Automatic Dependent Surveillance–Broadcast (ADS–B) is an advanced surveillance technology that combines an aircraft's positioning source, aircraft avionics, and a ground infrastructure to create an accurate surveillance.
VariFlight's global terrestrial and space-based ADS-B systems advantages:
Polar region, ocean, desert area aircrafts navigation, surveillance service.
Airports, runways surface real-time monitoring.
Constitute the multi-satellites system, and offer MLAT functional space-based ADS-B data.