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Multibeam sonar backscatter data processing

Multibeam sonar backscatter data processing
Multibeam sonar backscatter data processing
Multibeam sonar systems now routinely record seafloor backscatter data, which are processed into backscatter mosaics and angular responses, both of which can assist in identifying seafloor types and morphology. Those data products are obtained from the multibeam sonar raw data files through a sequence of data processing stages that follows a basic plan, but the implementation of which varies greatly between sonar systems and software. In this article, we provide a comprehensive review of this backscatter data processing chain, with a focus on the variability in the possible implementation of each processing stage. Our objective for undertaking this task is twofold: (1) to provide an overview of backscatter data processing for the consideration of the general user and (2) to provide suggestions to multibeam sonar manufacturers, software providers and the operators of these systems and software for eventually reducing the lack of control, uncertainty and variability associated with current data processing implementations and the resulting backscatter data products. One such suggestion is the adoption of a nomenclature for increasingly refined levels of processing, akin to the nomenclature adopted for satellite remote-sensing data deliverables.
0025-3235
121-137
Schimel, Alexandre C. G.
de8189bf-d274-4834-96fd-4dd9f3f8cbe3
Beaudoin, Jonathan
e17fc251-6414-49f5-ab83-8e06c4da33c5
Parnum, Iain M.
b5c7762b-eacd-4938-a26a-e0c08a8fac4f
Le Bas, Tim
5880f375-bbf2-4f20-8618-7f344aa76f7f
Schmidt, Val
8f27e575-3059-4385-b590-c2219096f83e
Keith, Gordon
8cc0ec6d-f2b6-4486-bc5a-c82742dc8aa3
Ierodiaconou, Daniel
f547c67a-22f7-479a-ab6f-43ed5465b4f6
Schimel, Alexandre C. G.
de8189bf-d274-4834-96fd-4dd9f3f8cbe3
Beaudoin, Jonathan
e17fc251-6414-49f5-ab83-8e06c4da33c5
Parnum, Iain M.
b5c7762b-eacd-4938-a26a-e0c08a8fac4f
Le Bas, Tim
5880f375-bbf2-4f20-8618-7f344aa76f7f
Schmidt, Val
8f27e575-3059-4385-b590-c2219096f83e
Keith, Gordon
8cc0ec6d-f2b6-4486-bc5a-c82742dc8aa3
Ierodiaconou, Daniel
f547c67a-22f7-479a-ab6f-43ed5465b4f6

Schimel, Alexandre C. G., Beaudoin, Jonathan, Parnum, Iain M., Le Bas, Tim, Schmidt, Val, Keith, Gordon and Ierodiaconou, Daniel (2018) Multibeam sonar backscatter data processing. Marine Geophysical Researches, 39 (1-2), 121-137. (doi:10.1007/s11001-018-9341-z).

Record type: Article

Abstract

Multibeam sonar systems now routinely record seafloor backscatter data, which are processed into backscatter mosaics and angular responses, both of which can assist in identifying seafloor types and morphology. Those data products are obtained from the multibeam sonar raw data files through a sequence of data processing stages that follows a basic plan, but the implementation of which varies greatly between sonar systems and software. In this article, we provide a comprehensive review of this backscatter data processing chain, with a focus on the variability in the possible implementation of each processing stage. Our objective for undertaking this task is twofold: (1) to provide an overview of backscatter data processing for the consideration of the general user and (2) to provide suggestions to multibeam sonar manufacturers, software providers and the operators of these systems and software for eventually reducing the lack of control, uncertainty and variability associated with current data processing implementations and the resulting backscatter data products. One such suggestion is the adoption of a nomenclature for increasingly refined levels of processing, akin to the nomenclature adopted for satellite remote-sensing data deliverables.

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More information

Accepted/In Press date: 18 January 2018
e-pub ahead of print date: 31 January 2018
Published date: June 2018

Identifiers

Local EPrints ID: 422772
URI: http://eprints.soton.ac.uk/id/eprint/422772
ISSN: 0025-3235
PURE UUID: ced9f127-72c5-4ff9-b0e1-dc17de0d8fa1

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Date deposited: 03 Aug 2018 16:31
Last modified: 09 Jan 2022 02:35

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Contributors

Author: Alexandre C. G. Schimel
Author: Jonathan Beaudoin
Author: Iain M. Parnum
Author: Tim Le Bas
Author: Val Schmidt
Author: Gordon Keith
Author: Daniel Ierodiaconou

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