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A Novel Sub-Bottom Profiler and Signal Processor

In this paper, we introduce a novel sub-bottom profiler, making good use of the Mills cross configuration of multibeam sonar and synthetic aperture techniques of the synthetic aperture sonar system. The receiver array is mounted along the ship keel, while the transmitter array is mounted perpendicul...

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Detalles Bibliográficos
Autores principales: Tan, Cheng, Zhang, Xuebo, Yang, Peixuan, Sun, Miao
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6891379/
https://www.ncbi.nlm.nih.gov/pubmed/31752419
http://dx.doi.org/10.3390/s19225052
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author Tan, Cheng
Zhang, Xuebo
Yang, Peixuan
Sun, Miao
author_facet Tan, Cheng
Zhang, Xuebo
Yang, Peixuan
Sun, Miao
author_sort Tan, Cheng
collection PubMed
description In this paper, we introduce a novel sub-bottom profiler, making good use of the Mills cross configuration of multibeam sonar and synthetic aperture techniques of the synthetic aperture sonar system. The receiver array is mounted along the ship keel, while the transmitter array is mounted perpendicular to the receiver array. With the synthetic aperture technique, the along-track resolution can be greatly improved. The system often suffers from motion error, which severely degrades the imaging performance. To solve this problem, the imaging algorithm with motion compensation (MC) is proposed. With the presented method, the motion error is first estimated based on overlapped elements between successive pulses. Then, the echo data is processed by using the range migration algorithm based on the phase center approximation (PCA) method, which simultaneously performs the MC with the estimated motion error. In order to validate the proposed sub-bottom profiler and data processing method, some simulations and lake trial results are discussed. The processing results of the real data further indicate that the presented configuration has great potential to find buried objects in seabed sediments.
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spelling pubmed-68913792019-12-12 A Novel Sub-Bottom Profiler and Signal Processor Tan, Cheng Zhang, Xuebo Yang, Peixuan Sun, Miao Sensors (Basel) Article In this paper, we introduce a novel sub-bottom profiler, making good use of the Mills cross configuration of multibeam sonar and synthetic aperture techniques of the synthetic aperture sonar system. The receiver array is mounted along the ship keel, while the transmitter array is mounted perpendicular to the receiver array. With the synthetic aperture technique, the along-track resolution can be greatly improved. The system often suffers from motion error, which severely degrades the imaging performance. To solve this problem, the imaging algorithm with motion compensation (MC) is proposed. With the presented method, the motion error is first estimated based on overlapped elements between successive pulses. Then, the echo data is processed by using the range migration algorithm based on the phase center approximation (PCA) method, which simultaneously performs the MC with the estimated motion error. In order to validate the proposed sub-bottom profiler and data processing method, some simulations and lake trial results are discussed. The processing results of the real data further indicate that the presented configuration has great potential to find buried objects in seabed sediments. MDPI 2019-11-19 /pmc/articles/PMC6891379/ /pubmed/31752419 http://dx.doi.org/10.3390/s19225052 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Tan, Cheng
Zhang, Xuebo
Yang, Peixuan
Sun, Miao
A Novel Sub-Bottom Profiler and Signal Processor
title A Novel Sub-Bottom Profiler and Signal Processor
title_full A Novel Sub-Bottom Profiler and Signal Processor
title_fullStr A Novel Sub-Bottom Profiler and Signal Processor
title_full_unstemmed A Novel Sub-Bottom Profiler and Signal Processor
title_short A Novel Sub-Bottom Profiler and Signal Processor
title_sort novel sub-bottom profiler and signal processor
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6891379/
https://www.ncbi.nlm.nih.gov/pubmed/31752419
http://dx.doi.org/10.3390/s19225052
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