Application of the Gauss–Markov theorem for equalization of a hydroacoustic transmission channel

Researchers in the field of modern hydroacoustics frequently encounter such problems as interference and noise in communication channels. Multipath propagation is an inevitable hydroacoustic communication problem arising in a sound channel due to reflections from the water surface and seabed. In general, this may decrease the overall communication quality. As a rule, noise cannot be completely eliminated, although its influence can be minimized. In this article, we describe a method for equalizing the hydroacoustic transmission channel using the Gauss–Markov theorem. This method can be used for reducing the multipath propagation effect and obtaining an unbiased estimate with minimal variance.

Authors: S. V. Shostak, A. V. Bengard

Direction: Physics

Keywords: hydroacoustic channel, finite impulse response, filtering, Gauss–Markov theorem

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