Low-cost inertial/GPS attitude and heading reference system (AHRS) for enhanced and synthetic vision (EV/SV) applications

E. Harrison Teague; John M. Wilson

doi:10.1117/12.354433

19 July 1999 Low-cost inertial/GPS attitude and heading reference system (AHRS) for enhanced and synthetic vision (EV/SV) applications

E. Harrison Teague, John M. Wilson

Author Affiliations +

Proceedings Volume 3691, Enhanced and Synthetic Vision 1999; (1999) https://doi.org/10.1117/12.354433
Event: AeroSense '99, 1999, Orlando, FL, United States

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.

Citation Download Citation

E. Harrison Teague and John M. Wilson "Low-cost inertial/GPS attitude and heading reference system (AHRS) for enhanced and synthetic vision (EV/SV) applications", Proc. SPIE 3691, Enhanced and Synthetic Vision 1999, (19 July 1999); https://doi.org/10.1117/12.354433

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