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IEEE Antennas and Propagation Society International Symposium. 1999 Digest. Held in conjunction with: USNC/URSI National Radio Science Meeting (Cat. No.99CH37010), 1999, Vol.3, p.2174-2177 vol.3
Improving satellite antenna temperature estimation by high-resolution emission model of the Earth
Ist Teil von
IEEE Antennas and Propagation Society International Symposium. 1999 Digest. Held in conjunction with: USNC/URSI National Radio Science Meeting (Cat. No.99CH37010), 1999, Vol.3, p.2174-2177 vol.3
Ort / Verlag
IEEE
Erscheinungsjahr
1999
Quelle
IEEE Electronic Library (IEL)
Beschreibungen/Notizen
This paper describes the results of a study aimed at accurately determining the antenna noise temperature used to calculate the uplink G/T for satellite-borne receivers. The antenna noise temperature is calculated from a brightness temperature database of the Earth which, for each surface pixel (1/spl deg//spl times/1/spl deg/), includes the effects of the season, observation angle and frequency. Good correlation has been found by comparison with in-orbit test (IOT) measurements.