Experimental study of an acoustic communication system in shallow-water conditions

The paper presents the results of experimental studies of an acoustic communication system containing parallel transmission digital information channels, which came about from applying the principles of orthogonal frequency division of individual information channels, resulting in an increased infor...

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Bibliographic Details
Published in:Acoustical physics 2013-11, Vol.59 (6), p.615-624
Main Authors: Bobrovskii, I. V., Yagotinets, V. P.
Format: Article
Language:English
Subjects:
Acoustics
Channels
Classical Problems of Linear Acoustics and Wave Theory
Communication systems
Digital
Estimates
Frequency bands
Frequency division
Physics
Physics and Astronomy
Signal processing
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Summary:The paper presents the results of experimental studies of an acoustic communication system containing parallel transmission digital information channels, which came about from applying the principles of orthogonal frequency division of individual information channels, resulting in an increased information rate. Received signals were processed by two separate receivers differing in the method by which the pulse response parameters of the medium were estimated during signal propagation. It is shown that to increase the reliability of received digital information for coherent separated reception of a multipath signal, it is necessary to estimate the parameters of this signal’s components in frequency bands corresponding to individual information channels. When such estimates were taken into account, the acoustic communication system provided error-less reception of digital information in all experiments conducted under conditions of the shallow Volgograd Reservoir and Lake Ladoga.
ISSN:1063-7710
1562-6865
DOI:10.1134/S106377101306002X