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Inside GNSS, "IGS-MGEX: Preparing the Ground for Multi-Constellation GNSS Science" (January 2014)



With four new and emerging constellations (BeiDou, Galileo, QZSS, IRNSS) as well as the ongoing modernization of the U.S. Global Positioning System and Russia’s GLONASS, the world of satellite navigation is undergoing dramatic changes. Facing these challenges, the International GNSS Service has initiated the Multi-GNSS Experiment to enable an early familiarization with the new systems and to prepare their incorporation into high-precision GNSS modeling and analysis. This article reports on the status of the new constellations and the MGEX project and describes initial data products and recent results for individual systems.



Oliver Montenbruck,
German Aerospace Center (DLR), German Space Operations Center (GSOC);

Peter Steigenberger,
Institute for Astronomical and Physical Geodesy, Technische Universität München;

Robert Khachikyan,
NASA Jet Propulsion Laboratory/International GNSS Service Central Bureau;

Georg Weber,
German Federal Agency for Cartography and Geodesy;

Richard B. Langley,
University of New Brunswick, Geodesy and Geomatics Engineering;

Leoš Mervart,
Technical University of Prague, Faculty of Civil Engineering;

Urs Hugentobler,
Institute for Astronomical and Physical Geodesy, Technische Universität München


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