Test of RTCM Version 3.1 Network RTK Correction Messages (MAC) in the Field and on Board a Ship for Uninterrupted Navigation

Dan Norin, Johan Sunna, Rebecka Lundell, Gunnar Hedling, Ulf Olsson

Abstract:	SWEPOS Network RTK Service is widely used in Sweden and it is working in virtual reference station mode. It has up to present not been in question to implement network RTK messages in the service. However, test measurements with the technique and discussions based on its possible advantages have taken place. One advantage would be that it is suitable for uninterrupted continuous navigation of boats, ships or other vehicles, since the technique with virtual reference station solutions introduces recalculation of the fictitious reference station. During 2012, network RTK test measurements based on network RTK messages have been performed both in field and on board a ship. The field measurements were performed on points with known positions and receivers from Leica, Topcon and Trimble were used. The standard uncertainty in the measurements with network RTK messages was about 10 mm horizontally and a little bit less than twice as high vertically in both broadcast and automatic modes. The measurements on board a ship were carried out on board the hydrographic survey vessel Jacob Hägg from the Swedish Maritime Administration. The ship made a route of approximately 130 kilometres, which lasted for approximately seven hours. The test measurements performed with network RTK messages both in the field and on board a ship generally worked fine. Based on the measurements, it can be stated that the results from broadcast mode and automatic mode are highly correlated.
Published in:	Proceedings of the 25th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2012) September 17 - 21, 2012 Nashville Convention Center, Nashville, Tennessee Nashville, TN
Pages:	1147 - 1157
Cite this article:	Norin, Dan, Sunna, Johan, Lundell, Rebecka, Hedling, Gunnar, Olsson, Ulf, "Test of RTCM Version 3.1 Network RTK Correction Messages (MAC) in the Field and on Board a Ship for Uninterrupted Navigation," Proceedings of the 25th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2012), Nashville, TN, September 2012, pp. 1147-1157.
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