Browsing Fisken og havet (1958- ) by Author "Korneliussen, Rolf J."
Now showing items 1-5 of 5
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A unifying theory explaining different power budget formulations used in modern scientific echosounders for fish abundance estimation
Lunde, Per; Korneliussen, Rolf J. (Fisken og Havet;7-2014, Research report, 2014-12-31)Acoustic methods used in fish abundance estimation constitute a key part of the analytic assessment that makes the basis for fisheries research and international regulations of marine resources. The methods rely on ... -
A unifying theory explaining different power budget formulations used in modern scientific echosounders for fish abundance estimation
Lunde, Per; Korneliussen, Rolf J. (Research report, 2014-12-31)Acoustic methods used in fish abundance estimation constitute a key part of the analytic assessment that makes the basis for fisheries research and international regulations of marine resources. The methods rely on power ... -
Power-budget and echo-integrator equations for fish abundance estimation
Lunde, Per; Pedersen, Audun O.; Korneliussen, Rolf J.; Tichy, Frank E.; Nes, Håvard (Fisken og Havet;10-2013, Research report, 2013-12-31)For abundance estimation and species identification on fisheries acoustic surveys, control with temperature and finite amplitude effects in the sea demands the calibration factor C of the conventional echo-integrator ... -
Some methods for the generation of combined-frequency echograms
Korneliussen, Rolf J. (Fisken og havet, Research report, 2002)Calibrated and digitised data from two or more discrete echo sounder frequencies can be combined for the purpose of separating and extracting the acoustic scattering from zooplankton and fish in mixed recordings. Methods ... -
The Hermes Lander project - the technology, the data, and the evaluation of concept and results
Godø, Olav Rune; Tenningen, Eirik; Ostrowski, Marek; Kubilius, Rokas; Kutti, Tina; Korneliussen, Rolf J.; Fosså, Jan Helge (Fisken og havet;3-2012, Research report, 2012)This report summarizes technology, operations, experience, and scientific results from the Hermes Lander project. The Project established an autonomous, multi-sensor, sub-sea sensor platform powered by batteries. The ...