Title :
Performance of a spatial error correction technique in SMOS brightness temperature images
Author :
Lin, Wu ; Torres, Francese ; Corbella, Ignasi ; Duffo, Nuria ; Martín-Neira, Manuel
Author_Institution :
Remote Sensing Lab., Univ. Politec. de Catalunya (UPC), Barcelona, Spain
Abstract :
Soil Moisture and Ocean Salinity (SMOS) brightness temperature synthesized images are obtained after a comprehensive calibration and error correction procedure. However, the final images are still contaminated by small but non-negligible spatial errors: the so-called pixel bias. These errors have been found to be very stable in the SMOS Alias-Free Field of View (AF-FoV) and can be mitigated, to a large extent, by applying a multiplicative mask to the measured brightness temperatures at the antenna plane. This paper describes the procedure to upgrade this mask to cover SMOS Extended AF-FoV.
Keywords :
error correction; geophysical techniques; masks; SMOS alias-free field of view; SMOS brightness temperature image; multiplicative mask; non-negligible spatial error; pixel bias; spatial error correction technique; Area measurement; Calibration; Geophysical measurements; Rotation measurement; Calibration; SMOS; Soil Moisture and Ocean Salinity; imaging; interferometer; radiometer; remote sensing;
Conference_Titel :
Microwave Radiometry and Remote Sensing of the Environment (MicroRad), 2012 12th Specialist Meeting on
Conference_Location :
Rome
Print_ISBN :
978-1-4673-1468-8
DOI :
10.1109/MicroRad.2012.6185262
