Underwater Telephone Systems

The wireless underwater communication has many civil and military applications and the interest in this field has grown over the last decades. Wireless signal transmission enables the communication with autonomous underwater vehicles (AUV) and roboter. Furthermore, with the help of wireless communication the oceans can get surveyed and monitored.

Another application is the underwater telephone, which enables the communication with and in between submarines and divers. The conventional techniques for wireless, terrestrial communications cannot be used for the signal transmission underwater, because water as a transmission medium has different characteristics to air. High attenuation and non-linearity’s like the Doppler effect, multipath-propagation and rising underwater noise leads to a severe decrease in transmission quality, in particular over big distances. The general technique for communication with submarines has not changed much since the second world war.

The recent research tries to improve the signal quality and signal range while complying with the NATO-standards.

Corresponding Publications:

Website News

03.12.2017: Added pictures from our Sylt meeting.

01.10.2017: Started with a Tips and Tricks section for KiRAT.

01.10.2017: Talks from Jonas Sauter (Nuance) and Vasudev Kandade Rajan (Harman/Samsung) added.

13.08.2017: New Gas e.V. sections (e.g. pictures or prices) added.

Recent Publications

J. Reermann, P. Durdaut, S. Salzer, T. Demming, A. Piorra, E. Quandt, N. Frey, M. Höft, and G. Schmidt: Evaluation of Magnetoelectric Sensor Systems for Cardiological Applications, Measurement (Elsevier), ISSN 0263-2241, https://doi.org/­10.1016/­j.measurement.2017.09.047, 2017

S. Graf, T. Herbig, M. Buck, G. Schmidt: Low-Complexity Pitch Estimation Based on Phase Differences Between Low-Resolution Spectra, Proc. Interspeech, pp. 2316 -2320, 2017

Contact

Prof. Dr.-Ing. Gerhard Schmidt

E-Mail: gus@tf.uni-kiel.de

Christian-Albrechts-Universität zu Kiel
Faculty of Engineering
Institute for Electrical Engineering and Information Engineering
Digital Signal Processing and System Theory

Kaiserstr. 2
24143 Kiel, Germany

Recent News

Jugend Forscht

On November 24th, one of our DSS team members, Owe Wisch, took part in the "Jugend forscht Perspektivforum" at the CAU. Thirty young students from the "Jugend forscht" project came to Kiel and participated in three different workshops focusing on career paths in maritime climate protection. Owe Wisch from our chair lead one of the workshops and presented his research topics, beamforming ...


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