LEGAL BASIS Regulation (EU) No 1285/2013
GNSS have become the primary means of obtaining Position, Navigation and Timing (PNT) information at sea. Today the majority of ships are equipped with GNSS receivers (c.a. 90% in merchant vessels, 20% in recreational vessels and 10% in fishing vessels) and different types of augmentation systems are in use. EGNOS receivers currently used in the maritime domain are set to process only the EGNOS Open Service data and are not satisfying the applicable IMO Resolution A.1046(27); indeed, the Open Service provides corrections to increase the accuracy of GPS but not an integrity warning of system malfunction.
One of the reasons is that there is no SBAS standard for maritime receivers that would guarantee the proper implementation of system integrity information. IMO Resolution MSC.401(95) adopts the performance standards for multi-system shipborne radionavigation receivers and recommends government to ensure that new equipment installed from 2018 conform to this standards. This call should result in the development of a prototype of multisystem receiver using navigation signals from at least GPS with augmentation provided by SBAS corrections directly from the Signal-in-Space (SiS) and a Guideline for Rx manufacturers