雷达学报2016，Vol.5Issue(4)：419-424,6.DOI:10.12000/JR16064
一种机载SAR快速几何精校正算法
A Fast Precise Geometric Calibration Method for Airborne SAR
摘要
Abstract
Geometric positioning accuracy is an important technical indicator for Synthetic Aperture Radar (SAR) in the geomatics domain. Airborne SAR is an important trend in SAR technology due to its advantages of high flexibility, high resolution, and low cost. Motion error and undulating terrain are the major sources of airborne SAR geometric positioning. In this paper, we consider the SAR imaging principle and imaging geometry to carefully examine the mechanism of geometric positioning error caused by the coupling of motion error and terrain fluctuation. Therefore, we propose a fast geometric precision correction method and verify the validity and effectiveness of the proposed method based on simulation results and experimental data.关键词
机载合成孔径雷达/几何定位/残余相位误差/运动补偿/运动误差/地形起伏Key words
Airborne Synthetic Aperture Radar (SAR)/Geometric calibration/Residual phase error/Motion Compensation (MoCo)/Motion error/Terrain fluctuation分类
信息技术与安全科学引用本文复制引用
刘云龙,李焱磊,周良将,梁兴东..一种机载SAR快速几何精校正算法[J].雷达学报,2016,5(4):419-424,6.基金项目
国家863计划项目(2013AA092105)，测绘公益专项(201412002)Foundation Items：The National 863 Program of China (2013AA092105), The Public Welfare Special Project for Surveying and Mapping (201412002) （2013AA092105）
