elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Contact | Deutsch
Fontsize: [-] Text [+]

Enhanced LFR-toolbox for MATLAB

Hecker, Simon and Varga, Andras and Magni, Jean-Francois (2005) Enhanced LFR-toolbox for MATLAB. Aerospace Science and Technology, 9, pp. 173-180.

[img]
Preview
PDF - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
119kB

Abstract

We describe recent developments and enhancements of the LFR-toolbox for Matlab for building LFT-based uncertainty models and for LFT-based gain scheduling. A major development is the new LFT-object definition supporting a large class of uncertainty descriptions: continuous- and discrete-time uncertain models, regular and singular parametric expressions, more general uncertainty blocks (nonlinear, time-varying, etc.). By associating names to uncertainty blocks the reusability of generated LFT-representations and the user friendliness of manipulation of LFR-descriptions have been highly increased. Significant enhancements of the computational efficiency and of numerical accuracy have been achieved by employing efficient and numerically robust Fortran implementations of order reduction tools via mexfunction interfaces. The new enhancements in conjunction with improved symbolical preprocessing lead generally to a faster generation of LFT-representations with significantly lower orders.

Document Type:Article
Additional Information:LIDO-Berichtsjahr=2005,
Title:Enhanced LFR-toolbox for MATLAB
Authors:
AuthorsInstitution or Email of Authors
Hecker, SimonUNSPECIFIED
Varga, AndrasUNSPECIFIED
Magni, Jean-FrancoisONERA
Date:June 2005
Journal or Publication Title:Aerospace Science and Technology
Volume:9
Page Range:pp. 173-180
Status:Published
Keywords:Robust control; Linear fractional transformation (LFT); Matlab toolbox; Linear fractional representation (LFR)
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:other
HGF - Program Themes:other
DLR - Research area:Aeronautics
DLR - Program:L - no assignement
DLR - Research theme (Project):L -- no assignement
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Robotics and Mechatronics > System Dynamics and Control (former Control Design Engineering)
Deposited By: elib DLR-Beauftragter
Deposited On:20 Sep 2007
Last Modified:12 Dec 2013 20:02

Repository Staff Only: item control page

Browse
Search
Help & Contact
Informationen
electronic library is running on EPrints 3.3.12
Copyright © 2008-2012 German Aerospace Center (DLR). All rights reserved.