Fleiri fleirstrálað ekkolodd

Aquaculture food production grows faster than other major food production sectors, and in the Faroe Islands,
salmon accounts for nearly half of the countries export
value. In order to to keep up width the global trend, fishfarming in the Faroe Islands has moved from sheltered
locations, to more exposed farming sites. Understanding
the behaviour of fish-farming equipment and their inhabitants at exposed sites is important for ensuring fish welfare, and by extension, profits. Measurement equipment
and methods make used today make it difficult to obtain
an accurate description of the cage and the fish distribution and movement, since the cages are very large and
in exposed sites are subject to large deflections and deformations. Typical Sonars have a comparatively high
range, compared to optical cameras, but lack the ability to measure in different direction. Multibeam sonars
allow for spatial information of its surroundings to be
gathered, but suffer from side-lobe interference at distances longer than the distance to large surfaces, such as
the water surface. This issue, can largely be mitigated
by using multiple multibeam sonars, running in a multistatic configuration. The aim of this project is to develop
a multistatic multibeam system and methods to collect
and extract spatial information about the extent of the
cage, and the distribution of the biomass within. These
methods can be used to get a better understanding of the
behaviour of fish farming equipment and its inhabitants.