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Direct Prediction-Error Identification of Unstable Nonlinear Systems Applied to Flight Test Data
Linköping University, Department of Electrical Engineering, Automatic Control. Linköping University, The Institute of Technology.
Linköping University, Department of Electrical Engineering, Automatic Control. Linköping University, The Institute of Technology.
Linköping University, Department of Electrical Engineering, Automatic Control. Linköping University, The Institute of Technology.
Linköping University, Department of Electrical Engineering, Automatic Control. Linköping University, The Institute of Technology.
2009 (English)In: Proceedings of the 15th IFAC Symposium on System Identification, 2009, 144-149 p.Conference paper, Published paper (Refereed)
Abstract [en]

Control system design for advanced, highly agile fighter aircraft, with unstable nonlinear aerodynamic characteristics, rely heavily on flight mechanical simulations. This makes the accuracy of the aerodynamic model in the simulators very important. Here, two methods for estimating parameters of nonlinear unstable systems where the control system is unknown are presented. Both approaches are direct prediction-error methods, either with a directly parametrized observer or with an Extended Kalman Filter as a predictor. These methods have been validated on simulated data, as well as on real flight test data and all approaches show promising results.

Place, publisher, year, edition, pages
2009. 144-149 p.
Series
IFAC-PapersOnLine, ISSN 2405-8963 ; 42(10)
Keyword [en]
System identification, Prediction-error method, Nonlinear system, Unstable, Kalman filter, Aerodynamics, Flight test
National Category
Control Engineering
Identifiers
URN: urn:nbn:se:liu:diva-50775DOI: 10.3182/20090706-3-FR-2004.00024ISBN: 978-3-902661-47-0 (print)OAI: oai:DiVA.org:liu-50775DiVA: diva2:272150
Conference
15th IFAC Symposium on System Identification, Saint-Malo, France, July, 2009
Available from: 2009-10-14 Created: 2009-10-14 Last updated: 2016-06-22

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Larsson, RogerSjanic, ZoranEnqvist, MartinLjung, Lennart

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CiteExportLink to record
Permanent link

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Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf