On the applicability of some existing tropospheric scintillation prediction models for Ikeja and Abuja, Nigeria

Tropospheric scintillation which causes rapid fluctuation of signal due to the turbulence in atmosphere is significance satellite link budget design. Existing models that predict intensity such as Karasawa, International Telecommunication Union Radiocommunication (ITU-R) Sector, Otung, Van de Kamp and Ortgies are not appropriate for predicting (SI) Nigeria localization particular regions. The monthly average air temperature relative humidity Ikeja Abuja, Nigeria, retrieved from Nigerian Meteorological Centre data bank were used investigation. An elevation angle 5° was look angle, antenna diameter 0.3 m, 40 GHz 45 frequencies considered this study. existing model values then compared with measured two locations determine best performance model. SI results at obtained each models. It could be deduced orgies most closet values. Therefore, Orgies-N prediction Abuja.