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Proceedings Paper

Low-cost inertial/GPS attitude and heading reference system (AHRS) for enhanced and synthetic vision (EV/SV) applications
Author(s): E. Harrison Teague; John M. Wilson
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Paper Abstract

Fundamental to vision enhancement systems for vehicles are sensors that provide precise, real-time attitude and heading information. While attitude and heading reference systems (AHRS) based on high-performance inertial components exist, such systems are traditionally very expensive and inapplicable to price-sensitive applications/markets. This paper demonstrates an AHRS that combines small, low-cost, solid- state inertial sensors with an advanced GPS-derived attitude determination technology. The resulting AHRS is inexpensive, rugged, and provides information with the accuracy and responsiveness needed to drive many enhanced/synthetic-vision displays, such as tunnel-in-the-sky guidance displays. The instrument also provides GPS position, velocity, and time information. Further, by using complementary and overlapping sources of information for integrity checking, the GPS/Inertial AHRS has robustness to individual sensor failures and can operate safely if GPS were to become unavailable.

Paper Details

Date Published: 19 July 1999
PDF: 12 pages
Proc. SPIE 3691, Enhanced and Synthetic Vision 1999, (19 July 1999); doi: 10.1117/12.354433
Show Author Affiliations
E. Harrison Teague, Seagull Technology, Inc. (United States)
John M. Wilson, Seagull Technology, Inc. (United States)

Published in SPIE Proceedings Vol. 3691:
Enhanced and Synthetic Vision 1999
Jacques G. Verly, Editor(s)

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