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Calibration of the MIRAS Radiometers

Author
Corbella, I.; Torres, F.; Duffo, N.; Duran, I.; González-Gambau, V.; Oliva, R.; Closa, J.; Martín, M.
Type of activity
Journal article
Journal
IEEE journal of selected topics in applied earth observations and remote sensing
Date of publication
2018-12-21
DOI
https://doi.org/10.1109/JSTARS.2018.2885576 Open in new window
Project funding
Productos y servicios innovadores con sensores de microondas, SMOS y sentinels para tierra
SMOS and follow-on missions improved Level 1 performance
SMOS enhanced performance and future missions
Repository
http://hdl.handle.net/2117/126998 Open in new window
URL
https://ieeexplore.ieee.org/document/8585138 Open in new window
Abstract
The microwave imaging radiometer with aperture synthesis (MIRAS) is formed by 69 total power radiometers, of which three are the noise-injection type. Their calibration is reviewed on the basis of the data gathered during more than eight years of operation. Internally calibrated gain and offset corrections with improved temporal stability are presented. New front-end loss characterization with lower seasonal dependence originated from external temperature swings is also proposed. Finally, a meth...
Citation
Corbella, I., Torres, F., Duffo, N., Durán, I., González-Gambau, V., Oliva, R., Closa, J., Martín, M. Calibration of the MIRAS Radiometers. "IEEE journal of selected topics in applied earth observations and remote sensing", 21 Desembre 2018.
Keywords
Interferometric synthetic aperture radiometry, L-band radiometry, Radiometer calibration, Soil Moisture and Ocean Salinity (SMOS)
Group of research
RF&MW - Laboratory of RF & microwave systems, devices and materials
RSLAB - Remote Sensing Lab

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