A Time-Series Generator Modelling Rain Fading and its Seasonal and Diurnal Variations

Abstract

This document presents a time-series generator which models rain fading in satellite-to- Earth or Earth-to-satellite links considering seasonal and diurnal variations. The model is based on a mix of a Markov chain like approach and Gaussian random variables. The time-series generator can be used in computer simulations and provides realistic time series whose statistics (e.g. distribution of attenuation, distribution of fade durations) are almost identical to those of measured data. The proposed model consists of a generic part and specific parameter sets. These parameter sets depend on the underlying scenario (frequency, climatic zone, elevation of Earth station antenna) and can be adjusted during run-time to account for seasonal and diurnal variations. The basic concept of the time-series generator has been published at [1,2,3]. In this document the specific focus is on the consideration of seasonal and diurnal variations.