Rain Rate and Rain Attenuation Geographical Map for Satellite System Planning in Ghana
International Journal of Computer Applications (0975 – 8887) Volume 177 – No. 41, March 2020 Rain Rate and Rain Attenuation Geographical Map for Satellite System Planning in Ghana Stephen Akobre Mohammed Ibrahim Daabo Abdul-Mumin Salifu Dept. of Computer Science Dept. of Computer Science Dept. of Computer Science University for Development Studies University for Development Studies University for Development Studies Navrongo, Ghana Navrongo, Ghana Navrongo, Ghana ABSTRACT the rain rate and attenuation. These studies have been carried Good signal reception depends on a reliable communication out mostly in the temperate regions. But the severity of rain link. However, as the signal travels through the effect on the signal, are more pronounce at the tropics and communication medium, several factors affect the quality of equatorial regions where intense rainfall events are common the signal at the receiver. In Ku band digital satellite as compared to the temperate regions. This is reported in the transmission, rain is the major cause of link impairment. work of Ajayi (1996), Moupfouma (1985) and Ojo and Global rain rate and rain attenuation prediction models have Omotosho (2013). been developed to predict rain rate and rain attenuation at Satellite system design requires as input 1-minute rain rate various locations. These models have not been applied and data with various exceedance probabilities. Based on this tested with measured data to determine their prediction many researchers have conducted experiments on their local accuracy in the Ghanaian tropical region. In this paper, the climatological regions to measure 1-minute rain rate and Moupfouma and International Telecommunication Union attenuation. In regions where there are enough data coverage, Recommendation (ITU-R) rain rate models were applied and prediction models have been proposed.
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