Concept for an integrated national surveillance and data communication infrastructure

This paper identifies the requirements for future surveillance and data communication for the next generation air transportation system. It explores how key capabilities, such as 4D trajectory negotiation, drive the system requirements and design. The paper explores the need for a secure, transactional data link along with the need to maintain compatibility with existing transport class, general aviation and military equipage. The proposed multilateration, ADS-B and data link concept provides a robust foundation for future capability while delivering tangible benefits today