The EGNOS GEO-3 programme is embedded on the Eutelsat 5 West B satellite.
M3 Systems has developed a real-time “ Key Performance Indicator” system to monitor signals quality of the European Geostationary Navigation Overlay Service (EGNOS) GEO-3 service, part of the new SBAS EGNOS V3 system.
On 9th October 2019, Eutelsat successfully launched a new satellite, EUTELSAT 5 West B, with the GEO-3 payload, the first element of the new version of the European Geostationary Navigation Overlay Navigation (EGNOS) program V3. The EUTELSAT’s service consists in transmission of signals to the satellite which broadcasts the L-Band SBAS signals to user terminals.
M3 Systems has an important place on this project.
The M3 System solution verifies the signals quality in uplink and downlink by using performance algorithms for signals quality monitoring, according to precise criteria (received power, Doppler, translation in frequency …). The monitoring equipment, installed in Eutelsat Teleports, is designed to carry out these performance measurements during the life of the EGNOS V3 service.**
EGNOS is Europe’s regional satellite-based augmentation system (SBAS) owned by the European Union and managed by the European GNSS Agency (GSA). It is currently used to improve the performance of GPS and will augment Galileo from 2025 onwards. EGNOS was deployed to provide safety of life navigation services to aviation, maritime and land-based users. EGNOS uses GNSS measurements taken by reference stations deployed mainly across Europe and North Africa. These measurements are transferred to a central computing centre where differential corrections and integrity messages are calculated. These calculations are then broadcast over the covered area using geostationary satellites that serve as an augmentation, or overlay, to the original GNSS message. The information provided by EGNOS improves the accuracy and reliability of GNSS positioning information while also providing a crucial integrity message. In addition, EGNOS also transmits an accurate time signal.
* Source : CP GSA
** This article represents M3 Systems’ view. The Commission and the GSA are not responsible for any use that may be made of the information it contains.