Physics
Scientific paper
Jun 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009jastp..71..830o&link_type=abstract
Journal of Atmospheric and Solar-Terrestrial Physics, Volume 71, Issue 8-9, p. 830-840.
Physics
1
Trmm And Airs Satellite Data, Ku, Ka And V Bands, Slant-Path Rain Attenuation, Fixed Satellite Services
Scientific paper
This study investigates the effect of rainfall on horizontally polarized radio waves for fixed satellite service at Ku, Ka and V bands for links to the recently launched Nigeria Communication Satellite one (NigComSat-1), for annual time availabilities of 99-99.99% in an average year for 37 stations in Nigeria. The results obtained at Ku-band downlink shows that 99.99% availability is possible in all the 37-stations in Nigeria. At Ka-band downlink the results also show that only 99.9% availability is practicable in all the 37 stations in Nigeria. At V-band downlink, 99.99% availability is also not possible in all the 37 stations in Nigeria. An availability level of 99.9% is only practicable in the North-West (NW) and North-East (NE) regions, where the attenuation is between 14 and 17.9 dB. Total fade out of signals during rainfall are probable in the South-South (SS), South-East (SE), South-West (SW) and Middle-Belt (MB) regions at 99.9% availability.
Oluwafemi C. O.
Omotosho T. V.
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