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Frequency Analysis using Non-Uniform Sampling with Application to Active Queue Management
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.
2004 (English)Report (Other academic)
Abstract [en]

In many real-time applications, sample values and time stamps are delivered in pairs, where sampling times are non-uniform. Frequency analysis using non-uniform data occurs in various real life problems and embedded systems, such as vibrational analysis in cars and control of packet network queue lengths. Our contribution is to first overview different ways to approximate the Fourier transform, and secondly to give analytical expressions for how non-uniform sampling affects these approximations. The results are expressed in terms of frequency windows describing how a single frequency in the continuous time signal is smeared out in the frequency domain, or, more precisely, in the expected value of the Fourier transform approximation.

Place, publisher, year, edition, pages
Linköping: Linköping University Electronic Press, 2004. , 6 p.
Series
LiTH-ISY-R, ISSN 1400-3902 ; 2589
Keyword [en]
Non-uniform sampling, AQM, Frequency analysis
National Category
Control Engineering
Identifiers
URN: urn:nbn:se:liu:diva-55974ISRN: LiTH-ISY-R-2589OAI: oai:DiVA.org:liu-55974DiVA: diva2:316761
Available from: 2010-04-30 Created: 2010-04-30 Last updated: 2014-06-26Bibliographically approved

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Gunnarsson, FridaGustafsson, FredrikGunnarsson, Fredrik

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CiteExportLink to record
Permanent link

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