The impact of antenna pattern frequency dependence in aperture synthesis microwave radiometers

Author

Camps, A. ; Corbella, I. ; Torres, F. ; Duffo, N. ; Vall-llosera, M. ; Martin-Neira, M.

Author_Institution

Dept. of Signal Theor. & Commun., Univ. Politecnica de Catalunya, Barcelona, Spain

Volume

43

Issue

10

fYear

2005

Firstpage

2218

Lastpage

2224

Abstract

The effect of the frequency dependence of the antenna voltage patterns within the bandwidth of an aperture synthesis interferometric radiometer is studied and quantified using actual antenna voltage patterns measured at different frequencies for the first nine receivers of the Microwave Imaging Radiometer with Aperture Synthesis instrument aboard the European Space Agency´s Soil Moisture and Ocean Salinity mission. A technique is proposed to mitigate this effect.

Keywords

hydrological techniques; microwave measurement; moisture; oceanographic techniques; radiometers; radiometry; remote sensing; soil; ESA; European Space Agency; MIRAS; Microwave Imaging Radiometer with Aperture Synthesis instrument; SMOS; Soil Moisture and Ocean Salinity mission; antenna voltage patterns; aperture synthesis microwave radiometer; interferometric radiometer; radiometry; Antenna measurements; Aperture antennas; Bandwidth; Frequency dependence; Frequency measurement; Microwave antennas; Microwave measurements; Radiometers; Receiving antennas; Voltage measurement; Antenna pattern; interferometer; microwave radiometer; radiometry;

fLanguage

English

Journal_Title

Geoscience and Remote Sensing, IEEE Transactions on

Publisher

ieee

ISSN

0196-2892

Type

jour

DOI

10.1109/TGRS.2005.854309

Filename

1512393