文章基本信息

标题：Software package for DEM estimation using SAR interferometry
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作者：Kirti Padia ; P. Robert ; S.K. Basu 等
期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：1998
卷号：XXXII Part 1
页码：156-163
出版社：Copernicus Publications
摘要：Interferometric SAR (InSAR) is a technique to derive topographic information by exploiting the phaseinformation obtained from multiple pass satellite data or in a single pass with two antennas. Topographicinformation can be used to derive slope maps and surface change detection. In InSAR, the same point on theground is viewed by two antennas separated by some distance. This type of viewing geometry causes a pathdifference, which results in phase difference. This phase is due to topography and due to change in backscattering conditions of target. If the time period between the two acquisitions is small then phase change due toterrain change can be neglected and knowing the geometry accurately, we can obtain information abouttopography. This paper describes the methodology adopted and details about the software developed. From theDEM generated, height values of few GCPs(Ground Control Point) are compared with height values fromtopographic maps. RMS accuracy of better than 10 meters was achieved over 24 x 24 Km. area of moderatelyhilly region
关键词：Interferometric SAR; DEM; Baseline; SLC; AFF; Phase unwrapping ; GCP