Clark E. Cohen, H. Stewart Cobb, David G. Lawrence, Boris S. Pervan, J. David Powell, Bradford W. Parkinson, Gerald J. Aubrey, William Loewe, Douglas Ormiston, B. David McNally, David N. Kaufmann, Victor Wullschleger, Raymond J. Swider, Jr.

Peer Reviewed

Abstract: This paper describes how differential GPS (DGPS) and miniature, low-cost Integrity Beacon pseudolites were used to carry out 110 successful automatic landings of a United Airlines Boeing 737 aircraft. These autopilot-in-the-loop flight tests using GPS Integrity Beacons (low-power, ground-based marker beacon pseudolites placed under the approach path) furnished evidence that GPS can provide the full performance necessary to meet the stringent specifications of Category III. The built-in geometrical redundancy provided by Integrity Beacon ranging is coupled with centimeter-level accuracy to provide the system integrity. This integrity-calculated to be better than one part in a billion probability of missed detection is achieved independently from ground-based monitors using receiver autonomous integrity monitoring (RAIM).
Published in: NAVIGATION: Journal of the Institute of Navigation, Volume 42, Number 3
Pages: 467 - 486
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