Application of Global Geoclimatic Information From Multipath Fading on Terrestrial L-O-S Links to Other Clear-Air Propagation Effects

摘要

This paper first summarizes the terrestrial global geoclimatic model developed by the ITU-R for predicting the multipath fading distribution on terrestrial LOS links. It then presents the extension of this model to recently-developed ITU-R methods for predicting the multipath fading distribution on very-low-angle earth-space links and the clear-air-interference distribution on ttranshorizon paths. It discusses uncertainties in the approach. and approach and indicates potential directions of future research.