Aircraft Surveillance From Space: The Future of Air Traffic Control?: Space-Based ADS-B, Status, Challenges and Opportunities

In early 2024, the International Civil Aviation Organization (ICAO) announced that global air traffic had essentially fully recovered from the COVID-19 pandemic on most routes and projected a significant increase in air traffic for 2024 and the years to come [1]. Naturally, increased air traffic has to be met with the same amount of appropriate air traffic surveillance, in order to maintain safety but also to increase the efficiency of the used airspace and possibly reduce separation distances to allow more aircraft to be safely routed through the same volume.