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Design of Robust Autoland Control Laws using mu-Synthesis

Looye, G. und Sancho, C.E.S. und Makdoembaks, A.A. und Mulder, J.A. (2002) Design of Robust Autoland Control Laws using mu-Synthesis. Proc. of AIAA Guidance, Navigation & Control Conference and Exhibit, 2002-08-05 - 2002-08-08, Monterey, CA.

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Kurzfassung

The design of autoland control laws for a large civil transport aircraft using mu-synthesis is discussed. The controller architecture consists of functions for tracking the ILS-approach path, and for flare and alignment of the aircraft shortly before touchdown. For each function, design requirements are formulated using weighting functions in the frequency domain. Model uncertainty is incorporated via automatically generated Linear Fraction Parametric Uncertainty Models (LF-PUMs). The structured singular value, as the measure for robust performance, is then optimized via so-called D-K iteration. Robustness of the resulting controller functions is assessed via mu-analysis and batch simulations. Monte Carlo analysis is used to test autoland performance under varying environment and disturbance parameters. As an ultimate robustness test, this analysis is performed with the nominal, as well as worst-case aircraft model configurations. The reason for this is, that in practice the Monte Carlo aircraft model may be more detailed and accurate than the model available during the design, frequently requiring late additional design iterations.

Dokumentart:Konferenzbeitrag (Paper)
Zusätzliche Informationen:LIDO-Berichtsjahr=2003,
Titel:Design of Robust Autoland Control Laws using mu-Synthesis
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Looye, G.NICHT SPEZIFIZIERT
Sancho, C.E.S.Delft University of Technology
Makdoembaks, A.A.Delft University of Technology
Mulder, J.A.NICHT SPEZIFIZIERT
Datum:2002
Status:veröffentlicht
Stichwörter:AUTOMATIC LANDING CONTROL, INSTRUMENT LANDING SYSTEMS, ROBUST CONTROL, MU-SYNTHESIS, CONTROL SYSTEMS DESIGN, AIRCRAFT CONTROL, CONTROL THEORY, TRANSPORT AIRCRAFT, PARAMETER UNCERTAINTY, MATHEMATICAL MODELS,
Veranstaltungstitel:Proc. of AIAA Guidance, Navigation & Control Conference and Exhibit
Veranstaltungsort:Monterey, CA
Veranstaltungsart:internationale Konferenz
Veranstaltungsdatum:2002-08-05 - 2002-08-08
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Luftfahrt
HGF - Programmthema:Starrflügler
DLR - Schwerpunkt:Luftfahrt
DLR - Forschungsgebiet:L AR - Starrflüglerforschung
DLR - Teilgebiet (Projekt, Vorhaben):L - Flexibles Flugzeug (alt)
Standort: Oberpfaffenhofen
Institute & Einrichtungen:Institut für Robotik und Mechatronik
Hinterlegt von: elib DLR-Beauftragter
Hinterlegt am:16 Sep 2005
Letzte Änderung:12 Dez 2013 20:02

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