Prototype design of traffic information service-broadcast server using the ADS-B test-bed

Automatic Dependent Surveillance - Broadcast (ADS-B) is a novel surveillance concept using the Global Positioning System (GPS) and a digital data-link. ADS-B provides a variety of benefits such as air-to-air surveillance capability, real-time traffic and aeronautical information in the cockpit, surveillance to remote or inhospitable areas that do not currently have coverage with radar and so on. Prototype ADS-B Test-bed was developed in Taean airport to apply a surveillance function of ADS-B and to evaluate performance of the ADS-B system. Under the developed ADS-B Test-bed, an aircraft periodically broadcasts its own state vector and other information without manual operation. ADS-B equipped aircraft or surface vehicles can receive the data through digital data-links such as VDL mode 4, UAT and 1090 MHz Extended Squitter. Air traffic information from ADS-B non-equipped aircrafts can not be transmitted since ADS-B is dependent surveillance upon the suitable navigation and broadcast capability such as GPS and the digital data-links. Traffic Information Service - Broadcast (TIS-B) provides surveillance data from secondary surveillance sources for ADS-B non-equipped aircrafts. In this paper, radar data processing is explained in detail and preliminary results to design prototype TIS-B server are described. Data fusion architecture and practical implementation concepts of TIS-B server are also explained. Eventually, ADS-B and TIS-B are complementary air traffic surveillance services for the next generation of Air Traffic Control (ATC) applications.