IGS-MGEX: Preparing the Ground for Multi-Constellation GNSS Science
2013
With a total of four new and emerging constellations
(BeiDou, Galileo, QZSS, IRN
SS) as well as the ongoing
modernization of GPS and GLONASS the world of
satellite navigation presently experiences dramatic
changes. Facing these challenges, the International
GNSS Service (IGS) has initiated the Multi-GNSS
Experiment (MGEX) to enable an early familiarization
with the new systems and to
prepare their incorporation
into high-precision GNSS modeling and analysis. The
paper reports on the status of the new constellations and
the MGEX project as of September 2013. The offline
and real-time segment of the multi-GNSS network built
up so far are described and initial data products are
presented. Recent results for individual systems are
highlighted and necessary steps towards a
comprehensive multi-GNSS service are identified.
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