Satellite Navigation technologies & applications
A Global Navigation Satellite System (GNSS) is a constellation of satellites providing signals from space that transmit positioning and timing data to GNSS receivers. These receivers then use this data to determine their location. European GNSS (E-GNSS) consists of the satellite signals sent by the Galileo constellation and the augmentation services provided by EGNOS. The European GNSS Agency (GSA) is responsible for the management of the European GNSS system.
The European Geostationary Navigation Overlay Service (EGNOS) is Europe's regional satellite-based augmentation system (SBAS) that is used to improve the performance of global navigation satellite systems (GNSSs), such as GPS and Galileo. EGNOS provides three services: Open Service, Safety of Life and EGNOS Data Access Service (EDAS).
Galileo is Europe’s Global Navigation Satellite System, providing standalone navigation, positioning and timing information to users worldwide. Unlike other systems, it is under civilian control and has been designed in response to the diverse needs of different user communities. The four Galileo services (Open Service, Commercial Service, Search and Rescue and Public Regulated Service) will offer various levels of accuracy, robustness, authentication and security. Galileo declared its provision of Initial Services in late 2016.
The Galileo system, once fully operational, will offer four high-performance services worldwide:
- Open Service (OS): Galileo open and free of charge service set up for positioning and timing services.
- Commercial Service (CS): A service complementing the OS by providing an additional navigation signal and added-value services in a different frequency band. The CS signal can be encrypted in order to control the access to the Galileo CS services.
- Public Regulated Service (PRS): Service restricted to government-authorised users, for sensitive applications that require a high level of service continuity.
- Search and Rescue Service (SAR): Europe’s contribution to COSPAS-SARSAT, an international satellite-based search and rescue distress alert detection system.
So far out of 30 satellites – 18 were launched and are operational.
The H2020 Space work program deals mainly with the development of GNSS-based applications in domains such as: Transport, Security, Social applications and more.