Browsing Articles by Author "Eriksen, Torkild"
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Completeness and Accuracy of a Wide-Area Maritime Situational Picture based on Automatic Ship Reporting Systems
GREIDANUS, Herman; ALVAREZ, Marlene; Eriksen, Torkild; GAMMIERI, Vincenzo (2015)Automatic ship reporting systems (AIS – Automatic identification System, LRIT – Long Range Identification and Tracking, VMS – Vessel Monitoring System) today allow global tracking of ships. One way to display the results ... -
In-orbit AIS performance of the Norwegian microsatellites NorSat-1 and NorSat-2
Eriksen, Torkild; Helleren, Øystein; Skauen, Andreas Nordmo; Storesund, Frode André; Bjørnevik, Anders; Åsheim, Harald; Blindheim, Eirik Voie; Harr, Jon (2019-11-21)Two Norwegian AIS-satellites, NorSat-1 and NorSat-2, were launched in July 2017. Both are equipped with the ASR x50, the latest space-AIS receiver developed by Kongsberg Seatex AS, ofering advanced signal processing and ... -
Metrics and provider-based results for completeness and temporal resolution of satellite-based AIS services
Eriksen, Torkild; Greidanus, Harm; Delaney, Conor (2018)Collecting AIS messages from ships by satellites allows for maritime situational awareness, and a wide range of commercial applications, at global and regional scales. This work provides methods and indicators for evaluation ...