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Proceedings Paper

Autonomous precision approach and landing system (APALS)
Author(s): Otto W. Dieffenbach
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Paper Abstract

The APALSTM system is a precision approach and landing system designed to enable low visibility landings at many more airports than is now possible. It is an autonomous navigation system which uses standard avionics equipment to determine the aircraft position and altitude with respect to unique features over which the aircraft flies. The primary measurement is made with the aircraft's weather radar and provides the range and range rate information necessary to update the precision navigation system. The system makes use of stored terrain map data as references for map matching with Synthetic Aperture Radar maps.

Paper Details

Date Published: 12 June 1995
PDF: 7 pages
Proc. SPIE 2464, Air Traffic Control Technologies, (12 June 1995); doi: 10.1117/12.211487
Show Author Affiliations
Otto W. Dieffenbach, Martin Marietta Corp. (United States)

Published in SPIE Proceedings Vol. 2464:
Air Traffic Control Technologies
Robert G. Otto; James Lenz, Editor(s)

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