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Author: search.filters.author.Chankeaw, NatthapongSubject: search.filters.subject.Ku-band satellite signal propagation

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    Item type:Publication,
    Rainfall rate and rain attenuation model in Bangkok, Thailand
    (2008-12-01)
    Chankeaw, Natthapong
    ;
    Udomariyasap, Pongputhai
    ;
    Lakanchanh, Donekeo
    ;
    Noppanakeepong, Suthichai
    ;
    Leelaruji, Nipha
    This paper describes the measurement of rainfall rate at King Mongkut's Institute of Technology Ladkrabang (KMITL), Bangkok, Thailand, by using satellite signal from Thaicom5. Three years measurement of rainfall rate are presented. The experimental results indicate that the measured rainfall rate are 90mm/hr in 2005, 94 mm/hr in 2006 and 102 mm/hr in 2007. Moreover, we have developed new modify prediction model of rain attenuation by ITU-R rain attenuation model. The model provides for prediction of annual and for expected year to year variations. This model applied to collecte data compared with ITU-R model. From the results of prediction model at KMITL, we found that the highest rainfall rate 102 mm/hr in 2007 cause to signal attenuate 14.34 dB. © 2008 IEEE.