DEM extraction is one of the most important content of InSAR data processing, and the elevation accuracy has an important influence on DEM extraction. This paper analyzed the relevance influence factors of the high precision by InSAR and elevation errors, deduced InSAR elevation error formulas based on the geometric configuration of the slant range, the baseline, the phase and the height. In addition, the impact of elevation accuracy of the vertical baseline and the horizontal baseline are respectively analyzed in detail. At last, aiming at characteristics of effects with Spaceborne InSAR elev...
