Weather radar data for site diversity predictions and evaluation of the impact of rain field advection

Abstract

This paper presents the analysis on two weather radar datasets, collected at Spino d’Adda (Italy) and Bordeaux (France), for the simulation and the performance evaluation of a site diversity system. Results from the two locations are compared and the impact of different factors such as the baseline and link orientation is assessed and related to the local climatologic characteristics. The results obtained are then compared with the model currently recommended by the ITU-R for the estimation of the site diversity performance. A linkage is then established between the preferable baseline orientation and the predominant direction of the rain field advection. The rain field displacement is finally shown to be well approximated by the wind speed and direction relative to the 700 hPa isobar extracted from the ECMWF ERA-40 meteorological database

Multidimensional Rain Attenuation Stochastic Dynamic Modeling: Application to Earth–Space Diversity Systems

“…Using the assumption of stationarity, we have (36) The normality of and the use of (15) and (16) as stated permit us to obtain the final expression of (37) where is the determinant of the covariance matrix and is the inverse matrix assuming that it exists. The fact that was written by the use of the properties of the stochastic integral shows the duality that exists studying a problem either from the SDE point of view or by the use of the corresponding FPE.…”

“…In this section, we demonstrate the dynamic behavior of the correlated rain attenuation process between two distinct locations by plotting the time evolution of the transition probability densities as calculated from the above analytical model [see (37)]. For this reason, we consider a typical dual-site diversity scheme in London, U.K., which consists of two sites located at a distance apart.…”

1945–2010: 65 Years of Satellite History From Early Visions to Latest Missions

“…Satellite systems at Ka band are being planned using data collected from propagation campaigns [48] [49]. However ACM needs simultaneous wide area propagation statistics of which there is little to date [50]. Demands on increased traffic driven by higher internet rates and video are forcing the use of even higher bands e.g.…”

Special issue on ‘Channel modelling and propagation impairment simulation activities within the SatNEx project’

“…Lorenzo LUINI, Nicolas JEANNIN, Carlo CAPSONI, Aldo PARABONI, Carlo RIVA, Laurent CASTANET, Joe¨l LEMORTON: 'Weather radar data for site diversity predictions and evaluation of the impact of rain field advection' [10] This paper presents the analysis on two weather radar datasets, collected at Spino d'Adda (Italy) and Bordeaux (France), for the simulation and the performance assessment of a site diversity system. Results from the two locations are compared and the impact of different factors such as the baseline and link orientation is assessed and related to the local climatological characteristics.…”