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Identifiability of physical parameters in systems with limited sensors
Linköping University, Department of Electrical Engineering, Automatic Control. Linköping University, The Institute of Technology.ORCID iD: 0000-0003-3498-3204
Linköping University, Department of Electrical Engineering, Automatic Control. Linköping University, The Institute of Technology.
Linköping University, Department of Electrical Engineering, Automatic Control. Linköping University, The Institute of Technology.
Linköping University, Department of Electrical Engineering, Automatic Control. Linköping University, The Institute of Technology.
2014 (English)In: Proceedings of the 19th IFAC World Congress, 2014, 6454-6459 p.Conference paper, Published paper (Refereed)
Abstract [en]

In this paper, a method for estimating physical parameters using limited sensors is investigated. As a case study, measurements from an IMU are used for estimating the change in mass and the change in center of mass of a ship. The roll motion is studied and an instrumental variable method estimating the parameters of a transfer function from the tangential acceleration to the angular velocity is presented. It is shown that only a subset of the unknown parameters are identifiable simultaneously. A multi-stage identification approach is presented as a remedy for this. A limited simulation study is also presented to show the properties of the estimator. This shows that the method is indeed promising but that more work is needed to reduce the variance of the estimator.

Place, publisher, year, edition, pages
2014. 6454-6459 p.
Series
IFAC-PapersOnLine, ISSN 1474-6670 ; 47(3)
National Category
Control Engineering
Identifiers
URN: urn:nbn:se:liu:diva-111052DOI: 10.3182/20140824-6-ZA-1003.02272OAI: oai:DiVA.org:liu-111052DiVA: diva2:752850
Conference
19th IFAC World Congress, South Africa, Cape Town, August 2014.
Projects
LINK-SIC
Available from: 2014-10-06 Created: 2014-10-06 Last updated: 2016-12-14

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Linder, JonasEnqvist, MartinGustafsson, FredrikSjöberg, Johan

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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
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  • Other style
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  • de-DE
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  • en-US
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  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
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