Simulation of 3D Seafloor Mapping from Multibeam Sonar Data Using Electronic Chart Bathymetry Background

摘要

The paper investigates 3~D mapping of scafloor, which uses modelling of multibeam sonar echoes reflected from seafloor 3~D images, reconstructed from the bathymetry of electronic navigational charts. In the first stage, the 3~D relief of seabed surface was derived from bathymetry soundings data contained in vectorised digital navigational charts. Second stage constitutes the simulation of the set of hypothetical multibeam sonar echoes scattered on the bottom surface. Finally, the bottom surface is reconstructed from acoustic data and compared with the images extracted from the charts. The performance of the applied procedure was evaluated and discussed.