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An Overview of System Modelling in LFT Form

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Advanced Techniques for Clearance of Flight Control Laws

Part of the book series: Lecture Notes in Control and Information Sciences ((LNCIS,volume 283))

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Summary

This paper presents an overview of system modelling in LFT (Linear Fractional Transformation) form. An LFT form serves often to replace a bank of linearized models by a continuum of linear models to be employed to solve parametric analysis and design problems. In other cases, LFT models are special multidimensional realizations of parametric rational matrices. We discuss several approaches to generate LFT models, addressing both exact as well as approximate generation of LFT models. Many of existing generation methods tend to produce large order LFT realizations which are difficult to be handled when solving analysis and design problems. Therefore, a main focus of our presentation is on obtaining low order LFT models, by using both exact as well as approximate LFT models reduction techniques.

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Author information

Authors and Affiliations

  1. ONERA-Toulouse, CERT-DCSD, BP 4025, F31055, Toulouse Cedex 04, France

    Jean-François Magni

  2. Department of Control and Simulation, Delft University of Technology, Kluyverweg 1, 2629 HS, Delft, The Netherlands

    Samir Bennani & Jean-Paul Dijkgraaf

Authors
  1. Jean-François Magni
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  2. Samir Bennani
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  3. Jean-Paul Dijkgraaf
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Editor information

Editors and Affiliations

  1. Aerodynamics (W427D), BAE Systems, Warton, Preston, PR4 1AX, England, UK

    Christopher Fielding Msc.

  2. Institute of Robotics and Mechatronics, Deutsches Zentrum für Luft- und Raumfahrt, German Aerospace Center DLR - Oberpfaffenhofen, 82234, Wessling, Germany

    Andras Varga

  3. Faculty of Aerospace Engineering, Delft University of Technology, Kluyverweg 1, 2629 HS, Delft, The Netherlands

    Samir Bennani

  4. Flight Mechanics Department, National Aerospace Laboratory (NLR), Anthony Fokkerweg 2, 1059 CM, Amsterdam, The Netherlands

    Michiel Selier Msc.

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© 2002 Springer-Verlag Berlin Heidelberg

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Magni, JF., Bennani, S., Dijkgraaf, JP. (2002). An Overview of System Modelling in LFT Form. In: Fielding, C., Varga, A., Bennani, S., Selier, M. (eds) Advanced Techniques for Clearance of Flight Control Laws. Lecture Notes in Control and Information Sciences, vol 283. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-45864-6_11

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  • DOI: https://doi.org/10.1007/3-540-45864-6_11

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-44054-3

  • Online ISBN: 978-3-540-45864-7

  • eBook Packages: Springer Book Archive

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