Change search
CiteExportLink to record
Permanent link

Direct link
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
  • html
  • text
  • asciidoc
  • rtf
Real-time signal processing of infrasound data using 1D wavelet transform on FPGA device
KTH, School of Engineering Sciences (SCI), Physics.
KTH, School of Engineering Sciences (SCI), Physics.
2007 (English)In: 2007 15th IEEE-NPSS Real-Time Conference, Vols 1 And 2, 2007, 170-174 p.Conference paper, Published paper (Refereed)
Abstract [en]

Infrasound is a low frequency acoustic phenomenon typically in the frequency range 0.01 to 20 Hz. Data collected from infrasound microphones are presented online by the infrasound monitoring system operating in Northern Europe, Swedish-Finnish Infrasound Network (SFIN). Processing the continuous flow of data to extract optimal feature information is important. Using wavelet decomposition as a tool for removing noise from the real-time signals is an alternative. The purpose of this paper is to present the design and FPGA implementation of Discrete Wavelet Transform (DWT) for real-time infrasound data processing, in which only two FIR filters, a high-pass and a low-pass filter, are used. With the filter reuse method and techniques such as pipeline, basic operations, by the VHDL on the platform QUARTUS II, FPGA simulation and implementation are fulfilled. This implementation takes advantage from the low sampling rate used by the infrasound monitoring system that is only 18 Hz.

Place, publisher, year, edition, pages
2007. 170-174 p.
Keyword [en]
infrasound, filtering, discrete wavelet transform, FPGA
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-39585ISI: 000253415900031Scopus ID: 2-s2.0-50249128072ISBN: 978-1-4244-0866-5 (print)OAI: oai:DiVA.org:kth-39585DiVA: diva2:441988
Conference
2007 15th IEEE-NPSS Real-Time Conference, RT; Batavia, IL; 29 April 2007 through 4 May 2007
Available from: 2011-09-20 Created: 2011-09-12 Last updated: 2011-09-20Bibliographically approved

Open Access in DiVA

No full text

Scopus

Search in DiVA

By author/editor
Chilo, JoséLindblad, Thomas
By organisation
Physics
Physical Sciences

Search outside of DiVA

GoogleGoogle Scholar

isbn
urn-nbn

Altmetric score

isbn
urn-nbn
Total: 53 hits
CiteExportLink to record
Permanent link

Direct link
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
  • html
  • text
  • asciidoc
  • rtf