Evaluation of SSR Mode S datalink performance

Abstract

SSR (Secondary Surveillance Radar) Mode S system with improved surveillance and datalink capabilities is a next generation aircraft surveillance radar. SSR Mode S datalink is one of three air-ground datalink media for ICAO's CNS/ATM system. In order to develop Mode S datalink application, it is necessary to clarify SSR Mode S datalink performance. ENRI developed SSR Mode S experimental system and conducted evaluation on Mode S surveillance and datalink performance. This paper presents the results of SSR Mode S datalink performance tests such as message transfer rate, transfer delay, transfer error and maximum datalink capacity.