一种高分辨率机载SAR实时运动补偿系统设计  

A real-time motion compensation system for high resolution airborne synthetic aperture radar

作　　者：胡晓娥[1,2] 孙巍[1] 梁兴东[1] 

机构地区：[1]中国科学院电子学研究所微波成像技术国家级重点实验室,北京100190 [2]中国科学院研究生院,北京100149

出　　处：《电子测量技术》2012年第6期41-44,共4页Electronic Measurement Technology

摘　　要：SAR系统要实现连续地实时成像,必须具备1套稳定可靠的实时运动补偿系统。本文设计了1种基于GPS和惯性测量器件组成的SAR实时运动补偿系统,该系统能够稳定地实时地输出载体的运动信息,不受目标场景约束,并且运算量适中,适合在飞机载体有限的体积、功耗约束下实现高实时性的运动补偿系统。实际的SAR载机飞行试验证明本文设计的实时运动补偿系统能够支撑SAR系统完成长时间连续的实时成像。A stable and reliable real time motion compensation system is essential to SAR system for its continuous real time imaging. A kind of SAR real-time motion compensation system using GPS and inertial measurement device is designed which can output real-time motion information of the platform steadily with no constraint of target scene and can meet the requirements of SAR platform in size and power consumption because of its moderate computation. It is proved by actual SAR platform flight test that this motion compensation system can support SAR system to complete a long time continuous real-time imaging.

关 键 词：合成孔径雷达 GPS 惯性测量 实时运动补偿 

分 类 号：TN951[电子电信—信号与信息处理]