12 October 2005 Design and realization of an active SAR calibrator for TerraSAR-X
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Abstract
TerraSAR-X is a new earth observing satellite which will be launched in spring 2006. It carries a high resolution X-band SAR sensor. For high image data quality, accurate ground calibration targets are necessary. This paper describes a novel system concept for an active and highly integrated, digitally controlled SAR system calibrator. A total of 16 active transponder and receiver systems and 17 receiver only systems will be fabricated for a calibration campaign. The calibration units serve for absolute radiometric calibration of the SAR image data. Additionally, they are equipped with an extra receiver path for two dimensional satellite antenna pattern recognition. The calibrator is controlled by a dedicated digital Electronic Control Unit (ECU). The different voltages needed by the calibrator and the ECU are provided by the third main unit called Power Management Unit (PMU).
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Georg Dummer, Georg Dummer, Rainer Lenz, Rainer Lenz, Benjamin Lutz, Benjamin Lutz, Markus Kühl, Markus Kühl, Klaus D. Müller-Glaser, Klaus D. Müller-Glaser, Werner Wiesbeck, Werner Wiesbeck, } "Design and realization of an active SAR calibrator for TerraSAR-X", Proc. SPIE 5980, SAR Image Analysis, Modeling, and Techniques VII, 598004 (12 October 2005); doi: 10.1117/12.627588; https://doi.org/10.1117/12.627588
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