Polarimetric formulation of the visibility function equation including cross-polar antenna patterns

Author

Camps, Adriano ; Corbella, Ignasi ; Torres, Francesc ; Vall-llossera, Mercè ; Duffo, Nuria

Author_Institution

Univ. Politecnica de Catalunya, Barcelona, Spain

Volume

2

Issue

3

fYear

2005

fDate

7/1/2005 12:00:00 AM

Firstpage

292

Lastpage

295

Abstract

The European Space Agency´s Soil Moisture and Ocean Salinity (SMOS) mission will be the first one using two-dimensional aperture synthesis radiometry for Earth observation. This study presents the formulation that relates instrument observables and brightness temperature maps including cross-polar antenna voltage patterns, which may be also different from element to element. Finally, the radiometric accuracy degradation if cross-polar patterns are neglected in the image reconstruction is studied.

Keywords

antenna radiation patterns; image reconstruction; polarimetry; radiometry; visibility; 2D aperture synthesis radiometry; Earth observation; European Space Agency; SMOS mission; Soil Moisture and Ocean Salinity mission; brightness temperature maps; cross-polar antenna voltage patterns; image reconstruction; instrument observables; radiometric accuracy degradation; visibility function equation; Apertures; Brightness temperature; Degradation; Earth; Equations; Instruments; Radiometry; SMOS mission; Space missions; Voltage; Antenna arrays; interferometry; radiometry;

fLanguage

English

Journal_Title

Geoscience and Remote Sensing Letters, IEEE

Publisher

ieee

ISSN

1545-598X

Type

jour

DOI

10.1109/LGRS.2005.846885

Filename

1468084