GPS-based attitude and guidance displays for general aviation

GPS was used with a short baseline (1 and 2 wavelengths) triple antenna configuration to obtain attitude in conjunction with solid state rate gyros. The system was used to provide an inexpensive attitude-heading reference system (AHRS) for use by small general aviation aircraft. The gyros enabled a...

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Bibliographic Details
Main Authors: Barrows, A.K., Gebre-Egziabher, D., Hayward, R., Renxin Xia, Powell, J.D.
Format: Conference Proceeding
Language:English
Subjects:
Bandwidth
Clocks
Computer displays
Costs
Global Positioning System
Liquid crystal displays
Military aircraft
Satellites
Solid state circuits
System testing
Online Access:Request full text
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Description
Summary:GPS was used with a short baseline (1 and 2 wavelengths) triple antenna configuration to obtain attitude in conjunction with solid state rate gyros. The system was used to provide an inexpensive attitude-heading reference system (AHRS) for use by small general aviation aircraft. The gyros enabled a high bandwidth output while the GPS was used to estimate the gyro drift rate. The resulting attitude information was used, along with GPS-based position, by a graphical "out-the-window" view with tunnels indicating the desired path in the sky for the current phase of flight. Accuracy and ease of flying are enhanced by the system.
DOI:10.1109/ETFA.1996.573733