Multireceiver acoustic communications in time-varying environments
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Authors
Aydogmus, Murat
Subjects
Bellhop
ray-tracing model
Kalman filter
forward-error correction
channel estimation
underwater acoustics
acoustic communications
multipath channel.
ray-tracing model
Kalman filter
forward-error correction
channel estimation
underwater acoustics
acoustic communications
multipath channel.
Advisors
Cristi, Roberto
Date of Issue
2014-06
Date
June 2014
Publisher
Monterey, California: Naval Postgraduate School
Language
Abstract
In this thesis, we present a two-receiver underwater acoustic communications system. It is based on the Kalman filter for equalization and tracking of acoustic channels characterized by considerable multipath. To model this channel and its dependency on the ocean environment we use the Bellhop acoustic ray tracing model. Error-correction coding is applied to the source data. Recursively updated channel estimates are used to update the state filters and tracking of the channel. It is shown that, under moderate conditions of Doppler shift and signal-to-noise (SNR) ratio, this algorithm is effective in tracking the channel and reconstructing the transmitted data.
Type
Thesis
Description
Series/Report No
Department
Engineering Acoustics Academic Committee
Organization
Identifiers
NPS Report Number
Sponsors
Funder
Format
Citation
Distribution Statement
Approved for public release; distribution is unlimited.
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.