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Symbolic and numerical software tools for LFT-based low order uncertainty modeling
Varga, Andras and Looye, Gertjan (1999) Symbolic and numerical software tools for LFT-based low order uncertainty modeling. In: Proceedings of CACSD'99, pp. 1-6. IEEE International Symposium on Computer-Aided Control System Design, 1999-08-22 - 1999-08-27, Hawaii (USA). ISBN ISBN 0-7803-5449-4.
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Abstract
One of the main difficulties in applying modern control theories for designing robust controllers for linear uncertain plants is the lack of adequate models describing structured physical model uncertainties. We present a systematic approach for the generation of uncerteinty models described by linear fractional transformations (LFTs) and report on recently developed symbolic and numerical software to assist the generation of low order LFT-based uncertainty models. The kernel of the symbolic software is a Maple library for generation and manipulation of LFT models. Additional numerical tools for order reduction of LFT models are based on MATLAB and FORTRAN implenmentations of numerically reliable algorithms. Three examples of uncertainty modeling of aircraft dynamics illustrate the capabilities of the new software to solve high order uncertainty modeling problems.
| Document Type: | Conference or Workshop Item (Paper) | ||||||
|---|---|---|---|---|---|---|---|
| Additional Information: | LIDO-Berichtsjahr=1999, | ||||||
| Title: | Symbolic and numerical software tools for LFT-based low order uncertainty modeling | ||||||
| Authors: |
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| Date: | April 1999 | ||||||
| Journal or Publication Title: | Proceedings of CACSD'99 | ||||||
| Page Range: | pp. 1-6 | ||||||
| ISBN: | ISBN 0-7803-5449-4 | ||||||
| Status: | Published | ||||||
| Keywords: | LFT, uncertainty modeling | ||||||
| Event Title: | IEEE International Symposium on Computer-Aided Control System Design | ||||||
| Event Location: | Hawaii (USA) | ||||||
| Event Type: | international Conference | ||||||
| Event Dates: | 1999-08-22 - 1999-08-27 | ||||||
| HGF - Research field: | Aeronautics, Space and Transport | ||||||
| HGF - Program: | Aeronautics | ||||||
| HGF - Program Themes: | L - no assignement | ||||||
| DLR - Research area: | Aeronautics | ||||||
| DLR - Program: | L ST - Starrflüglertechnologien | ||||||
| DLR - Research theme (Project): | ["eprint_fieldopt_dlr_project_search_L000" not defined] | ||||||
| Location: | Oberpfaffenhofen | ||||||
| Institutes and Institutions: | Institute of Robotics and Mechatronics | ||||||
| Deposited By: | elib DLR-Beauftragter | ||||||
| Deposited On: | 16 Mar 2006 | ||||||
| Last Modified: | 14 Jan 2010 17:35 |
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