Terminal Area Surveillance Using GPS

H. Robert Pilley and Lois K. Pilley

Abstract:	The increased concerns over airport ground safety, aviation delays and airport capacity have prorrpted investigations into new technologies. Cost effective improvements in current airport procedures and systems are needed to satisfy future terminal area needs. This paper describes the integration of GPS position reports with highly accurate 2 or 3 Dimensional (3-D) airport maps for cockpit navigation and Air Traffic Control (ATC). Real-time GPS position updates dis- played on the map clearly identify the aircraft’s position on the airport surface, while waypoints at-d travel paths identify the route to and from the gate. The same system, using an RF cocrpatible X.25 datalink, has the capability to provide the aircraft’s identifier, position and velocity to Air Traffic Control (ATC) or to other aircraft. The precise digital map display provides the instant visual cues, augmented by precise Earth Centered Earth Fixed (ECEF) navigational mathematics and collision prediction algorithms, needed by pilots and ATC to quickly and accurately assess the current airport situation. This paper describes digital mapping techniques, maP accuracies, coordinate systems, local monusentation, and demonstrated Automatic Dependent Surveillance (ADS) techniques. GPS receiver requirements and differential corrections are also discussed.
Published in:	Proceedings of the 1992 National Technical Meeting of The Institute of Navigation January 27 - 29, 1992 Catamaran Resort Hotel San Diego, CA
Pages:	195 - 203
Cite this article:	Pilley, H. Robert, Pilley, Lois K., "Terminal Area Surveillance Using GPS," Proceedings of the 1992 National Technical Meeting of The Institute of Navigation, San Diego, CA, January 1992, pp. 195-203.
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