ACSER RESEARCH SEMINAR: Multi-GNSS for Space service volume
This presentation gives a brief overview on Multi-GNSS services for missions operating between MEO and GEO altitudes. Terrestrial and space-borne receivers at low altitude (up to 3000 km) enjoy seamlessly available GNSS services. However, receivers at higher altitudes operating between Medium Earth Orbit (MEO) and Geostationary Orbit (GEO) depend on GNSS satellites crossing the limb of the Earth. GNSS signals reaching the higher altitudes on the far side of the earth are significantly weaker than those available on the Earth’s surface, due to path loss, gain variation in transmitting antenna pattern, ionospheric loss.
With the initial simulation results, the results for the combined GNSS availability for positioning at higher altitudes will be presented.