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:

Recent Publications

P. Durdaut, J. Reermann, S. Zabel, Ch. Kirchhof, E. Quandt, F. Faupel, G. Schmidt, R. Knöchel, and M. Höft: Modeling and Analysis of Noise Sources for Thin-Film Magnetoelectric Sensors Based on the Delta-E Effect, IEEE Transactions on Instrumentation and Measurement, published online, 2017

P. Durdaut, S. Salzer, J. Reermann, V. Röbisch, J. McCord, D. Meyners, E. Quandt, G. Schmidt, R. Knöchel, and M. Höft: Improved Magnetic Frequency Conversion Approach for Magnetoelectric Sensors, IEEE Sensors Letters, published online, 2017

 

Website News

18.06.2017: Page about KiRAT news added (also visible in KiRAT).

31.05.2017: Some pictures added.

23.04.2017: Time line for the lecture "Adaptive Filters" added.

13.04.2017: List of PhD theses added.

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

Alexej Namenas - A New Guy in the Team

In June Alexej Namenas started in the DSS Team. He will work on real-time tracking algorithms for SONAR applications. Alexej has done both theses (Bachelor and Master) with us. The Bachelor thesis in audio processing (beamforming) and the Master thesis in the medical field (real-time electro- and magnetocardiography). In addition, he has intership erperience in SONAR processing.

We are pretty ...


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