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An aircraft flight control system with reconfigurable capabilities is considered. A multiple model adaptive controller (MMAC) is shown to provide effective reconfigurability when subjected to single and double failures of sensors and/or actuators. A command generator tracker/proportional-plus-integral/Kalman filter (CGT/PI/KF) form of controller was chosen for each of the elemental controllers within the MMAC algorithm and each was designed via LQG synthesis to provide desirable vehicle behavior for a particular failure status of sensors and actuators. The MMAC performance is enhanced by an alternate computation of the MMAC hypothesis probabilities, use of maximum a posteriori probability (MAP) versus Bayesian form of the MAC (or a modified combination of both), and reduction of identification ambiguities through scalar residual monitoring for the case of sensor failures
Published in:
Aerospace and Electronic Systems, IEEE Transactions on
(Volume:27
,
Issue:
3
)
Date of Publication: May 1991
- Page(s):
- 470 - 480
- ISSN :
- 0018-9251
- INSPEC Accession Number:
- 3980626
- Digital Object Identifier :
- 10.1109/7.81428
- Product Type:
- Journals & Magazines
- Date of Current Version :
- 06 August 2002
- Issue Date :
- May 1991
- Sponsored by :
- Aerospace & Electronic Systems Society
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