Title :
Improving satellite antenna temperature estimation by high-resolution emission model of the Earth
Author :
Schiavon, G. ; Ferraxxoli, P. ; Guerriero, L. ; Jorgensen, R. ; Badessi, S. ; de Maagt, P. ; Fenech, H.
Author_Institution :
Tor Vergata Univ., Rome, Italy
Abstract :
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.
Keywords :
brightness; receiving antennas; satellite antennas; satellite links; temperature; Earth; antenna noise temperature; brightness temperature database; correlation; frequency; high-resolution emission model; in-orbit test measurements; observation angle; satellite antenna temperature estimation; satellite-borne receivers; season; surface pixel; uplink G/T; Antenna measurements; Artificial satellites; Atmosphere; Atmospheric modeling; Brightness temperature; Earth; Frequency estimation; Ocean temperature; Satellite antennas; Sea surface;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1999. IEEE
Conference_Location :
Orlando, FL, USA
Print_ISBN :
0-7803-5639-x
DOI :
10.1109/APS.1999.788393
