Improved scaling factor for long-term rain attenuation statistics as a function of link elevation

Model to Scale Rain Attenuation Time Series With Link Elevation Angle for LEO Satellite Based Systems

“…The vertical profile of rain is assumed to be constant up to the rain height as suggested by Recommendation ITU-R P.839-4 (ITU-R P.839-4, 2013). Simulations were carried out from 5°, here assumed as the minimum operational elevation, to 90°, by applying the integration in Equation 7 at all the virtual ground stations set in each pixel of the rain maps (Tomaz et al, 2017): indeed, this approach allows increasing the number of samples and consequently achieving the required statistical stability of the results. Two meteorologically different sites were considered: Spino d'Adda, Italy (45.4°N, 9.5°E), in the temperate region, and Miami, USA (25.5°N, 80.3°W), in the tropical region.…”