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Performance of coherent modulation scheme used in acoustic underwater communication system

Schmidt Jan H., Schmidt Aleksander M., Kochańska Iwona

Vibrations in Physical Systems

2019

Vol. 30, nr 1

art. no. 2019135

The development of an acoustic underwater communication system for shallow waters is still a big scientific and construction challenge. Currently, non-coherent modulations in combination with strong channel coding are used to achieve reliable communication with low rate in such a channel. To obtain transmission with a higher transmission rate, it is required to use coherent modulation. This paper presents the assumptions of such a transmission system and the results of data transmission carried out by this system in the channel with the Rician fading, which reflects the short range shallow water channel. A digital version of the carrier phase modulation known as Phase-Shift Keying was selected for simulation.