Blar i Brage IMR på forfatter "Dybedal, Johnny"

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    • Detecting Atlantic herring by parametric sonar 

      Godø, Olav Rune; Foote, Kenneth G.; Dybedal, Johnny; Tenningen, Eirik; Patel, Ruben (Journal article; Peer reviewed, 2010-03-17)
      The difference-frequency band of the Kongsberg TOPAS PS18 parametric sub-bottom profiling sonar, nominally 1–6 kHz, is being used to observe Atlantic herring. Representative TOPAS echograms of herring layers and schools ...