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Measurement system for low frequency and low amplitude AC voltage of given frequency
University of Gävle, Faculty of Engineering and Sustainable Development, Department of Electrical Engineering, Mathematics and Science, Electronics.
2019 (English)Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

This work is about digital signal processing methods to be used to determine information of low frequency low amplitude signals of known frequency. Different adaptive filter concepts such as Wiener filter, NLMS filter and lock-in are implemented and compared to each other. The comparison carried out for different input signal amplitude and noise variance with the objective to find the best algorithm for noise cancelling. The comparison is done using a signal of interest combined with white noise as input to the filter element. The aim of the comparison is to find the most appropriate filter for further signal analyzis. The key topics for the evaluation are the efficiency of noise cancelling and ease of implementation in a data processing unit.

Place, publisher, year, edition, pages
2019. , p. 47
National Category
Signal Processing
Identifiers
URN: urn:nbn:se:hig:diva-30201OAI: oai:DiVA.org:hig-30201DiVA, id: diva2:1329803
External cooperation
Test-Fuchs GmbH
Subject / course
Electronics
Educational program
Electronics/Automation – master's programme (two years) (sv or eng)
Supervisors
Examiners
Available from: 2019-06-26 Created: 2019-06-24 Last updated: 2019-06-26Bibliographically approved

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fulltext(1513 kB)14 downloads
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File name FULLTEXT01.pdfFile size 1513 kBChecksum SHA-512
60a61b9ace4cfc3592b0fe5788903bb74a2a04271b9aad2e75766993d01d1dbeab25da03d85ac2475f7d8e6538c12a7d2c64e54154bb3cc473b07106d53c5a69
Type fulltextMimetype application/pdf

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CiteExportLink to record
Permanent link

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