SIGINT for Non-cooperative Maritime asset tracking
Ships are tracked around the world via their AIS transponders. These transponders are cooperative. They only function if turned on, and/or not spoofed.
There are other ways to track maritime traffic by their RF emissions; datalinks and radars; even if their AIS transponders are turned off or transmitting incorrect location data. These vessles can either be tracked by aircraft and/or satellites.
ships being tracked by AIS at any one time
ships who have turned off their AIS for some reason
of those ships who are still emitting some type of RF signal
Amber™ data will allow companies and governments to track and geolocate vessels in near real time.
In addition, any suspect Sat Phone calls at sea without a corresponding AIS ping can be used to warn vessels of the presence of potential pirates.
Airborne SIGINT solutions
Horizon Technologies Aerospace solutions geolocate and monitor satellite phone networks for ISR missions.