Comparative Analysis on Tropospheric Scintillation Prediction Models for Bangladeshi Climate

Abstract

Satellite communication depends on a number of environmental elements such as cloud, fog, rain and atmospheric scintillation. In this paper, the tropospheric scintillation of Bangladeshi climate is predicted by four different prediction models which are ITU-R, Karasawa, Van de Kamp and Otung. Humidity and temperature are used for analysis which is collected from Bangladesh Agriculture Research Council (BARC). Comparison on predicted results show that scintillation fade depth (SFD) is highest in Rajshahi and the SFD is lowest in Dhaka for all prediction models. 9.60dB, 10.6dB, 8.88dB and 14.1dB maximum SFD is found for ITU-R model, Karasawa model, Van de Kamp model and Otung model respectively for Rajshahi city. On the other hand 8.04dB, 8.85dB, 7.20dB and 11.8 dB minimum SFD is found for ITU-R model, Karasawa model, Van de Kamp model and Otung model respectively for Dhaka city.