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FFT Integration of Time Series Using an Overlap-add Technique
University of Southern Denmark, Denmark.
University of Southern Denmark, Denmark.ORCID iD: 0000-0003-2025-7842
2010 (English)In: Structural Dynamics, Volume 3: Proceedings of the 28th IMAC, A Conference on Structural Dynamics, 2010 / [ed] Tom Proulx, Springer, 2010, Vol. 3, 1467-1474 p.Conference paper, Published paper (Refereed)
Abstract [en]

Many times in vibration problems it is of importance to be able to integrate signals. Well known cases are Operational Deflection Shapes and earth quake problems where the displacements often need to be estimated from acceleration time series. When digital signals are integrated some classical problems arise; one of these is numerical noise introduced by the inaccurate integration algorithms resulting in large errors in the low frequency region leading to large DC drift. These problems are normally dealt with by using high pass filters that often introduce additional implementation problems like instability and amplitude/phase distorting problems. In this paper an FFT based procedure is introduced.

Place, publisher, year, edition, pages
Springer, 2010. Vol. 3, 1467-1474 p.
Series
Conference Proceedings of the Society for Experimental Mechanics Series, ISSN 2191-5644
National Category
Mechanical Engineering
Identifiers
URN: urn:nbn:se:lnu:diva-56945DOI: 10.1007/978-1-4419-9834-7_130ISBN: 9781441998330 (print)ISBN: 9781441998347 (print)OAI: oai:DiVA.org:lnu-56945DiVA: diva2:1040106
Conference
28th International Modal Analysis Conference (IMAC), Jacksonville, USA, February 1-4, 2010
Available from: 2016-10-26 Created: 2016-09-28 Last updated: 2016-10-26Bibliographically approved

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Brandt, Anders
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CiteExportLink to record
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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
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Language
  • de-DE
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