Title :
Enhanced SMOS amplitude calibration using external target
Author :
Corbella, Ignasi ; Torres, Francesc ; Duffo, Nuria ; Durán, Israel ; Pablos, Miriam ; Martín-Neira, Manuel
Author_Institution :
Remote Sensing Lab., Univ. Politec. de Catalunya (UPC), Barcelona, Spain
Abstract :
This paper focuses on the theoretical basis and general procedures for the characterization of antenna loss using the cold sky calibration sequences. The main objective is to find an improved procedure to compensate for the long- and short-term drifts observed in SMOS data. Future versions of the SMOS level 1 processor will include the procedures detailed here.
Keywords :
artificial satellites; calibration; oceanographic equipment; radiometry; satellite antennas; SMOS data; SMOS level 1 processor; Soil Moisture and Ocean Salinity satellite; antenna loss characterization; cold sky calibration sequences; enhanced SMOS amplitude calibration; long-term drifts; short-term drifts; Antenna measurements; Antennas; Attenuators; Calibration; Microwave radiometry; Noise; Temperature measurement;
Conference_Titel :
Geoscience and Remote Sensing Symposium (IGARSS), 2012 IEEE International
Conference_Location :
Munich
Print_ISBN :
978-1-4673-1160-1
Electronic_ISBN :
2153-6996
DOI :
10.1109/IGARSS.2012.6350728
