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Disputation: Karl Jacob Hiden Rudander Karl Jacob Hiden Rudander by the Department of Technology Systems will be defending his thesis: 

"Underwater Acoustic Communication in the Very High-Frequency Band"

for the degree of Philosophiae Doctor.

Image may contain: Head, Ear, Lip, Cheek, Dress shirt.

The PhD defence will be fully digital and streamed directly using Zoom. The host of the session will moderate the technicalities while the chair of the defence will moderate the disputation.

Ex auditorio questions: the chair of the defence will invite the audience to ask ex auditorio questions either written or oral. This can be requested by clicking 'Participants -> Raise hand'.

Attend the disputation

Download Zoom

Request the thesis.

Trial lecture

Can be downloaded from 26.02.2021

Main research findings

There is increased activity in the subsea domain, which requires access to robust high-speed communication. Applications range from live video streaming within marine robotics to fish-telemetry in aquaculture. Existing underwater communication solutions are often unable to meet the new and emerging demands. New solutions are required. This thesis aims to improve the data rates in underwater communication, by means of coherent acoustic communication in the very high frequency (VHF) band.

Combined with a 64-hydrophone line array real-time information rates of 465 kbps over 100 m, and 155 kbps over 1000 m is demonstrated in the VHF band. This has been made possible through the work in this thesis.

For more information

Ida Elisabeth Rydning, 

Technician, Arild Hemstad,

Published Jan. 12, 2021 12:49 PM - Last modified Jan. 12, 2021 12:49 PM