Fugro Launches G4 Correction Service for GNSS Augmentation

February 17, 2015  - By
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Image: GPS World

Fugro has launched the G4 service, designed to provide GNSS augmentation for offshore positioning applications. The new satellite correction service takes advantage of all four GNSS: GPS, GLONASS, BeiDou and Galileo.

By using all available GNSS satellites, Fugro’s G4 service is designed to improve availability and reliability of offshore positioning and thus enhance the safety and productivity of a wide range of survey and other activities offshore. G4 represents a significant advancement compared to augmentation systems which are based on GPS-only or GPS + GLONASS, the company said.

The BeiDou system operated by China currently provides coverage in the Asia-Pacific region. Fugro’s G4 service already utilises the first BeiDou satellites and is ready to start using the Galileo satellites as soon the EU announces Initial Operational Capability (IOC) status for this system. Galileo and future BeiDou satellites will be automatically included as they come online, steadily increasing availability and robustness of the integrated augmentation service.

The new G4 service will be particularly beneficial when the line-of-sight to certain satellites is obstructed by offshore structures – a key consideration during critical positioning operations. The G4 augmentation signals, transmitted via seven high–powered communication satellites to provide at least two independent broadcast channels anywhere in the world, will offer Fugro’s customers unrivalled coverage and availability.

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