一种直线阵列接收通道校正技术  

Receiving Channel Calibration Technology for Linear Array

作　　者：陈黎 管吉兴[2] 鲁振兴[2] 张万玉 

机构地区：[1]陆军北京军代局驻石家庄地区军代室,河北石家庄050081 [2]中国电子科技集团公司第五十四研究所,河北石家庄050081

出　　处：《无线电工程》2017年第10期22-24,72,共4页Radio Engineering

基　　金：海洋公益性行业科研专项基金资助项目(201505002)

摘　　要：针对相控阵雷达多通道一致性问题,基于一维线阵数字波束形成接收机开发应用背景,描述了接收通道幅相一致性对阵列增益、波束指向和天线副瓣等指标的影响,介绍了多接收通道校正的原理和实现方法,给出了详细的理论推导。结合工程实践,提出了远场校正与近场校正相结合的方法,并对接收通道校正的详细工作流程做出了说明。应用结果表明,该幅相校正方法幅度和相位校正精度分别优于0.5 d B和5°,可有效地提高数字波束指标。Based on the application of digital beam forming（ DBF） receiver in the linear array,the effect of amplitude-phase consistency on array gain,beam pointing,sidelobe of beam pattern is described to solve the multichannel consistency.The principle and implementation method of receiving channel calibration are presented,and theoretical derivation is given in detail. Combined with engineering practice,a calibration method based on far-field and near-field is proposed,and the detailed work flow of calibration is given.Application results show that the precision of the calibration method is better than 0. 5d B and 0. 5° in amplitude and phase respectively,which can effectively improve the DBF index.

关 键 词：数字波束形成 接收通道校正 远场校正 近场校正 

分 类 号：TN957.51[电子电信—信号与信息处理]