FLIGHT TESTS OF ATTITUDE DETERMINATION USING GPS COMPARED AGAINST AN INERTIAL NAVIGATION UNIT

Clark E. Cohen, Bradford W. Parkinson, and B. David McNally

Peer Reviewed

Abstract: Attitude determination using GPS carrier phase has been applied successfully to aircraft in experiments by a number of researchers. In an effort to formally characterize its accuracy and bandwidth performance, a GPS attitude determination system was flight tested against an inertial navigation unit, (INU). Based on completely separate physical principles, this testing provides an independent means of evaluating overall performance. For the flight experiments, a twin-engine turboprop transport aircraft was outfitted with a specially designed attitude determination receiver. A strap-down ring laser gyro INU was operated in the main cabin as the independent reference. For system evaluation, a number of test maneuvers were executed, including pitch angles to + 30 deg and bank angles to 60 deg. Performance in moderate turbulence was measured. The impact of structural flexure during aircraft maneuvering was evaluated.
Published in: NAVIGATION, Journal of the Institute of Navigation, Volume 41, Number 1
Pages: 83 - 98
Cite this article: Cohen, Clark E., Parkinson, Bradford W., McNally, B. David, "FLIGHT TESTS OF ATTITUDE DETERMINATION USING GPS COMPARED AGAINST AN INERTIAL NAVIGATION UNIT", NAVIGATION, Journal of The Institute of Navigation, Vol. 41, No. 1, Spring 1994, pp. 83-98.
https://doi.org/10.1002/j.2161-4296.1994.tb02323.x
Full Paper: ION Members/Non-Members: 1 Download Credit
Sign In