Advanced data communication techniques for sub-sea applications

This thesis details research carried out in the through-water data communication field. An overview of the phenomena that prohibit acoustic communication in long-range shallow-water channels is constructed. Background research found that robust communications has not been achieved using single recei...

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Main Author: Brian R.S. Darby
Format: Default Thesis
Published: 2000
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Online Access:https://hdl.handle.net/2134/36167
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spelling rr-article-95273632000-01-01T00:00:00Z Advanced data communication techniques for sub-sea applications Brian R.S. Darby (7201820) Mechanical engineering not elsewhere classified untagged Mechanical Engineering not elsewhere classified This thesis details research carried out in the through-water data communication field. An overview of the phenomena that prohibit acoustic communication in long-range shallow-water channels is constructed. Background research found that robust communications has not been achieved using single receiver reception in this environment. This work investigates the modulation technique itself and aims to improve on existing schemes (that have been applied to this environment). This is achieved with innovative techniques, based on multiple-frequency-shift-keying (MFSK) and space-frequency-shift-keying (SFSK). A number of industrial specified restrictions are placed on this work, including bandwidth restriction. Novel ways of intrinsically transmitting synchronisation information are therefore implemented. The development of appropriate systems is covered with general and platform specific implementation strategies being covered. A single modulation scheme (the three-chip four-frequency-shift-keying, 3C4FSK, scheme) has been put forward for consideration in any future research. Practical lab-based tests and the mathematical analysis is detailed. Conclusions recommend further funding of long-range shallow sea-water trails of the 3C4FSK scheme and for the industrial scope of this work to allow investigation into multiple receiver systems that allow spatial processing of the signal as these schemes have been shown lately to have potential in long-range channels. 2000-01-01T00:00:00Z Text Thesis 2134/36167 https://figshare.com/articles/thesis/Advanced_data_communication_techniques_for_sub-sea_applications/9527363 CC BY-NC-ND 4.0
institution Loughborough University
collection Figshare
topic Mechanical engineering not elsewhere classified
untagged
Mechanical Engineering not elsewhere classified
spellingShingle Mechanical engineering not elsewhere classified
untagged
Mechanical Engineering not elsewhere classified
Brian R.S. Darby
Advanced data communication techniques for sub-sea applications
description This thesis details research carried out in the through-water data communication field. An overview of the phenomena that prohibit acoustic communication in long-range shallow-water channels is constructed. Background research found that robust communications has not been achieved using single receiver reception in this environment. This work investigates the modulation technique itself and aims to improve on existing schemes (that have been applied to this environment). This is achieved with innovative techniques, based on multiple-frequency-shift-keying (MFSK) and space-frequency-shift-keying (SFSK). A number of industrial specified restrictions are placed on this work, including bandwidth restriction. Novel ways of intrinsically transmitting synchronisation information are therefore implemented. The development of appropriate systems is covered with general and platform specific implementation strategies being covered. A single modulation scheme (the three-chip four-frequency-shift-keying, 3C4FSK, scheme) has been put forward for consideration in any future research. Practical lab-based tests and the mathematical analysis is detailed. Conclusions recommend further funding of long-range shallow sea-water trails of the 3C4FSK scheme and for the industrial scope of this work to allow investigation into multiple receiver systems that allow spatial processing of the signal as these schemes have been shown lately to have potential in long-range channels.
format Default
Thesis
author Brian R.S. Darby
author_facet Brian R.S. Darby
author_sort Brian R.S. Darby (7201820)
title Advanced data communication techniques for sub-sea applications
title_short Advanced data communication techniques for sub-sea applications
title_full Advanced data communication techniques for sub-sea applications
title_fullStr Advanced data communication techniques for sub-sea applications
title_full_unstemmed Advanced data communication techniques for sub-sea applications
title_sort advanced data communication techniques for sub-sea applications
publishDate 2000
url https://hdl.handle.net/2134/36167
_version_ 1756145634567520256