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http://dx.doi.org/10.5515/KJKIEES.2013.24.12.1128

Development of Mobile Active Transponder for KOMPSAT-5 SAR Image Calibration and Validation  

Park, Durk-Jong (Ground System Development Department, Korea Aerospace Research Institute)
Yeom, Kyung-Whan (Department of Radio Science & Engineering, Chungnam National University)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.24, no.12, 2013 , pp. 1128-1139 More about this Journal
Abstract
KOMPSAT-5(KOrea Multi-Purpose SATellite-5) has a benefit of continuously conducting its mission in all weather and even night by loading SAR(Synthetic Aperture Radar) payload, which is different from optical sensor of KOMPSAT-2 satellite. During IOT(In-Orbit Test) periods, SAR image calibration should be conducted through ground target of which location and RCS is pre-determined. Differently from the conventional corner reflector, active transponder has a capability to change its internal transfer gain and delay, which allows active transponder to be shown in a pixel of SAR image with very high radiance and virtual location. In this paper, the development of active transponder is presented from design to I&T(Integration and Test).
Keywords
KOMPSAT; SAR; Radar; Calibration; Validation;
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Times Cited By KSCI : 1  (Citation Analysis)
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