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

fYear

2012

fDate

22-27 July 2012

Firstpage

2972

Lastpage

2974

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium (IGARSS), 2012 IEEE International

Conference_Location

Munich

ISSN

2153-6996

Print_ISBN

978-1-4673-1160-1

Electronic_ISBN

2153-6996

Type

conf

DOI

10.1109/IGARSS.2012.6350802

Filename

6350802