Abstract
In this paper, cloud attenuation on a Ka-band satellite propagation link in the tropical country of Singapore is investigated and analyzed. The satellite signal is received by a beacon receiver at 18.9 GHz. Through differentiating the clouds from rain events along the satellite link using weather Radar data, the cloud induced attenuation is experimentally estimated from the recorded beacon signal. Moreover, radiosonde data is also processed to calculate the cloud attenuation by applying the Salonen and Uppala (SU) model. The results show that cumulative distribution function (CDF) of half-year cloud attenuation derived from beacon signal is almost the same as that calculated from the SU model.
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