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Blind pulse compression through skewness maximization on overlapping echoes from thin layers
Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering, Signals and Systems.
Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering, Signals and Systems.
Rubico Vibration Analysis AB.
Number of Authors: 3
2016 (English)In: IEEE Ultrasonics Symposium 2016, Tours France, September 18-21, 2016, Piscataway, NJ: IEEE conference proceedings, 2016, 7728571Conference paper (Refereed)
Abstract [en]

Pulse compression on overlapping echoes without knowledge of the pulse shape, transducer and propagation path impulse response is examined to provide valuable information about the sample structure in ultrasonic testing. A comparison against previous research is presented on two different levels of overlap severity with simulated signals. By exploiting the knowledge on the statistical characteristics of the signal of interest, an appropriate measure of merit, such as skewness, is maximized to promote impulsive occurrences to both extract the excitation signal and to enhance the impulse response of a material under test.

Place, publisher, year, edition, pages
Piscataway, NJ: IEEE conference proceedings, 2016. 7728571
Series
Proceedings - IEEE Ultrasonics Symposium, ISSN 1948-5719
Keyword [en]
Dictionary Learning, Acoustic Emission
National Category
Signal Processing
Research subject
Signal Processing
Identifiers
URN: urn:nbn:se:ltu:diva-61039DOI: 10.1109/ULTSYM.2016.7728571ISI: 000387497400198ScopusID: 2-s2.0-84996489201ISBN: 978-1-4673-9897-8 (print)ISBN: 978-1-4673-9898-5 (print)OAI: oai:DiVA.org:ltu-61039DiVA: diva2:1055415
Conference
IEEE Ultrasonics Symposium 2016, Tours France, September 18-21, 2016
Available from: 2016-12-12 Created: 2016-12-12 Last updated: 2016-12-15Bibliographically approved

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CiteExportLink to record
Permanent link

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Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • 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
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  • asciidoc
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