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Parameter Estimation of Polytopic Models for a Linear Parameter Varying Aircraft System
Shizouka University, Japan.
Linköping University, Department of Electrical Engineering, Automatic Control. Linköping University, The Institute of Technology.
2006 (English)In: Transactions of the Japan Society for Aeronautical and Space Sciences, ISSN 0549-3811, Vol. 49, no 165, 129-136 p.Article in journal (Refereed) Published
Abstract [en]

This paper presents a parameter estimation of continuous-time polytopic models for a linear parameter varying (LPV) system. The prediction error method of linear time invariant (LTI) models is modified for polytopic models. The modified prediction error method is applied to an LPV aircraft system that has flight velocity as the varying parameter and stability and control derivatives (SCDs) as the model parameters. In an identification simulation, the polytopic model is more suitable for expressing the behaviors of the LPV aircraft system than the LTI model from the viewpoints of time and frequency responses. The SCDs of the initial polytopic model are adjusted to fit the model output to the output-data obtained from the LPV aircraft system.

Place, publisher, year, edition, pages
2006. Vol. 49, no 165, 129-136 p.
Keyword [en]
Polytopic model, System identification, Prediction error method, Aircraft model
National Category
Control Engineering
URN: urn:nbn:se:liu:diva-48046DOI: 10.2322/tjsass.49.129OAI: diva2:268942
Available from: 2009-10-11 Created: 2009-10-11 Last updated: 2013-07-21

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Ljung, Lennart
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