Browsing Articles by Author "Eidem, Ellen Johanne"
Now showing items 1-4 of 4
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Acoustic seabed classification using QTC IMPACT on single-beam echo sounder data from the Norwegian Channel, northern North Sea
Eidem, Ellen Johanne; Landmark, Knut (2013)Sediment mapping is important for understanding the physical processes, the impact of human activity, and the conditions for marine life on the seabed. For this purpose, the seabed classification tool QTC IMPACT analyses ... -
Correlation between sediment properties and seafloor characterization maps based on multibeam backscatter data from three regions off the coast of Norway
Eidem, Ellen Johanne (2017)Multibeam echo sounder data from Kongsberg EM 1002 and EM 710 (70– 100 kHz) acquired between 2003 and 2014 were processed using QPS Fledermaus Geocoder Toolbox (FMGT) to produce backscatter mosaics and maps of estimated ... -
Correlations between sound speed and density in seabed sediment cores collected in Norwegian waters
Eidem, Ellen Johanne; Kolstrup, Marianne Lanzky (2022-08-08)In modelling of underwater sound propagation, knowledge about the seabed’s acoustic properties is essential, especially sound speed and density. These two properties are highly correlated, and standard empirical regressions ... -
Improved active sonar tactical support by through-the-sensor estimation of acoustic seabed properties
Vossen, Robbert van; Eidem, Ellen Johanne; Ivansson, Sven; Chalindar, Bruno; Dybedal, Johnny; Colin, Mathieu; Benders, Frank; Andersson, Brodd Leif; Juhel, Bénédicte; Cristol, Xavier; Olsen, Geir-Kyrre; Pihl, Jörgen; Tveit, Elling; Jespers, Stephane; Ainslie, Michael (2014)Accurate environmental information is required for obtaining confident sonar performance predictions. This environmental information is, however, often unreliable or unavailable. To support antisubmarine warfare (ASW) ...