GeoSwath Plus multibeam echosounder offers new filtering
An intrinsic part in processing phase measuring bathymetry data is filtering the seafloor return from the raw data, which also includes background noise of electronic and acoustic origin, water column returns and sea surface backscatter. Previous filters were developed assuming a relatively smooth seafloor. It has been a labour intensive task adopting the filter parameters to maintain vertical structures and large objects. The feature filter automates this task with a large gain in processing speed, even in terrain that was considered difficult to process previously, such as harbour environments, engineering structures, shipwrecks and debris.