星基 ADS-B 系统及关键技术发展综述u.

In the context of the globalization of air traffic control, the ICAO has proposed a new generation of surveillance technology called the automatic dependent broadcast surveillance (ADS-B) system. Compared with land-based systems, the space-based ADS-B system can achieve global airspace coverage, which can enhance the capabilities of the existing air traffic control system and promote the opening of national low-altitude airspace as well as the development of the general aviation industry. Firstly, the origin, concept, and operation principle of space-based ADS-B are introduced. Secondly, a brief overview and history of the domestic and international space-based ADS-B systems are provided. Then, the research status on the space-based ADS-B key technologies are sorted out by both domestic and international scholars, including weak signal demodulation, multi-beam reception, de-interleaving, anti-spoofing, and constellation design, routing algorithm, and surveillance performance evaluation. The research work and Beihang space-based ADS-B technology verification satellite of the Beihang University, is introduced. Finally, the development trend and outlooks of the space-based ADS-B system are summarized by combining the future development of space-based air traffic control technology and application needs.