Applicability of an augmented GPS for navigation in the National Airspace System

Author

Schuchman, Leonard ; Elrod, Bryant D. ; Van Dierendonck, A.J.

Author_Institution

Stanford Telecommun. Inc., Reston, VA, USA

Volume

77

Issue

11

fYear

1989

fDate

11/1/1989 12:00:00 AM

Firstpage

1709

Lastpage

1727

Abstract

The future applicability of the Global Positioning System (GPS) to the National Airspace System (NAS) for user navigation and landing support is discussed. Functional characteristics and performance estimates are presented for several GPS enhancements, including the use of a geostationary satellite L-band repeater, a CONUS calibration network, and pseudolites. Analysis results indicate that an enhanced GPS system can meet US Federal Aviation Administration (FAA) enroute/terminal area navigation and nonprecision approach requirements under conditions which include accuracy degradation due to worst-case satellite failure, selective availability, and signal integrity. Similarly, it is shown that a Category I precision approach and landing requirement is essentially met using two pseudolites per airport. Additional analysis and extensive testing are required to validate the Category I findings

Keywords

air-traffic control; radionavigation; satellite relay systems; ATC; CONUS calibration network; Category I precision approach; FAA; Global Positioning System; National Airspace System; US Federal Aviation Administration; accuracy degradation; augmented GPS; geostationary satellite L-band repeater; landing support; nonprecision approach; pseudolites; radionavigation; selective availability; signal integrity; user navigation; worst-case satellite failure; Airports; Availability; Calibration; Degradation; FAA; Failure analysis; Global Positioning System; Repeaters; Satellite navigation systems; Signal analysis;

fLanguage

English

Journal_Title

Proceedings of the IEEE

Publisher

ieee

ISSN

0018-9219

Type

jour

DOI

10.1109/5.47733

Filename

47733