Stig Erik Christiansen works as a Research and Innovation Manager in Kongsberg Discovery, division Seatex. He holds a M. Sc. degree in Geomatics from the Norwegian University of Science and Technology and has for many years worked with use of GNSS in maritime applications. He has also been involved in the development of EGNOS and Galileo ground infrastructure, and has in the recent years worked with satellite based AIS and VDES. He is also an active member working with maritime standardization in RTCM and IALA.