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The attenuation due to rain is the main source of impairments in satellite links operating above 10 GHz. In the design of systems based on Low Earth Orbit (LEO) satellites, the analysis of the rain attenuation must take into account both azimuth and elevation variations. It requires a deep knowledge on the nature of this dependence. As measurements at several elevation and azimuth angles are not available,...
The attenuation due to rain is one of the main impairments in satellite communications. It is well known that rain attenuation is dependent on the elevation angle of the link, being more severe at low elevation angles; this has a definite impact on the design of TLC and data download systems based on low earth orbit (LEO) satellites. As measurements at various elevation angles are seldom available,...
This contribution addresses the evaluation of the simultaneous impact of clouds and rain on a Ka-band Data Downlink System involving a Low Earth Orbit (LEO) satellite for Earth Observation. To this aim, MultiEXCELL (Multi EXponential CELL) and SMOC (Stochastic MOdels of Clouds), two physically-based models recently developed to synthesize realistic rain and cloud fields as large as 10 km×200 km×200...
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