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The orbit of TerraSAR-X is strictly controlled and well known. Based on this information, a very high absolute accuracy in geo-locating TerraSAR-X data is possible and has been demonstrated before. In this manuscript, we present an experimental validation of this, demonstrating the very high level of accuracy achievable using only the atmospheric phase delay information provided in the header files...
The synthetic aperture Altimeter (SARA) introduces synthetic aperture processing into the conventional radar altimeter (CRA) in the along-track dimension, so both the spatial resolution and precision of SARA are improved. The sub-looks alignment is a key technique in the SARA data processing. In this paper, a method for sub-looks alignment is proposed to correct the varieties of the satellite orbit...
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