Spaceborne Active Phased Array Antenna Calibration Using an Accurate Antenna Model
نویسندگان
چکیده
TerraSAR-X is a highly flexible X-band radar satellite. Its primary objective is the acquisition of high quality SAR images in a multitude of possible acquisition modes. The great amount of antenna patterns needed for image acquisition and correction requires an antenna model accurately describing all beams. To guarantee the required image quality, the model was verified in-orbit during the commissioning phase following the launch in June 2007. This paper presents the methodology and verification results of the antenna model verification as well as first results of the antenna pattern long term monitoring.
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