Title :
Spatial decorrelation of radiometric noise in SMOS measurements
Author :
Torres, Francesc ; Wu Lin ; Duffo, Nuria ; Corbella, Ignasi ; Martín-Neira, Manuel
Author_Institution :
SMOS Barcelona Expert Centre, Univ. Politec. de Catalunya, Barcelona, Spain
Abstract :
This paper analyzes the degree of correlation of MIRAS/SMOS redundant baselines by analyzing the radiometric noise reduction when N simultaneous redundant visibilities over the Ocean are averaged. This analysis benefits from the high degree of redundancy that is available along each of the three arms in MIRAS “Y” shape array to verify the spatial decorrelation of SMOS visibility samples due to the Earth as an extended source of thermal radiation.
Keywords :
calibration; millimetre wave radar; radiometry; random noise; remote sensing by radar; synthetic aperture radar; MIRAS Y shape array; SMOS MIRAS redundant baselines; SMOS measurements; SMOS visibility spatial decorrelation; above ocean simultaneous redundant visibilities; correlation degree; extended thermal radiation source; radiometric noise reduction; radiometric noise spatial decorrelation; Decorrelation; Microwave radiometry; Noise; Receivers; Sea measurements; Standards; Radiometry; SMOS; interferometry; redundancy;
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.2012.6350802
