Workshop 2018
Laurent Jolivet - REGINA a CNES/IGN worldwide GNSS receivers network for IGS and navigation - October 29, 2018 • 317 Views
The recent years have seen the accelerated development of Global Navigation Satellite Systems (GNSS) and data-processing techniques, assisted by land-based augmentations aiming to provide a significant improvement of the associated positioning and navigation services. During the years 2005- 2010, the GNSS evolution, including the existing GPS and GLONASS systems modernizations, the BeiDou system deployment, the Galileo system preliminary validation (two satellites Galileo In-Orbit Validation Element) and the QZSS development, constitutes an important turning point. In this context, and following their respective missions, the French space agency (CNES) and the National Institute of Geographic and Forest Information (IGN) have agreed in 2012 to collaborate to the establishment, operation and maintenance of a real time GNSS observation infrastructure, including the enhancement for scientific or operational needs related to the GNSS positioning and navigation. Called REGINA (GNSS Network for IGS and navigation), the project results in the acquisition of multi- GNSS data, in controlled configurations, and the dissemination for the benefit of the scientific community on a long-term approach. This collaboration between the CNES, the IGN and the local station hosting entities is a continuation of several decades of close relations in various fields of their competence, notably as examples in space geodesy within the DORIS program and in Earth observation within the Spot or Pleiades programs. By now REGINA is a worldwide network of GNSS stations for IGS and navigation with 35 stations providing a global geographic coverage. It provides Real-Time NTRIP streams to IGN casters and CNES caster with 1 Hz data and consolidated data files (15mn, 1h and 1 day). REGINA has a multi constellations capability including GPS/GLONASS, GALILEO, BEIDOU and also SBAS. The Data Management Center for network monitoring and data provision is Located in Toulouse, in CNES premises, with a redundant center at IGN, Paris area. REGINA contributes to the International Terrestrial Reference Frame with few major sites including GNSS, DORIS, VLBI and Laser technologies. REGINA also contributes to the survey and calibration of GNSS systems and services by providing appropriate data to the CNES navigation experts. But above all, REGINA provides an important amount of GNSS data to scientific community mainly through its major contribution in the IGS Active Pilot Projects Multi-GNSS Extension (MGEX) and Real-Time Service (RTS). This poster provides an up-to-date overview of the REGINA data management centers and network of stations, contributing to the IGS infrastructure.

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