Abstract
Abstract. Lu Tan-1 (LT-1) has finished the in-orbit test and will be delivered to the users in 2023. In this paper, we discussed the satellite characteristics including the satellite mission, the platform as well as the payload. The satellite constellation was designed following two main demands, i.e., digital elevation model (DEM) generation and deformation monitoring. Thus, we provided two kinds of productions. First was the DEM created using the images provided by helix bistatic formation. Second was the deformation products created using that of pursuit monostatic formation. The deformation products were finally classified into three different types given the processing technologies. They were deformation field provided by differential interferometric SAR (InSAR, DInSAR), deformation velocity field provided by stacking, and deformation time series provided by multi-temporal InSAR. DEM data were validated to be better than 5 m compared to ICESat. Deformation field, deformation velocity field, as well as deformation time series were validated to be better than 2.7 mm, 8.6 mm/yr and 3.7 mm, respectively.
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More From: The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
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