PAZ Calibration and Performance Update Based on Antenna Model and Instrument Monitoring Capabilities
Konferenz: EUSAR 2014 - 10th European Conference on Synthetic Aperture Radar
03.06.2014 - 05.06.2014 in Berlin, Germany
Tagungsband: EUSAR 2014
Seiten: 4Sprache: EnglischTyp: PDF
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Autoren:
Castillo, J. del; Gomez, B.; Porras, R. de; Larranaga, J. R. (INTA, Crta. Ajalvir Km 4, 28850, Torrejon de Ardoz, Spain)
Sanchez, S. (ISDEFE, Beatriz de Bobadilla 3, 28040, Madrid, Spain)
Castellanos, G. (DLR, Oberpfaffenhofen, 82234, Wessling, Germany)
Inhalt:
PAZ is the Spanish space based SAR system part of PNOTS program. PAZ instrument design is based on a new Xband Active Electronic Steering Antenna and recurrent platform and back-end electronics from TanDEM-X. In order to assure correct SAR system operation, CALVAL centre shall include instrument characterization/calibration/verification capabilities mainly driven by engineering aspects inherited from precursors TerraSAR/ TanDEM-X. This paper summarizes PAZ instrument on-ground characterization and calibration results achieved in the frame of PAZ Ground segment CALVAL centre activities. Main results cover first on-ground antenna model validation, automatic TRM monitoring results, internal calibration analysis and a preliminary system performance budget update including latest characterisation results.