SESAR Solutions - Enhanced Ground Controller Situation Awareness in all Weather Conditions

The ADS-B 1090 MHz Extended Squitter Ground Station (1090 GS) is part of a ground based surveillance system that provides airspace and airport surface situa-tional awareness to air traffic controllers. The 1090 GS receives and decodes ADS-B data broadcasted in the form of 1090 MHz extended squitters (1090 ES) from appro-priately equipped aircraft (and airport vehicles), compiles corresponding target re-ports in ASTERIX Category 021 (ATX021) format, and forwards these ATX021 reports to client systems or functions (typically Surveillance Data Processing Systems).