大型相控阵雷达天线阵面结构精度分析及控制  

Analysis and Control of Large Phased-array Radar Antenna Array Structure Precision

作　　者：苏力争 李智[1] 刘继鹏[1] 白云飞[1] 徐向阳[1] Su Lizheng Li Zhi Liu Jipeng Bai Yunfei Xu Xiangyang(Xi＇an Electronic Engineering Research Institute, Xi＇an 710100)

机构地区：[1]西安电子工程研究所,西安710100

出　　处：《火控雷达技术》2017年第2期75-79,共5页Fire Control Radar Technology

摘　　要：天线阵面结构精度是雷达结构设计中需要控制的关键指标之一。文中首先分析了结构精度对阵列天线极化特性的影响,通过理论公式可以推导出合理的精度指标要求,随后以某大型天线阵面为研究对象,分析了影响阵面结构精度的各个因素,并对各因素进行了误差分配以及控制方案制定。在天线装配中将摄影测量法应用于天线平面度的检测,基于测量结果的调整后平面度可控制在0.4mm内,其安装精度满足平面度指标要求。该方法为同类天线阵面平面度分析及控制提供了有益的参考和借鉴。Structure precision of antenna array is one of key indexes needed to be controlled in radar structure design.Firstly,effect of structure precision on polarization characteristics of array antenna is analyzed; a rational precision index requirement is deduced by theoretical formula.Then,taking a large antenna array face as a research object,factors affecting array structure precision are analyzed.The error distribution and control scheme are established for each factor.In antenna assembly,a photogrammetric method is applied to antenna flatness measurement.The adjusted flatness can be controlled within 0.4mm based on the measurement result.The installation precision meets the flatness index requirement.This method provides useful reference for analysis and control of similar antenna array flatness.

关 键 词：天线阵面 平面度 平面度测量 

分 类 号：TN957[电子电信—信号与信息处理]