TanDEM-X First DEM Acquisition: A Crossing Orbit Experiment
This letter describes the first interferometric acquisitions and results obtained by the TerraSAR-X add-on for Digital Elevation Measurements mission. Due to the large along-track separation between the two satellites during the approaching maneuver and the Earth's rotation, useful interferomet...
Published in: | IEEE Geoscience and Remote Sensing Letters |
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Main Authors: | , , , , , |
Format: | Other Non-Article Part of Journal/Newspaper |
Language: | English |
Published: |
IEEE - Institute of Electrical and Electronics Engineers
2011
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Subjects: | |
Online Access: | https://elib.dlr.de/69942/ https://elib.dlr.de/69942/1/DePrZaScKrMo_2011.pdf |
Summary: | This letter describes the first interferometric acquisitions and results obtained by the TerraSAR-X add-on for Digital Elevation Measurements mission. Due to the large along-track separation between the two satellites during the approaching maneuver and the Earth's rotation, useful interferometric acquisitions were only possible at high latitudes. This resulted in a crossing angle between the ground tracks whose impact was corrected by acquiring the two synthetic-aperture radar images with an opposite squint. The still very large 2-km cross-track baseline resulted in a 3.8-m interferometric height of ambiguity, producing extremely detailed images of the topography of the target area. Results acquired over the October Revolution Island, Russia, are shown and discussed. |
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