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G4 Multi-constellation Precise Point Positioning service for high accuracy offshore navigation

Tegedor J., Ørpen O., Melgård T., Łapucha D., Visser H.

TransNav : International Journal on Marine Navigation and Safety of Sea Transportation

2017

Vol. 11, no. 3

425--429

Fugro is operating a global GNSS infrastructure for the delivery of high-accuracy multi-constellation Precise Point Positioning (PPP) service, named G4. Precise orbit and clock for all global satellite navigation systems are estimated in real-time and broadcast to the users using geostationary satellites. End-users with a G4-enabled receiver are able to obtain sub-decimeter positioning accuracy in real-time. The system has been tailored for offshore applications where a nearby GNSS station is not always readily available. G4 offers seamless integration of GPS, GLONASS, Galileo and BeiDou in the navigation solution, therefore allowing the user to obtain a reliable and accurate position even in challenging environments, especially in presence of interference, scintillation or partial sky visibility. In addition, carrier-phase integer-ambiguity resolution (IAR) is supported, for those users requiring the highest possible navigation accuracy. This paper presents the G4 system architecture and current performance. The benefits of multi-constellation Precise Point Positioning (PPP) are shown in terms of increased availability, robustness and accuracy.

Evaluation of Positioning Functionality in ASG EUPOS for Hydrography and Off-Shore Navigation

Rogowski J., Specht C., Weintrit A., Leszczyński W.

TransNav : International Journal on Marine Navigation and Safety of Sea Transportation

2015

Vol. 9, no. 2

221--227

The paper discusses the ASG EUPOS services. There is presented an assessment of the possibility of using this system selected sites in hydrography and off-shore navigation tasks. Presented and analyzed the experiments were carried out in the port of Gdynia and on the Gulf of Gda?sk. The results obtaining in the work confirm the possibility of the position accuracy guaranteed by ASG EUPOS services. The obtained accuracy greatly exceeds the needs and requirements of coastal navigation and underwater mining and exploration of sea bottom.

Navigational Aspects of Offshore Wind Farms Construction in the Polish EEZ

Szefler K., Kałas M., Gajewski J., Hac B., Rybka K., Staśkiewicz A.

Annual of Navigation

2010

No. 16

123-130

The paper presents methodology for determination of areas suitable for high power offshore wind farms in the Polish Exclusive Economic Zone of the Baltic Sea. Possible conflicts between different sea users and ways of their minimization are considered, especially in the aspect of navigation.