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Proceedings Paper

An approach to instrument qualified visual range
Author(s): Benoît Courtade; Jordan Bonnet; Chris Woodruff; Josiah Larson; Andrew Giles; Nikhil Sonde; C. J. Moore; David Schimon; David Money Harris; Duane Pond; Scott Way
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Paper Abstract

This paper describes a system that calculates aircraft visual range with instrumentation alone. A unique message is encoded using modified binary phase shift keying and continuously flashed at high speed by ALSF-II runway approach lights. The message is sampled at 400 frames per second by an aircraft borne high-speed camera. The encoding is designed to avoid visible flicker and minimize frame rate. Instrument qualified visual range is identified as the largest distance at which the aircraft system can acquire and verify the correct, runway-specific signal. Scaled testing indicates that if the system were implemented on one full ALSF-II fixture, instrument qualified range could be established at 5 miles in clear weather conditions.

Paper Details

Date Published: 15 April 2008
PDF: 9 pages
Proc. SPIE 6957, Enhanced and Synthetic Vision 2008, 69570Q (15 April 2008); doi: 10.1117/12.785465
Show Author Affiliations
Benoît Courtade, Ecole Supérieure d'Ingénieurs en Electronique et Electrotechnique (France)
Jordan Bonnet, Ecole Supérieure d'Ingénieurs en Electronique et Electrotechnique (France)
Chris Woodruff, Harvey Mudd College (United States)
Josiah Larson, Harvey Mudd College (United States)
Andrew Giles, Harvey Mudd College (United States)
Nikhil Sonde, Harvey Mudd College (United States)
C. J. Moore, Harvey Mudd College (United States)
David Schimon, Harvey Mudd College (United States)
David Money Harris, Harvey Mudd College (United States)
Duane Pond, Max-Viz, Inc. (United States)
Scott Way, Max-Viz, Inc. (United States)

Published in SPIE Proceedings Vol. 6957:
Enhanced and Synthetic Vision 2008
Jeff J. Güell; Maarten Uijt de Haag, Editor(s)

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