Terrestrial-based ADS-B network for aviation operations
What is ADS-B?
Automatic dependent surveillance—broadcast (ADS–B) is a flight positioning technology in which an aircraft’s position is determined via satellite and periodically broadcast, enabling it to be tracked at all times. The information can be received by air traffic control ground stations as a replacement for secondary surveillance radar, as no interrogation signal is needed from the ground. It can also be received by aircraft to enhance situational awareness and allow pilots to maintain a safe distance from other aircraft.
Why is ADS-B needed?
The disappearance of Malaysian Airlines MH370 and Air France AF447 in recent years has resulted in new official rules & regulations (GADSS), which applies to airlines worldwide. Many of them now need to be able to track their aircraft anywhere in the world at any given time.
In addition to flight tracking, ADS-B data is also used by Air Traffic Control, for weather forecasting and planning the most efficient flight route to reduce fuel and Co2 emissions.