Field tests of the GeoSTAR demonstrator instrument

Author

Tanner, A.B. ; Brown, S.T. ; Gaier, T.C. ; Lambrigsten, B.H. ; Lim, B.H. ; Ruf, C.S. ; Torres, F.

Author_Institution

California Inst. of Technol., Pasadena

fYear

2007

fDate

23-28 July 2007

Firstpage

2427

Lastpage

2430

Abstract

Ground based tests of the GeoSTAR (Geostationary Synthetic Thinned Array Radiometer) demonstrator instrument are reported which simulate the view of the Earth from geosynchronous Earth orbit (GEO). The test used a 4-meter target disk mounted on a tower above the instrument to simulate the brightness of the Earth with a contrasting cold background. Continuous observations at 50.3 GHz for over 100 hours, along with simultaneous atmospheric measurements from independent radiometers, yielded an excellent data set with which to test all aspects of the GeoSTAR calibration. This paper presents a preliminary look at these data, and presents an algorithm to remove the aliased background from the synthesized image.

Keywords

calibration; geophysical techniques; microwave measurement; radiometry; remote sensing; Earth brightness; GeoSTAR calibration; GeoSTAR demonstrator instrument; Geostationary Synthetic Thinned Array Radiometer; atmospheric measurement; cold background; frequency 50.3 GHz; geosynchronous Earth orbit; image synthesis; time 100 hour; Atmospheric modeling; Calibration; Earth; Foot; Image generation; Instruments; Insulation; Microwave radiometry; Temperature; Testing; interferometer; 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.2007.4423332

Filename

4423332