雷达学报Issue(1)：60-67,8.DOI:10.3724/SP.J.1300.2013.20107
机载干涉SAR区域网三维定位算法
Joint Three-dimensional Location Algorithm for Airborne Interferometric SAR System
摘要
Abstract
Joint three-dimensional location algorithms aim to simultaneously obtain the north, east, and height coordinates of each pixel in several adjacent Interferometric Synthetic Aperture Radar (InSAR) scenes. Joint calibration is a key procedure used to achieve an accurate three-dimensional location. It can ensure the continuity of three-dimensional locations among adjacent scenes, and achieve the location of large areas with few Ground Control Points (GCPs) using Tie Points (TPs). In this paper, a new joint calibration algorithm for airborne interferometric SAR that simultaneously calibrates north, east, and height coordinates is proposed. It employs a weighted optimization method to carry out calibration, and introduces weights to calibration to discriminate GCPs and TPs with different coherences and locations. The experimental results for airborne InSAR data show that the three-dimensional location accuracy obtained using the proposed calibration algorithm is better than that obtained using the traditional method.关键词
合成孔径雷达/干涉/联合定标/3维定位/加权最优化Key words
Synthetic Aperture Radar (SAR)/Interferometric/Joint calibration/Three-dimensional location/Weighted optimization分类
信息技术与安全科学引用本文复制引用
毛永飞,汪小洁,向茂生..机载干涉SAR区域网三维定位算法[J].雷达学报,2013,(1):60-67,8.基金项目
国家863计划(2007AA120302)和国家973计划(2009CB724003)资助课题 （2007AA120302）
