Secondary Surveillance Radar for Air Traffic Control -- SSR Mode S

摘要

Secondary surveillance radar (SSR), an essential part of air traffic control, provides aircraft identification and altitude information. Recent years, however, have brought increased air traffic congestion, which has magnified the limitations inherent in the present SSR system. To resolve this problem, an improved SSR, that is, SSR Mode S, is being standardized by ICAO (International Civil Aviation Organization). Thus, Japan's Civil Aviation Bureau, which is administered by the Japan Ministry of Land, Infrastructure and Transport, is planning replacement of the conventional SSR system with SSR Mode S. Toshiba has, at the request of the Civil Aviation Bureau of Japan, developed and implemented SSR Mode S system.