Tropospheric Attenuation in GeoSurf Satellite Constellations [PDF]
Remote Sensing, 2021 In GeoSurf satellite constellations, any transmitter/receiver, wherever it is located, is linked to a satellite with zenith paths. We have studied the tropospheric attenuation predicted for some reference sites (Canberra, Holmdel, Pasadena, Robledo, and ...
Emilio Matricciani +2 more
exaly +7 more sources
Feasibility of Ultra-Wideband Channels at Millimeter Wavelengths Faded by Rain in GeoSurf Satellite Constellations [PDF]
Telecom, 2023 We have studied the interference caused by amplitude and phase distortions induced by rain in ultra-wideband communication systems designed for using amplitude modulation in GeoSurf future satellite constellations.
Emilio Matricciani +2 more
exaly +6 more sources
Outage Probability versus Carrier Frequency in GeoSurf Satellite Constellations with Radio-Links Faded by Rain [PDF]
Telecom, 2022 For sites located in different climatic regions, we estimated the relationship between the annual average probability distributionof exceeding a fixed rain attenuation, and the carrier frequency in the range 16 to 100 GHz, in the zenith paths of GeoSurf ...
Emilio Matricciani +2 more
exaly +5 more sources
Transfer Functions and Linear Distortions in Ultra-Wideband Channels Faded by Rain in GeoSurf Satellite Constellations [PDF]
Future Internet, 2023 Because of rain attenuation, the equivalent baseband transfer function of large bandwidth radio-links will not be ideal. We report the results concerning radio links to/from satellites orbiting in GeoSurf satellite constellations located at Spino d’Adda,
Emilio Matricciani +2 more
exaly +6 more sources
Duration of Rainfall Fades in GeoSurf Satellite Constellations [PDF]
Applied Sciences (Switzerland)We have studied the stochastic processes A and B concerning fade durations due to rain, by simulating attenuation time series A(t) (dB) in the zenith paths of GeoSurf satellite constellations, at sites located in different climatic regions, with the ...
Emilio Matricciani +2 more
exaly +5 more sources
Geocentric Spherical Surfaces Emulating the Geostationary Orbit at Any Latitude with Zenith Links [PDF]
Future Internet, 2020 According to altitude, the orbits of satellites constellations can be divided into geostationary Earth orbit (GEO), medium Earth orbit (MEO), and low Earth orbit (LEO) constellations.
Emilio Matricciani, Matricciani Emilio
exaly +4 more sources
Electronics (Switzerland)The traditional approach of considering the probability distribution of rain attenuation leads to overdesign the power margin of data channels. We have first recalled a method, proposed in 2016, which with a small power margin, bandwidth expansion and variable symbol rate avoids overdesign and can transfer the same data volume as if the link were in ...
Emilio Matricciani, Matricciani Emilio
exaly +3 more sources
Direct-to-Satellite IoT Slotted Aloha Systems with Multiple Satellites and Unequal Erasure Probabilities. [PDF]
Sensors (Basel), 2021 Tondo FA +4 more
europepmc +1 more source
LEO Mega-Constellations for 6G Global Coverage: Challenges and Opportunities
IEEE Access, 2021Haoran Xie +2 more
exaly