Cloud and gases attenuation by radiometer measurements

Author

Rocha, A.C. ; Neves, J.C.

Author_Institution

Inst. of Telecommun., Aveiro Univ., Portugal

Volume

1

fYear

2001

fDate

2001

Firstpage

173

Abstract

The use of 20/30/40 GHz for satellite or high altitude platform based SHF and EHF communication systems will offer bandwidths not available at lower microwave frequencies. The troposphere attenuation is however a more serious problem and models oriented to take into account only rain effects are not appropriated to model the channel, mainly if low fade margin systems are our target. Clouds, gases, light rain and scintillation fades must be considered. Some difficulties arises from the fact that some of this attenuation contributions are weekly correlated with ground meteorological data and direct measurements to develop, test and improve the models are very scarce

Keywords

aircraft communication; clouds; electromagnetic wave absorption; electromagnetic wave scattering; fading; microwave propagation; millimetre wave propagation; rain; satellite links; tropospheric electromagnetic wave propagation; 20 GHz; 30 GHz; 40 GHz; EHF communication; SHF communication; attenuation; cloud; gases attenuation; ground meteorological data; high altitude platform; light rain; radiometer measurements; satellite communication; scintillation; troposphere attenuation;

fLanguage

English

Publisher

iet

Conference_Titel

Antennas and Propagation, 2001. Eleventh International Conference on (IEE Conf. Publ. No. 480)

Conference_Location

Manchester

Print_ISBN

0-85296-733-0

Type

conf

DOI

10.1049/cp:20010264

Filename

927639