Ship detection probability analysis for a possible long-range AIS system
Abstract
There is an increasing requirement for global tracking of sea-going vessels. This report investigates the possibility of
optimising the existing Universal Shipborne Automatic Identification System (AIS) for long-range AIS (LRAIS), and
suggests to do so by implementing; 1) a separate VHF channel for LRAIS, 2) short LRAIS messages, and 3) longer ship
reporting interval.
The analyses show that the suggested system could be suitable for LRAIS, and that such an LRAIS system could be
optimised to handle more than 10 000 ships with a ship detection probability of 99% or better.