• Target tracking with a split-beam echo sounder 

      Brede, Raymond; Kristensen, Finn Hogne; Solli, Haakon; Ona, Egil (Conference object, 1990)
      The split-beam technique makes it possible to determine the precise location of a fish in the acoustic beam. This is a very useful feature, as it permits behavioural observations to be conducted without disturbing the fish. ...
    • Trial of a New, Split-beam Echo Sounder 

      Foote, Kenneth G.; Kristensen, Finn Hogne; Solli, Haakon (ICES CM Documents;1984/B:21, Working paper, 1984)
      The first at-sea trial of a new, split-beam echo sounder, the SIMRAD ES380 system, is described following a review of the split-beam principle, outline of its realization in hardware and software, and description of ...