<oai_dc:dc xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
  <dc:creator>Groeger, Stephan</dc:creator>
  <dc:creator>Bison, Georg</dc:creator>
  <dc:creator>Knowles, Paul E.</dc:creator>
  <dc:creator>Weis, Antoine</dc:creator>
  <dc:date>2006</dc:date>
  <dc:description xmlns:ns0="xml" ns0:lang="en">For physical processes which express themselves as a frequency, for example magnetic field measurements using optically-pumped alkali-vapor magnetometers, the precise extraction of the frequency from the noisy signal is a classical problem. We describe herein a frequency measurement system based on an inexpensive commercially available computer sound card coupled with a software single-tone estimator which reaches Cramér-Rao limited performance, a feature which commercial frequency counters often lack. Characterization of the system and examples of its successful application to magnetometry are presented.</dc:description>
  <dc:format>application/pdf</dc:format>
  <dc:identifier>https://folia.unifr.ch/global/documents/299999</dc:identifier>
  <dc:identifier>https://folia.unifr.ch/documents/299999/files/knowles_scb.pdf</dc:identifier>
  <dc:language>eng</dc:language>
  <dc:rights>info:eu-repo/semantics/openAccess</dc:rights>
  <dc:rights>License undefined</dc:rights>
  <dc:source>The European Physical Journal: Applied Physics. - 2006, vol. 33, p. 221-224</dc:source>
  <dc:subject>info:eu-repo/classification/udc/004</dc:subject>
  <dc:title xmlns:ns1="xml" ns1:lang="en">A sound card based multi-channel frequency measurement system</dc:title>
  <dc:type>http://purl.org/coar/resource_type/c_6501</dc:type>
</oai_dc:dc>