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Nonlinear State Space Smoothing Using the Conditional Particle Filter
Uppsala University.
Uppsala University.
Linköping University, Department of Electrical Engineering, Automatic Control. Linköping University, Faculty of Science & Engineering.
2015 (English)In: Proceedings of the 17th IFAC Symposium on System Identification, 2015, 975-980 p.Conference paper, Published paper (Refereed)
Abstract [en]

To estimate the smoothing distribution in a nonlinear state space model, we apply the conditional particle filter with ancestor sampling. This gives an iterative algorithm in a Markov chain Monte Carlo fashion, with asymptotic convergence results. The computational complexity is analyzed, and our proposed algorithm is successfully applied to the challenging problem of sensor fusion between ultrawideband and accelerometer/gyroscope measurements for indoor positioning. It appears to be a competitive alternative to existing nonlinear smoothing algorithms, in particular the forward filtering-backward simulation smoother. 

Place, publisher, year, edition, pages
2015. 975-980 p.
Keyword [en]
Smoothing, Particle filters, Nonlinear systems, State estimation, Monte Carlo method, Sensor fusion, Position estimation.
National Category
Control Engineering
Identifiers
URN: urn:nbn:se:liu:diva-123955OAI: oai:DiVA.org:liu-123955DiVA: diva2:894484
Conference
17th IFAC Symposium on System Identification, Beijing, China, October 19-21, 2015
Projects
The project Probabilistic modeling of dynamical systems (Contract number: 621- 2013-5524)CADICS
Funder
Swedish Research Council
Available from: 2016-01-15 Created: 2016-01-15 Last updated: 2016-01-18

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Other links

http://arxiv.org/pdf/1502.03697v3

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
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  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
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Output format
  • html
  • text
  • asciidoc
  • rtf