Title :
High accuracy digitally controlled active radar ground calibrator system for TerraSAR-X
Author :
Lenz, Rainer ; Schuler, Karin ; Younis, Marwan ; Wiesbeck, Werner
Author_Institution :
Karlsruhe Univ., Germany
Abstract :
April 2006, the TerraSAR-X satellite was launched. This paper describes the development of a novel and highly integrated, digitally controlled active SAR system calibrator (DARC). It consists of both an active transponder path for absolute radiometric calibration and a calibrated receiver chain for antenna pattern evaluation of the satellite antenna. A total of 16 active transponder and receiver systems and 17 receiver only systems were fabricated for a calibration campaign in 2006.
Keywords :
antenna radiation patterns; calibration; radar antennas; satellite antennas; spaceborne radar; synthetic aperture radar; TerraSAR-X; active transponder path; antenna pattern; calibrated receiver chain; digitally controlled active radar ground calibrator system; radiometric calibration; satellite antenna; Calibration; Control systems; Digital control; Radar antennas; Radiometry; Receiving antennas; Satellite antennas; Satellite broadcasting; Spaceborne radar; Transponders;
Conference_Titel :
Radar Conference, 2005 IEEE International
Print_ISBN :
0-7803-8881-X
DOI :
10.1109/RADAR.2005.1435783
