Analysis of methods for multivariable frequency response function estimation in closed loop

descriptionPublicationkeyboard_double_arrow_right Article , Conference object , Report 01 Jan 2007 Sweden Publisher:IEEEJournal:2007 46th IEEE Conference on Decision and Control

Authors: Wernholt, Erik; Gunnarsson, Svante;

doi: 10.1109/cdc.2007.4434780

Analysis of methods for multivariable frequency response function estimation in closed loop

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Abstract

Estimation methods for the multivariable frequency response function are analyzed, both in open and closed loop. Expressions for the bias and covariance are derived and the usefulness of these expressions is illustrated in simulations of an industrial robot where the different estimators are compared. The choice of estimator depends on the signal-to- noise ratio as well as the measurement setup and a bias-variance trade-off.

Country

Sweden

Related Organizations

Linköping University
Sweden

Keywords

Reglerteknik, Multivariable systems, TECHNOLOGY, TEKNIKVETENSKAP, Control Engineering, Closed Loop, Nonparametric identication

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