Radiometric analysis of the rotating synthetic aperture radiometers utilizing grid-based measurement approach

Author

Liu, Hao ; De Maagt, Peter ; Christensen, Jacob ; Emrich, Anders ; Wu, Ji

Author_Institution

Chinese Acad. of Sci., Beijing

fYear

2007

fDate

23-28 July 2007

Firstpage

235

Lastpage

238

Abstract

Synthetic aperture radiometers with a rotating thinned array can effectively reduce the number of antenna units required for the applications with very high spatial resolution, like GEO atmospheric sounding. The rotating array results in non-regular distributed visibility samples. A grid-based measurement approach is proposed in this paper to facilitate the image reconstruction and system performance evaluation, especially the radiometric sensitivity computation.

Keywords

geophysical techniques; image reconstruction; radiometers; radiometry; GEO atmospheric sounding; Geostationary Earth Orbit; grid-based measurement approach; high spatial resolution; image reconstruction; radiometric analysis; radiometric sensitivity computation; rotating thinned array; synthetic aperture radiometers; system performance evaluation; Antenna arrays; Antenna measurements; Aperture antennas; Atmospheric measurements; Image reconstruction; Radiometers; Radiometry; Rotation measurement; Spatial resolution; System performance; GAS; Grid-based approach; radiometric sensitivity; synthetic aperture radiometer;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium, 2007. IGARSS 2007. IEEE International

Conference_Location

Barcelona

Print_ISBN

978-1-4244-1211-2

Electronic_ISBN

978-1-4244-1212-9

Type

conf

DOI

10.1109/IGARSS.2007.4422773

Filename

4422773