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Nonlinear feedback control of highly manoeuvrable aircraftThis paper describes the application of nonlinear quadratic regulator (NLQR) theory to the design of control laws for a typical high-performance aircraft. The NLQR controller design is performed using truncated solutions of the Hamilton-Jacobi-Bellman equation of optimal control theory. The performance of the NLQR controller is compared with the performance of a conventional P + I gain scheduled controller designed by applying standard frequency response techniques to the equations of motion of the aircraft linearized at various angles of attack. Both techniques result in control laws which are very similar in structure to one another and which yield similar performance. The results of applying both control laws to a high-g vertical turn are illustrated by nonlinear simulation.
Document ID
19930027657
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Garrard, William L.
(Minnesota Univ. Minneapolis, United States)
Enns, Dale F.
(Honeywell Systems and Research Center; Minnesota Univ. Minneapolis, United States)
Snell, S. A.
(California Univ. Davis, United States)
Date Acquired
August 15, 2013
Publication Date
October 1, 1992
Publication Information
Publication: International Journal of Control
Volume: 56
Issue: 4
ISSN: 0020-7179
Subject Category
Aircraft Design, Testing And Performance
Accession Number
93A11654
Funding Number(s)
CONTRACT_GRANT: NAG1-821
Distribution Limits
Public
Copyright
Other

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