有源相控阵天线在机载SAR中的若干问题分析  

Analysis of Some Issues on Active Electronically Scanned Array Applied to Airborne SAR System

作　　者：李道京[1] 王卫延[1] 尹建凤[1,2] 侯颖妮[1,2] 乔明[1,2] 

机构地区：[1]中国科学院电子学研究所微波成像技术国家重点实验室,北京100190 [2]中国科学院研究生院,北京100190

出　　处：《空军雷达学院学报》2009年第5期344-348,352,共6页Journal of Air Force Radar Academy

基　　金：微波成像技术国家重点实验室基金项目(9140C1903050804);中国科学院支撑项目(61501010404B)

摘　　要：有源相控阵天线可多模式灵活工作的特点,为新体制多功能机载SAR侦察系统的发展提供了有利条件.针对有源相控阵天线在机载InSAR系统中的应用问题,给出了顺轨多频多孔径InSAR的几种工作模式和信号处理形式,分析了InSAR系统的天线安装方式、通道幅相一致性、天线辐射中心稳定性及系统定标问题,给出了一些分析实例和仿真计算的结果.The characteristics of multi-mode flexible operation of active electronically scanned array （AESA） facilitate the development of new system multi-function airborne SAR reconnaissance system. Aimed at the issues of AESA applied to the airborne SAR system, several operating and signal processing modes of InSAR that is of along track, multi-frequency and multi-aperture were given, and then the issues of setting mode of antenna, consistency of channel amplitude-phase, stability of antenna radiation center and system scale were analyzed, finally the results of analyzing examples and simulating calculation were given.

关 键 词：合成孔径雷达 干涉合成孔径雷达 有源相控阵天线 运动目标检测 数字高程地图 

分 类 号：TN958[电子电信—信号与信息处理]