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：2008
卷号：XXXVII Part B1
页码：445-448
出版社：Copernicus Publications
摘要：It is very different from spaceborne InSAR and airborne InSAR because satellite orbit is relatively more higher, the distance between satellite subsatellite point and mapping area may be from hundreds to thousands of kilometers. Height measure based on spaceborne InSAR must eliminate the influence of earth's curvature, otherwise its error may be higher. But how much is the influence of height measure from earth's curvature to mapping accuracy in spaceborne InSAR . we have not read relative reports. In this paper, that is analyzed in detail, and the conclusions are drawn: ① Height measure based on spaceborne InSAR must eliminate the influence of earth's curvature and its precision is much higher in that way. ②The error from earth spheroid is well-regulated, and may be corrected. ③ According to the height accuracy specifications, in a definite range, the earth's surface can be taken as flat in some area
