Fade-Slope Model for Rain Attenuation Prediction in Tropical Region

Abstract

The Van de Kamp (VDK) model, used to describe the probability distribution of the fade slope for temperate regions, has been modified for a tropical location, Kolkata, India. The fade-slope technique is adopted to predict the time series of rain attenuation of Ku-band signal during rain events for the tropical location. The matching between measurement and prediction has been improved by predicting the fade slope from the modified VDK model instead of using the direct slope measurement.