper. The proposed method introduces a metallic
ball and a dihedral calibrator as radar target for observation. A model is built for the signal received from the
antenna that scans the target. A measurement equation for the antenna polarization characteristic is derived. By
processing and solving the echo-voltage samples, the polarization characteristics of the antenna are obtained. The
analytical expression and practical procedure are presented. Validity of the method is shown by processing of the
observation data and simulation. The method can greatly reduce the development complexity and production cost
of the field test, and increase fidelity of the predicted far field.

Key words: antenna measurement, spatial polarization characteristic, external field test, calibrator, polarization, scattering matrix, target characteristic

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