Portable Pilot Units Provide GNSS Corrections at 50-Centimetre Accuracy, Thanks to EGNOS

In the Port of Seville, Spain, pilots guiding large ships into docking use a portable pilot unit (PPU) incorporating GNSS corrections from the European Geostationary Navigation Overlay Service (EGNOS) to obtain positioning accuracies of 50 centimetres in situations such as entering and navigating through the harbor lock or in docking and turning maneuvres. The PPU from AD Navigation can be configured in different functional modes and is able to use different sources of corrections over GPS.

PPUs are  carried onboard vessels by the harbor-based pilots sent to navigate them in the confined and congested port waters. PPUs can be considered as a more advanced version of the vessel’s Electronic Chart Display and Information System (ECDIS), which provides the pilot with updated and high density navigation charts, traffic management and ship-handling tools.

Located on the lower reaches of the Guadalquivir River, the commercial river port of Seville has an access channel of more than 80 kilometres and a modern lock, allowing the entrance of big merchant vessels and cruises. The largest vessels allowed so far have been passenger ships up to 200 metres and bulk carriers up to 190 metres.

Read more in Inside GNSS article. https://insidegnss.com/portable-pilot-units-provide-gnss-corrections-at-50-centimeter-accuracy-thanks-to-egnos/