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Projection Method in Closed Loop System Identification
Linköping University, Department of Electrical Engineering, Automatic Control. Linköping University, The Institute of Technology.
1998 (English)Report (Other academic)
Abstract [en]

This paper deals with a new method for closed loop identification, i.e. the projection method. This method generalizes the already known two-stage method by allowing the estimation of non-causal closed loop sensitivity models in its first step. Such models have been shown to lead to robust identification (as the second step) of the open-loop system dynamics in the presence of marginal nonlinear closed loop behaviors. This robustness property is investigated. It results a simple "rule of thumb" under which the influence of these closed loop nonlinearities on the open-loop model estimate remains small.

Place, publisher, year, edition, pages
Linköping: Linköping University Electronic Press, 1998. , 20 p.
LiTH-ISY-R, ISSN 1400-3902 ; 2026
Keyword [en]
Two-stage method, Volterra expansion, Closed loop identification, Maskinelement Servomekanismer Automation
National Category
Control Engineering
URN: urn:nbn:se:liu:diva-55642ISRN: LiTH-ISY-R-2026OAI: diva2:316430
Available from: 2010-04-30 Created: 2010-04-30 Last updated: 2014-09-09Bibliographically approved

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Automatic ControlThe Institute of Technology
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