Title :
Choice of standard medium temperature for tropical and equatorial climates: Comparison between radiometric and satellite beacon attenuation data on two 12 GHz links in Brazil
Author :
De Miranda, E. Couto ; Pontes, M.S. ; Mello, L. A R da Silva ; de Almeida, M.P.
Author_Institution :
Centre for Telecommun. Studies, Pontificia Univ. Catolica do Rio de Janeiro, Brazil
fDate :
10/15/1998 12:00:00 AM
Abstract :
Results are presented for two years of satellite beacon and radiometric attenuation measurements on two 12 GHz Earth-space links located in Rio de Janeiro, south-eastern Brazil and Belem, northern Brazil. Results suggest that the choice of 285 K for the standard medium temperature, to be used in the calculation of attenuation from radiometric measurements of sky temperature, may underestimate the conditions for tropical and equatorial environments
Keywords :
microwave links; microwave propagation; radiometry; satellite links; 12 GHz; 285 K; Belem; Brazil; Earth-space links; Rio de Janeiro; equatorial climates; radiometric attenuation data; satellite beacon attenuation data; sky temperature; standard medium temperature; tropical climates;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19981443
