计算机工程与应用2018，Vol.54Issue(12)：192-197,6.DOI:10.3778/j.issn.1002-8331.1701-0324
基于DEM的SAR影像直接与间接正射校正方法比较
Comparison of direct and indirect ortho-rectification of SAR image based on DEM
摘要
Abstract
For the direct and indirect ortho-rectification of SAR image based on DEM, this paper gives the difference analysis for the theory, steps, correction effect and applicability. Moreover, it makes a comparison for the correction accuracy are based on the orthographic corrected high resolution satellite image. Experimental results illustrate that although the two methods are based on the same model, the start points are different, the steps and computational complexities as well as the correction effects are also different. But the correction accuracy difference between the two methods is very small. Both can meet the demand of the correction accuracy and the appropriate method should be chosen according to actual situation.关键词
合成孔径雷达(SAR)/数字高程模型(DEM)/直接正射校正/间接正射校正Key words
Synthetic Aperture Radar(SAR)/Digital Elevation Model(DEM)/direct ortho-rectification/indirect ortho-rectification分类
信息技术与安全科学引用本文复制引用
李艳艳,唐娉,胡昌苗,单小军..基于DEM的SAR影像直接与间接正射校正方法比较[J].计算机工程与应用,2018,54(12):192-197,6.基金项目
高分辨率对地观测系统重大专项(No.03-Y20A04-9001-15/16) （No.03-Y20A04-9001-15/16）
ALOS-2RA4科学研究项目(No.PI1404). （No.PI1404）
