Abstract
The utilization of the Synthetic Aperture Radar (SAR) has wide application areas recently, and one of them is to grasp the situation of damaged area after the occurrence of a disaster. The small ground displacement is obtained, for example, by Differential Interferometric SAR (DInSAR) technique. However, there are few researches for performing the feature of the errors of DEM, and the characteristics and the errors of fringes of the deformation were not revealed yet. We examined the method to evaluate the phase noise utilizing the errors of DEM of fixed points. In the current study, we evaluated the errors of DEMs focusing on the flat ground targets such as roads, parking lots, and parks. The results revealed the relationships between errors and baseline using multiple pairs of images with different frequency, acquisition mode, and the acquisition direction.
