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Clearance of Flight Control Laws using Linear Fractional Transformations
Saab AB, Sweden.
Saab AB, Sweden.
Saab AB, Sweden.
Linköping University, Department of Electrical Engineering, Automatic Control. Linköping University, The Institute of Technology.
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2004 (English)In: Proceedings of the 2004 AIAA Guidance, Navigation and Control Conference and Exhibit, 2004Conference paper, Published paper (Refereed)
Abstract [en]

The problem of flight clearance of linear stability requirements in the complete flight evelope is studied. The approach is to use mu-analysis of linear fractional transformations description of the system dynamics augmented with an uncertainty model of the clearance criteria. Two methods to derive the linear fractional transformations are used and compared: the Trends and Bands method and rational approximations. The two approaches are applied to a UAV demostrator model. The resulting models are analyzed by mu-sensitivites in order to demonstrate how this can be used to reduce the order of the linear fractional transformations description. A number of algorithms to compute upper and lower bounds on mu are also compared. Results from applying the clearance criteria to the UAV demonstrator model are given.

Place, publisher, year, edition, pages
2004.
Keyword [en]
Linear fractional tranformation, LFT, Structured singular value, SSV, Linear matrix inequality, LMI, Lyapunov function, Flight clearance, Stability margin
National Category
Engineering and Technology Control Engineering
Identifiers
URN: urn:nbn:se:liu:diva-24076DOI: 10.2514/6.2004-4867Local ID: 3638ISBN: 978-1-62410-073-4 (print)OAI: oai:DiVA.org:liu-24076DiVA: diva2:244392
Conference
2004 AIAA Guidance, Navigation and Control Conference and Exhibit, Providence, RI, USA, August, 2004
Available from: 2009-10-07 Created: 2009-10-07 Last updated: 2013-03-27

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Hansson, AndersWallin, Ragnar

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CiteExportLink to record
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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