Automatic Identification System (AIS) is an automatic tracking system used on ships and by vessel traffic services (VTS) for identifying and locating vessels. It is used mainly for collision detection but also for maritime domain awareness in national defense and security applications; search and rescue operations; and environmental monitoring.
Satellite-based AIS, where satellites are used to detect AIS signatures, provides a means to track the location of vessels anywhere around the world, especially over open oceans. It also provides unmatched coverage when compared to terrestrial-based AIS systems.
In this paper, we will examine the facts that are essential when deciding on which Satellite AIS system to use. This includes a closer look at potentially confusing issues such as whether Spectrum Decollision Processing (SDP) is effective on-board a satellite; the advantages associated with multiple satellites frequently passing over the same area to collect AIS data; and finally the importance of an extensive ground infrastructure system to lower the latency of when AIS data is received.
This white paper is a must read for anyone mandated with improving reliable vessel tracking and maritime safety: