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http://dx.doi.org/10.1016/j.ijnaoe.2017.08.004

Numerical modeling and simulation technique in time-domain for multibeam echo sounder  

Jung, Donghwan (Laboratory for Underwater Acoustics, Korea Maritime and Ocean University)
Kim, Jeasoo (Laboratory for Underwater Acoustics, Korea Maritime and Ocean University)
Byun, Gihoon (Department of Convergence Study on the Ocean Science and Technology, Korea Maritime and Ocean University)
Publication Information
International Journal of Naval Architecture and Ocean Engineering / v.10, no.2, 2018 , pp. 225-234 More about this Journal
Abstract
A Multibeam Echo Sounder (MBES) is commonly used for rapid seafloor mapping. We herein present a time-domain integrated system simulation technique for MBES development. The Modeling and Simulation (M&S) modules consist of four parts: sensor array signal transmission, propagation and backscattering modeling in the ocean environment, beamforming of the received signals, and image processing. Also, the simulation employs a ray-theory-based algorithm to correct the reconstructed bathymetry, which has errors due to the refraction caused by the vertical sound velocity profile. The developed M&S technique enables design parameter verification and system parameter optimization for MBES. The framework of this technique can also be potentially used to characterize the seabed properties. Finally, typical seafloor images are presented and discussed.
Keywords
Image position; MBES; Multibeam echo sounder; Multibeam sonar;
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