基于线阵的多波束比幅法圆锥误差分析  

Cone-error Analysis of Multi-beam Amplitude-comparison Method Based on Linear Array

作　　者：王开[1] 邵文建[1] 朱峰 WANG Kai SHAO Wen-jian ZHU Feng(The 723 Institute of CSIC, Yangzhou 225001 ,China Unit 92602 of PLA, Ningbo 315000 ,China)

机构地区：[1]中国船舶重工集团公司第723研究所 [2]解放军92602部队

出　　处：《舰船电子对抗》2016年第5期31-33,55,共4页Shipboard Electronic Countermeasure

摘　　要：在一维线阵条件下,利用多波束比幅法测量方位角时,随着入射信号仰角变大,方位角测量误差会变大。分析了不同仰角下的波束偏离,提出了利用"修正角度"减小圆锥误差的方法,并比较修正前后测量误差统计值,说明达到了提高方位角测量精度的效果。Under the condition of one-dimensional linear array, when the azimuth is measured by u- sing multi-beam amplitude-comparison method, the measurement error of azimuth will increase a- long with the elevation of incident signal. This paper analyzes the beam deviation under different el- evations, puts forward a method to reduce the cone error by using the ＂correction angle＂ ,and com- pares the statistical value of measurement error after and before correction, shows that the method fetches the effect raising the azimuth measurement accuracy.

关 键 词：多波束比幅 圆锥效应 天线 

分 类 号：TN82[电子电信—信息与通信工程]