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Author: search.filters.author.Hemmakorn, NarongSubject: search.filters.subject.Yearly cumulative time of rainfall rate

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    Item type:Publication,
    Propagation effect by rain in Ku and Ka band satellite communication system
    (2006-12-01)
    Lakanchanh, Donekeo
    ;
    Udomareyasap, Pongputhai
    ;
    Leelaruji, Nipha
    ;
    Hemmakorn, Narong
    This paper present the contribute of rainfall rate and rain attenuation in Ku band measurement and prediction rain attenuation in Ka band by using ITU-R model at King Mongkut's Institute of Technology Ladkrabang (KMITL), Bangkok, Thailand. One year measurement of rainfall rate and rain attenuation of Ku band satellite signal of 59 degree elevation angle is presented. The experimental results, we found that on the rainfall rate R<inf>0.01</inf> is 90 mm/hr, the measured Ku band rain attenuation A<inf>0.01</inf> is about 11 dB while predicted Ka band rain attenuation is 20 dB, The effect of rain attenuation characteristics of Ka band and Ku band satellite signals are compared. © 2006 IEEE.