Global Navigation Satellite System (GNSS) update
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By Martin de Kievit (Sales Manager Marine at Trimble, The Netherlands) ...
By Martin de Kievit (Sales Manager Marine at Trimble, The Netherlands)
The demand for greater positioning accuracy with more reliability for waterways and marine positioning is aided with more satellite availability. While GPS from USA, and GLONASS from Russia, have been the mainstay of GNSS for the last few years we have seen three new constellations – QZSS from Japan, BeiDou (Compass) from China and GALILEO from Europe.
This presentation reviews the current status of all the GNSS constellations. Other new developments which will be touched briefly;
-Updated Geoid Model EGM-96,
-Due to doubling of the number of satellites, the corrections needed for precise GNSS, have also doubled so a new correction format is explained.
Furthermore we will tell you something about the latest RTX service (corrections over satellite) and xFILL technology (maintaining your positioning after you lose your GNSS signal).
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