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Journal articles on the topic 'Multibeam sonar (MBS) systems'

Author: Grafiati

Published: 4 June 2021

Last updated: 29 January 2023

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1

Zhang, Wanyuan, Tian Zhou, Chao Xu, and Meiqin Liu. "A SIFT-Like Feature Detector and Descriptor for Multibeam Sonar Imaging." Journal of Sensors 2021 (July 15, 2021): 1–14. http://dx.doi.org/10.1155/2021/8845814.

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Multibeam imaging sonar has become an increasingly important tool in the field of underwater object detection and description. In recent years, the scale-invariant feature transform (SIFT) algorithm has been widely adopted to obtain stable features of objects in sonar images but does not perform well on multibeam sonar images due to its sensitivity to speckle noise. In this paper, we introduce MBS-SIFT, a SIFT-like feature detector and descriptor for multibeam sonar images. This algorithm contains a feature detector followed by a local feature descriptor. A new gradient definition robust to sp

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Moszynski, Marek, Andrzej Chybicki, Marcin Kulawiak, and Zbigniew Lubniewski. "A novel method for archiving multibeam sonar data with emphasis on efficient record size reduction and storage." Polish Maritime Research 20, no. 1 (2013): 77–86. http://dx.doi.org/10.2478/pomr-2013-0009.

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Abstract Over the past few years considerable advances in sonar technology, spatial positioning capabilities and computer processing power have lead to significant improvements in mapping, imaging and technologies of seafloor exploration. Recently, modern multibeam echosounder systems (MBES) capable of recording backscatter data for the whole water column, not just for the seabed, have become available thus providing data allowing for visualization and analysis of objects other than the seabed such as single fish, fish schools or pollution. Unlike bathymetric sonars, which only capture the sea

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Lockhart, Doug, Edward Saade, and Jerry Wilson. "New Developments in Multibeam Backscatter Data Collection and Processing." Marine Technology Society Journal 35, no. 4 (2001): 46–50. http://dx.doi.org/10.4031/002533201788057973.

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Recognition of the superior data and coverage from multibeam echosounders (MBES) has been widespread and is increasing rapidly. In addition to the significant value of ensonification of a swath as compared to a profile of bathymetric data, the acoustic data have been frequently presented as "psuedo-sidescan-sonar". Field programs conducted during 2001 using Reson MBES systems and TritonElics software gave us the opportunity to develop enhanced acoustic imagery by manipulation of the backscatter information within each MBES beam. This work has resulted in improved MBES data products using new a

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Wei, Bo, Haisen Li, Tian Zhou, and Siyu Xing. "Obtaining 3D High-Resolution Underwater Acoustic Images by Synthesizing Virtual Aperture on the 2D Transducer Array of Multibeam Echo Sounder." Remote Sensing 11, no. 22 (2019): 2615. http://dx.doi.org/10.3390/rs11222615.

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In recent decades, imaging sonar has been the most widely employed remote sensing instruments in the field of underwater detection. The multibeam echo sounder (MBES) plays an important role in obtaining high-accuracy seabed topography. However, the resolution of the MBES substantially decreases with the increasing distance. Synthetic aperture sonar (SAS) achieves constant resolution on the along-track, improving the fineness of the image. However, conventional side-scan SAS usually only achieves 2D images, and gaps always exist. In this modeling and experimental research paper, we propose a no

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Zirek, E., and F. Sunar. "Change Detection Of Seafloor Topography By Modeling Multitemporal Multibeam Echosounder Measurements." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XL-7 (September 19, 2014): 221–27. http://dx.doi.org/10.5194/isprsarchives-xl-7-221-2014.

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The term "topography" implies the study of numerous landforms that exist on or below the Earth and a detailed knowledge of topography is required to understand the most Earth processes. In the oceans, sea floor topography refers the geographic features of the sea floor including the configuration of a surface and the position of its natural and man-made features; and detailed nautical charts are fundamental for many sciences such as physical oceanography, biology and marine geology. <br><br> The hydrographic offices, which use the Multi Beam Echo sounder (MBE) system for the establ

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Leifer, Ira, Denis Chernykh, Natalia Shakhova, and Igor Semiletov. "Sonar gas flux estimation by bubble insonification: application to methane bubble flux from seep areas in the outer Laptev Sea." Cryosphere 11, no. 3 (2017): 1333–50. http://dx.doi.org/10.5194/tc-11-1333-2017.

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Abstract. Sonar surveys provide an effective mechanism for mapping seabed methane flux emissions, with Arctic submerged permafrost seepage having great potential to significantly affect climate. We created in situ engineered bubble plumes from 40 m depth with fluxes spanning 0.019 to 1.1 L s−1 to derive the in situ calibration curve (Q(σ)). These nonlinear curves related flux (Q) to sonar return (σ) for a multibeam echosounder (MBES) and a single-beam echosounder (SBES) for a range of depths. The analysis demonstrated significant multiple bubble acoustic scattering – precluding the use of a th

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Wan, Jiaxin, Zhiliang Qin, Xiaodong Cui, et al. "MBES Seabed Sediment Classification Based on a Decision Fusion Method Using Deep Learning Model." Remote Sensing 14, no. 15 (2022): 3708. http://dx.doi.org/10.3390/rs14153708.

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High-precision habitat mapping can contribute to the identification and quantification of the human footprint on the seafloor. As a representative of seafloor habitats, seabed sediment classification is crucial for marine geological research, marine environment monitoring, marine engineering construction, and seabed biotic and abiotic resource assessment. Multibeam echo-sounding systems (MBES) have become the most popular tool in terms of acoustic equipment for seabed sediment classification. However, sonar images tend to consist of obvious noise and stripe interference. Furthermore, the low e

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Di Maida, Germana, Agostino Tomasello, Filippo Luzzu, et al. "Discriminating between Posidonia oceanica meadows and sand substratum using multibeam sonar." ICES Journal of Marine Science 68, no. 1 (2010): 12–19. http://dx.doi.org/10.1093/icesjms/fsq130.

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Abstract Di Maida, G., Tomasello, A., Luzzu, F., Scannavino, A., Pirrotta, M., Orestano, C., and Calvo, S. 2011. Discriminating between Posidonia oceanica meadows and sand substratum using multibeam sonar. – ICES Journal of Marine Science, 68: 12–19. High-resolution, multibeam sonar (MBS) (455 kHz) was used to identify two typologies of seabed 8 m deep: Posidonia oceanica meadow and sandy substratum. The results showed that the heterogeneity of the architecture of the P. oceanica canopy and the relatively simple morphology of a sandy substratum can be detected easily by statistical indices suc

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Leary, Kate C. P., and Daniel Buscombe. "Estimating sand bed load in rivers by tracking dunes: a comparison of methods based on bed elevation time series." Earth Surface Dynamics 8, no. 1 (2020): 161–72. http://dx.doi.org/10.5194/esurf-8-161-2020.

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Abstract. Quantifying bed-load transport is paramount to the effective management of rivers with sand or gravel-dominated bed material. However, a practical and scalable field methodology for reliably estimating bed load remains elusive. A popular approach involves calculating transport from the geometry and celerity of migrating bedforms, extracted from time series of bed elevation profiles (BEPs) acquired using echo sounders. There are various echo sounder sampling methodologies to extract bed elevation profiles. Using two sets of repeat multibeam sonar surveys with high spatiotemporal resol

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Gavrilov, Alexander N., and Iain M. Parnum. "Fluctuations of Seafloor Backscatter Data From Multibeam Sonar Systems." IEEE Journal of Oceanic Engineering 35, no. 2 (2010): 209–19. http://dx.doi.org/10.1109/joe.2010.2041262.

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Penrose, John D., Alexander Gavrilov, and Iain M. Parnum. "Statistics of seafloor backscatter measured with multibeam sonar systems." Journal of the Acoustical Society of America 123, no. 5 (2008): 3628. http://dx.doi.org/10.1121/1.2934858.

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Ona, Egil, Valerie Mazauric, and Lars Nonboe Andersen. "Calibration methods for two scientific multibeam systems." ICES Journal of Marine Science 66, no. 6 (2009): 1326–34. http://dx.doi.org/10.1093/icesjms/fsp125.

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Abstract Ona, E., Mazauric, V., and Andersen, L. N. 2009. Calibration methods for two scientific multibeam systems. – ICES Journal of Marine Science, 66: 1326–1334. The new Simrad scientific multibeam systems, the MS70 sonar and the ME70 echosounder, each transmit over many electronically formed beams with centre frequencies spanning from 70 to 120 kHz. Calibrations of these systems are therefore more complex than for conventional split-beam echosounder systems. Two large tungsten-carbide spheres (75 and 84 mm diameter) were designed and manufactured to facilitate accurate field calibrations o

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Younkin, Eric, and S. Harper Umfress. "Performing a Sonar Acceptance Test of the Kongsberg EM712 Using Open-Source Software: A Case Study of Kluster." Geomatics 2, no. 4 (2022): 540–53. http://dx.doi.org/10.3390/geomatics2040029.

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In the world of seafloor mapping, the ability to explore and experiment with a dataset in its raw and processed forms is critical. Kluster is an open-source multibeam data processing software package written in Python that enables this exploration. Kluster provides a suite of multibeam processing features, including analysis, visualization, gridding, and data cleaning. We demonstrated these features using a recently acquired dataset from a Kongsberg EM712 multibeam echosounder aboard NOAA Ship Fairweather. This test dataset served to illustrate the fundamental analysis abilities of the softwar

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Kalwa, Joerg, Daniel Tietjen, Marina Carreiro-Silva, et al. "The European Project MORPH: Distributed UUV Systems for Multimodal, 3D Underwater Surveys." Marine Technology Society Journal 50, no. 4 (2016): 26–41. http://dx.doi.org/10.4031/mtsj.50.4.10.

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AbstractThe MORPH project (FP 7, 2012‐2016) is aimed at developing efficient methods and tools to map the underwater environment in situations that are not easily addressed by current technology. Namely, the missions that are of interest are those that involve underwater surveying and marine habitat mapping of rugged terrain and structures with full 3D complexity, including vertical cliffs. Potential applications include the study of cold water coral reef communities, ecosystems from underwater canyons, pipeline and harbor monitoring, or the inspection of wind turbine foundations. The project

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Francisco, Francisco, Anke Bender, and Jan Sundberg. "Use of multibeam imaging sonar for observation of marine mammals and fish on a marine renewable energy site." PLOS ONE 17, no. 12 (2022): e0275978. http://dx.doi.org/10.1371/journal.pone.0275978.

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Environmental data is crucial for planning, permitting, execution and post construction monitoring of marine renewable energy projects. In harsh conditions in which marine renewable energy is harvested, integrated monitoring platforms comprising multibeam imaging sonar systems coupled with other sensors can provide multiparametric data of the marine environment surrounding marine renewable energy installations. The aim of this study was to test the possibilities of observing the occurrence of fish and marine mammals using a multibeam imaging sonar system deployed at a wave power test site. The

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Thurman, E., J. Riordan, and D. Toal. "Terrain-adaptive ping sequencing of UUV integrated multibeam echosounder and sidescan sonar systems." Journal of Marine Engineering & Technology 9, no. 1 (2010): 37–46. http://dx.doi.org/10.1080/20464177.2010.11020230.

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De Moustier, Christian, and Haruyoshi Matsumoto. "Seafloor acoustic remote sensing with multibeam echo-sounders and bathymetric sidescan sonar systems." Marine Geophysical Researches 15, no. 1 (1993): 27–42. http://dx.doi.org/10.1007/bf01204150.

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Grote, Ann B., Michael M. Bailey, Joseph D. Zydlewski, and Joseph E. Hightower. "Multibeam sonar (DIDSON) assessment of American shad (Alosa sapidissima) approaching a hydroelectric dam." Canadian Journal of Fisheries and Aquatic Sciences 71, no. 4 (2014): 545–58. http://dx.doi.org/10.1139/cjfas-2013-0308.

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We investigated the fish community approaching the Veazie Dam on the Penobscot River, Maine, prior to implementation of a major dam removal and river restoration project. Multibeam sonar (dual-frequency identification sonar, DIDSON) surveys were conducted continuously at the fishway entrance from May to July in 2011. A 5% subsample of DIDSON data contained 43 793 fish targets, the majority of which were of Excellent (15.7%) or Good (73.01%) observation quality. Excellent quality DIDSON targets (n = 6876) were apportioned by species using a Bayesian mixture model based on four known fork length

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Francisco, Francisco, and Jan Sundberg. "Detection of Visual Signatures of Marine Mammals and Fish within Marine Renewable Energy Farms using Multibeam Imaging Sonar." Journal of Marine Science and Engineering 7, no. 2 (2019): 22. http://dx.doi.org/10.3390/jmse7020022.

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Techniques for marine monitoring have been greatly evolved over the past decades, making the acquisition of environmental data safer, more reliable and more efficient. On the other hand, the marine renewable energy sector has introduced dissimilar ways of exploring the oceans. Marine energy is mostly harvested in murky and high energetic places where conventional data acquisition techniques are impractical. This new frontier on marine operations brings the need for finding new techniques for environmental data acquisition, processing and analysis. Modern sonar systems, operating at high freque

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Krasnosky, Kristopher, Christopher Roman, and David Casagrande. "A bathymetric mapping and SLAM dataset with high-precision ground truth for marine robotics." International Journal of Robotics Research 41, no. 1 (2021): 12–19. http://dx.doi.org/10.1177/02783649211044749.

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In recent years, sonar systems for surface and underwater vehicles have increased in resolution and become significantly less expensive. As such, these systems are viable at a wide range of price points and are appropriate for a broad set of applications on surface and underwater vehicles. However, to take full advantage of these high-resolution sensors for seafloor mapping tasks an adequate navigation solution is also required. In GPS-denied environments this usually necessitates a simultaneous localization and mapping (SLAM) technique to maintain good accuracy with minimal error accumulation

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Dix, Michael, Amr Abd-Elrahman, Bon Dewitt, and Lou Nash. "Accuracy Evaluation of Terrestrial LIDAR and Multibeam Sonar Systems Mounted on a Survey Vessel." Journal of Surveying Engineering 138, no. 4 (2012): 203–13. http://dx.doi.org/10.1061/(asce)su.1943-5428.0000075.

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Korneliussen, Rolf J., Yngve Heggelund, Inge K. Eliassen, Ola K. Øye, Tor Knutsen, and John Dalen. "Combining multibeam-sonar and multifrequency-echosounder data: examples of the analysis and imaging of large euphausiid schools." ICES Journal of Marine Science 66, no. 6 (2009): 991–97. http://dx.doi.org/10.1093/icesjms/fsp092.

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Abstract Korneliussen, R. J., Heggelund, Y., Eliassen, I. K., Øye, O. K., Knutsen, T., and Dalen, J. 2009. Combining multibeam-sonar and multifrequency-echosounder data: examples of the analysis and imaging of large euphausiid schools. – ICES Journal of Marine Science, 66: 991–997. The first high-resolution, quantitative, multibeam sonar (Simrad MS70) ever developed was mounted in a keel of RV “G. O. Sars” with port-orientated beams. Each ping samples a volume of 60° horizontally × 45° vertically with 500 beams, which is often enough to insonify a complete school of fish or zooplankton. The la

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Bikonis, Krzysztof, Marek Moszynski, and Zbigniew Lubniewski. "Application of Shape From Shading Technique for Side Scan Sonar Images." Polish Maritime Research 20, no. 3 (2013): 39–44. http://dx.doi.org/10.2478/pomr-2013-0033.

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Abstract Digital signal processing technology has revolutionized a way of processing, visualisation and interpretation of data acquired by underwater systems. Through many years side scan sonars were one of the most widely used imaging systems in the underwater environment. Although they are relatively cheap and easy to deploy, more powerful sensors like multibeam echo sounders and sonars are widely used today and deliver 3D bathymetry of sea bottom terrain. Side scan sonar outputs data usually in a form of grey level 2D acoustic images but the analysis of such pictures performed by human eye

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Kjeldsen, Kristian Kjellerup, Reimer Wilhelm Weinrebe, Jørgen Bendtsen, Anders Anker Bjørk, and Kurt Henrik Kjær. "Multibeam bathymetry and CTD measurements in two fjord systems in southeastern Greenland." Earth System Science Data 9, no. 2 (2017): 589–600. http://dx.doi.org/10.5194/essd-9-589-2017.

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Abstract. We present bathymetry and hydrological observations collected in the summer of 2014 from two fjord systems in southeastern Greenland with a multibeam sonar system. Our results provide a detailed bathymetric map of the fjord complex around the island of Skjoldungen in Skjoldungen Fjord and the outer part of Timmiarmiut Fjord and show far greater depths compared to the International Bathymetric Chart of the Arctic Ocean. The hydrography collected shows different properties in the fjords with the bottom water masses below 240 m in Timmiarmiut Fjord being 1–2 °C warmer than in the two fj

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Zube, Angelika, Dominik Kleiser, Alexander Albrecht, et al. "Autonomously mapping shallow water environments under and above the water surface." at - Automatisierungstechnik 70, no. 5 (2022): 482–95. http://dx.doi.org/10.1515/auto-2021-0145.

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Abstract The paper describes an autonomous water vehicle (ASV) capable of autonomously mapping shallow water environments above and below the water surface. Over the past two years, Fraunhofer IOSB has developed a system that is fully electrified and equipped with extensive sensor technology (multibeam sonar, lidar, cameras, IMU, GNSS). For autonomous navigation, the complete processing pipeline was implemented, from obstacle detection and avoidance to trajectory planning and control to multi-sensor localization and mapping. Above water, both lidar-based mapping and photogrammetric methods are

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Lindenbaum, C., J. D. Bennell, E. I. S. Rees, et al. "Small-scale variation within a Modiolus modiolus (Mollusca: Bivalvia) reef in the Irish Sea: I. Seabed mapping and reef morphology." Journal of the Marine Biological Association of the United Kingdom 88, no. 1 (2008): 133–41. http://dx.doi.org/10.1017/s0025315408000374.

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Surveys by digital side-scan sonar, RoxAnnTM acoustic ground discrimination systems, multibeam echosounder and a sub-bottom profiling system showed that a Modiolus modiolus reef, in the Irish Sea off Pen Llŷn, north-west Wales, had a distinctive morphology and acoustic characteristics. The extent of the reef could therefore be determined and the benthic structure reliably mapped. The biogenic reef is in an area with moderately strong tidal currents and overlays lag gravel and cobbles with patchy sand veneers. The mussels form an undulating surface, orientated perpendicular to the current, with

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Matsumoto, Haruyoshi, Robert P. Dziak, and Christopher G. Fox. "Estimation of seafloor microtopographic roughness through modeling of acoustic backscatter data recorded by multibeam sonar systems." Journal of the Acoustical Society of America 94, no. 5 (1993): 2776–87. http://dx.doi.org/10.1121/1.407361.

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Shaw, John. "Geomorphic Evidence of Postglacial Terrestrial Environments on Atlantic Canadian Continental Shelves." Géographie physique et Quaternaire 59, no. 2-3 (2007): 141–54. http://dx.doi.org/10.7202/014752ar.

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Abstract Changes in the geography of Atlantic Canada since the last glacial maximum (LGM) are grouped into three phases. The first phase (LGM – ca. 13 ka BP) commences with glaciers at the edge of the continental shelves, and ends with the glaciers having retreated to near modern coasts. In the second phase (ca. 13 ka BP‑10 ka BP), glaciers were mainly on land; on the continental shelves there were scattered small ice caps and an outer-shelf archipelago. Early in phase three, beginning ca. 10 ka BP, glaciers were largely absent, and the archipelago was gradually submerging; elsewhere, falling

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Maki, Toshihiro, Hiroumi Horimoto, Takashi Ishihara, and Kazuya Kofuji. "Autonomous Tracking of Sea Turtles based on Multibeam Imaging Sonar: Toward Robotic Observation of Marine Life." IFAC-PapersOnLine 52, no. 21 (2019): 86–90. http://dx.doi.org/10.1016/j.ifacol.2019.12.288.

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Shaw, John, Yongsheng Wu, and D. Patrick Potter. "Distribution and morphology of inner-shelf sand bodies off southwest Newfoundland based on merged multibeam sonar and LiDAR data." Canadian Journal of Earth Sciences 57, no. 1 (2020): 114–22. http://dx.doi.org/10.1139/cjes-2018-0311.

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The inner shelf off southwest Newfoundland, bordering the Laurentian Channel, was mapped with multi-beam sonar between depths of 200 and ∼20 m, overlapping with coverage by marine/terrestrial LiDAR from maximum depths of 30 m to above sea level. The new data provide the first clear view of linkages between terrestrial and nearshore coastal systems and the inner shelf. Offshore sand reservoirs associated with adjacent sandy coastal barriers and spits are thin (∼2 m), and isolated from one another, so that bedrock is the dominant seafloor terrain on the inner most shelf. The offshore sand reserv

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Maki, Toshihiro, Hiroumi Horimoto, Takashi Ishihara, and Kazuya Kofuji. "Tracking a Sea Turtle by an AUV with a Multibeam Imaging Sonar: Toward Robotic Observation of Marine Life." International Journal of Control, Automation and Systems 18, no. 3 (2020): 597–604. http://dx.doi.org/10.1007/s12555-019-0690-4.

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Mugnai, F., A. Ridolfi, M. Bianchi, M. Franchi, and G. Tucci. "DEVELOPING AFFORDABLE BATHYMETRIC ANALYSIS TECHNIQUES USING NON-CONVENTIONAL PAYLOAD FOR CULTURAL HERITAGE INSPECTIONS." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLII-2/W15 (August 23, 2019): 807–11. http://dx.doi.org/10.5194/isprs-archives-xlii-2-w15-807-2019.

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<p><strong>Abstract.</strong> This paper focuses on the implementation of new techniques for bathymetric inspections. The scope is the exploitation of sensors, usually and commonly used for navigation, namely the altimeter and the Forward Looking Sonar (FLS), for identifying objects which are laying on the sea floor. In this particular framework, the low spatial resolution and coverage of these sensors have been enhanced through the application of classical computational geometry. The altimeter and the FLS are part of the most common underwater navigation systems, and they ar

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Lin, Ying-Tsong, Jason Chaytor, Gregory Packard, Tzu-Ting Chen, and Natalie Kukshtel. "Acoustic seabed characterization with autonomous underwater vehicles." Journal of the Acoustical Society of America 152, no. 4 (2022): A102. http://dx.doi.org/10.1121/10.0015684.

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Autonomous underwater vehicles (AUVs) have been proven to be useful platforms to for acoustic seabed surveys with a variety of sonar systems. In this talk, results from two recent field experiments will be presented. One of the experiments was conducted in the New England shelf and upper slope areas using an AUV equipped with a towed hydrophone array and a 3.5 kHz sound source. The objective was to study the fine grained sediment (mud) layer on the shelf and the mutli-layer sub-bottom stratigraphy on the upper slope. The highlight of this first experiment is on the internal reflections from th

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Gourbesville, Philippe. "Data and hydroinformatics: new possibilities and challenges." Journal of Hydroinformatics 11, no. 3-4 (2009): 330–43. http://dx.doi.org/10.2166/hydro.2009.143.

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The technology evolution, with new types of sensors such as acoustic Doppler current profiler (ADCP), multibeam sonars, light detection and ranging (LIDAR) and pushbroom cameras, has deeply modified the quality and the quantity of data available on hydro-environments. The hydroinformatics systems now have the possibility to investigate the details of the physical hydrodynamic process as well as the complexity of the geometry of the continental and marine environments. This new situation represents a unique situation where all hydroinformatics approaches (data driven and physically based) can b

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Flinders, Ashton F., Larry A. Mayer, Brian A. Calder, and Andrew A. Armstrong. "Evaluation of arctic multibeam sonar data quality using nadir crossover error analysis and compilation of a full-resolution data product." Computers & Geosciences 66 (May 2014): 228–36. http://dx.doi.org/10.1016/j.cageo.2014.02.003.

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Su, Tianyun, Xishuang Li, Jiagang Li, and Lejun Liu. "Mapping Submarine Landslide: A Case Study in Northern Continental Slope of the South China Sea." Open Petroleum Engineering Journal 8, no. 1 (2015): 103–9. http://dx.doi.org/10.2174/1874834101508010103.

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Geographical Information Systems is a useful tool for marine geohazard mapping. This paper describes an integrated and systematic map-based approach for identification and characterization of submarine landslide with multidisciplinary data such as multibeam bathymetric data, multichannel seismic data, sidescan sonar and so on. Taking Liwan 3- 1 gas field in northern continental slope of Southern China Sea as a case study, a regional database is established to provide convenient services to manage search and extract the target data for geohazard mapping and identification. Bathymetric map and s

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Francisco, Francisco, Nicole Carpman, Irina Dolguntseva, and Jan Sundberg. "Use of Multibeam and Dual-Beam Sonar Systems to Observe Cavitating Flow Produced by Ferryboats: In a Marine Renewable Energy Perspective." Journal of Marine Science and Engineering 5, no. 3 (2017): 30. http://dx.doi.org/10.3390/jmse5030030.

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Gao, Jiaqi, Dongdong Peng, Tian Zhou, Tianhao Wang, and Chao Xu. "Terrain Matching Localization for Underwater Vehicle Based on Gradient Fitting." Journal of Sensors 2018 (December 30, 2018): 1–14. http://dx.doi.org/10.1155/2018/3717430.

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Terrain matching positioning is a promising method to overcome the problem that the inertial navigation error of the underwater vehicle accumulates over time. In the conventional terrain matching method, all measurement points are commonly used for matching and positioning. However, this method fails to be taken into a balanced consideration on both the computation complexity and the positioning accuracy. To reduce the computation and ensure the accuracy at the same time, an improved terrain matching method based on the gradient fitting is proposed in this paper. In the method, the gradient di

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Peng, Dongdong, Tian Zhou, Chao Xu, Wanyuan Zhang, and Jiajun Shen. "Marginalized Point Mass Filter with Estimating Tidal Depth Bias for Underwater Terrain-Aided Navigation." Journal of Sensors 2019 (May 2, 2019): 1–15. http://dx.doi.org/10.1155/2019/7340130.

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Terrain-aided navigation is a promising approach to submerged position updates for autonomous underwater vehicles by matching terrain measurements against an underwater reference map. With an accurate prediction of tidal depth bias, a two-dimensional point mass filter, only estimating the horizontal position, has been proven to be effective for terrain-aided navigation. However, the tidal depth bias is unpredictable or predicts in many cases, which will result in the rapid performance degradation if a two-dimensional point mass filter is still used. To address this, a marginalized point mass f

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de Moustier, C. "Approaches to Acoustic Backscattering Measurements From the Deep Seafloor." Journal of Energy Resources Technology 110, no. 2 (1988): 77–84. http://dx.doi.org/10.1115/1.3231369.

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Because the average ocean depth is four kilometers, seafloor investigations are mostly remote sensing operations. The primary means to determine the morphology, the structure, and the texture of the seafloor are acoustic. This paper considers the current seafloor remote sensing approaches involving acoustic backscattering. The physical constraints imposed by the ocean as a propagation medium, by the seafloor as a backscattering boundary, and by the measuring instruments are briefly reviewed. The sonar systems currently used by the oceanographic community for deep seafloor acoustic backscatteri

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Deiana, Giacomo, Luciano Lecca, Rita Melis, Mauro Soldati, Valentino Demurtas, and Paolo Orrù. "Submarine Geomorphology of the Southwestern Sardinian Continental Shelf (Mediterranean Sea): Insights into the Last Glacial Maximum Sea-Level Changes and Related Environments." Water 13, no. 2 (2021): 155. http://dx.doi.org/10.3390/w13020155.

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During the lowstand sea-level phase of the Last Glacial Maximum (LGM), a large part of the current Mediterranean continental shelf emerged. Erosional and depositional processes shaped the coastal strips, while inland areas were affected by aeolian and fluvial processes. Evidence of both the lowstand phase and the subsequent phases of eustatic sea level rise can be observed on the continental shelf of Sardinia (Italy), including submerged palaeo-shorelines and landforms, and indicators of relict coastal palaeo-environments. This paper shows the results of a high-resolution survey on the contine

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Deiana, Giacomo, Luciano Lecca, Rita Teresa Melis, Mauro Soldati, Valentino Demurtas, and Paolo Emanuele Orrù. "Submarine Geomorphology of the Southwestern Sardinian Continental Shelf (Mediterranean Sea): Insights into the Last Glacial Maximum Sea-Level Changes and Related Environments." Water 13, no. 2 (2021): 155. http://dx.doi.org/10.3390/w13020155.

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During the lowstand sea-level phase of the Last Glacial Maximum (LGM), a large part of the current Mediterranean continental shelf emerged. Erosional and depositional processes shaped the coastal strips, while inland areas were affected by aeolian and fluvial processes. Evidence of both the lowstand phase and the subsequent phases of eustatic sea level rise can be observed on the continental shelf of Sardinia (Italy), including submerged palaeo-shorelines and landforms, and indicators of relict coastal palaeo-environments. This paper shows the results of a high-resolution survey on the contine

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Northcutt, Jay G., Art A. Kleiner, Thomas S. Chance, and Joe Lee. "Cable Route Surveys Utilizing Autonomous Underwater Vehicles (AUVs)." Marine Technology Society Journal 34, no. 3 (2000): 11–16. http://dx.doi.org/10.4031/mtsj.34.3.3.

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Detailed geophysical surveys are required in both deep and shallow water to avoid potential hazards and to provide for the installation and safety of fiber optic telecommunication cables. Unfortunately, data obtained in potential burial zones with existing technology are slow and often data accuracy may be questionable. Towing cabled or tethered survey systems, from a project perspective, is time consuming and provides marginally adequate data. Additionally, a launch is usually required to survey between the surf and the safe working limits of the survey ship. This requires additional equipmen

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Febriawan, Hendra Kurnia, Yudo Haryadi, and Aleik Nurwahyudy. "Hydro-acoustic Survey and Edge-detection method in Investigation of a Passenger Vessel Accident in East Java, Indonesia." Buletin Oseanografi Marina 9, no. 1 (2020): 59–68. http://dx.doi.org/10.14710/buloma.v9i1.29442.

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As an archipelagic country, the shipping sector in Indonesia becomes crucial in delivering goods inter-island, and due to increasing transportation demands. However, that industry encounters some challenges of the ocean environment that could lead to vessel accidents. An investigation into the accident is crucial since this is related to the properties, environment, and life disadvantages. The wrecks of sinking vessels also could harm the environment, providing an obstacle to the sea passage hence increasing the risk of a shipping operation. A proper and comprehensive investigation needs to be

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Hoffmann, Jasper J. L., Rune Michaelis, Finn Mielck, Alexander Bartholomä, and Lasse Sander. "Multiannual Seafloor Dynamics around a Subtidal Rocky Reef Habitat in the North Sea." Remote Sensing 14, no. 9 (2022): 2069. http://dx.doi.org/10.3390/rs14092069.

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Rocky reefs provide complex structures in the otherwise largely sand-dominated coastal North Sea. Therefore, these reefs are highly important natural habitats for the functioning of coastal ecosystems, as they provide shelter, refuge and nursery grounds for various mobile and sessile species. In the North Sea, the spatial distribution of these habitats has been intensively investigated over recent years. However, these studies generally provide static accounts of the current state of these reef systems, but limited data exist on the temporal variations in sediment dynamics at and around natura

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Gustin, Franka, Ivor Rendulic, Nikola Miskovic, and Zoran Vukic. "Hand gesture recognition from multibeam sonar imagery**This work has been done within the scope of CADDY, a collaborative project funded by the European Community’s Seventh Framework Programme FP7-Challenge 2: Cognitive Systems and Robotics-under grant agreement 611373." IFAC-PapersOnLine 49, no. 23 (2016): 470–75. http://dx.doi.org/10.1016/j.ifacol.2016.10.450.

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Xie, Kaibing, Jian Yang, and Kang Qiu. "A Dataset with Multibeam Forward-Looking Sonar for Underwater Object Detection." Scientific Data 9, no. 1 (2022). http://dx.doi.org/10.1038/s41597-022-01854-w.

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AbstractMultibeam forward-looking sonar (MFLS) plays an important role in underwater detection. There are several challenges to the research on underwater object detection with MFLS. Firstly, the research is lack of available dataset. Secondly, the sonar image, generally processed at pixel level and transformed to sector representation for the visual habits of human beings, is disadvantageous to the research in artificial intelligence (AI) areas. Towards these challenges, we present a novel dataset, the underwater acoustic target detection (UATD) dataset, consisting of over 9000 MFLS images ca

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Leitão, Filipe Japiassú, Arthur Ayres Neto, and Rosemary Vieira. "MORPHOLOGICAL AND SEDIMENTARY CHARACTERIZATION THROUGH ANALYSIS OF MULTIBEAM DATA AT DECEPTION ISLAND, ANTARCTIC." Revista Brasileira de Geofísica 34, no. 2 (2016). http://dx.doi.org/10.22564/rbgf.v34i2.792.

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ABSTRACT. Multibeam sonar systems have transformed the area of underwater geoacoustics and present an important tool for seabed characterization. This work aims to demonstrate the processing and interpretation of multibeam bathymetric data, supported by geological samples collected in the area of Deception Island, South Shetland Islands – Antarctic...Keywords: bathymetry, seabed, marine geology, underwater geoacoustic. RESUMO. Sonares multifeixe têm transformado a área de geoacústica submarina e se apresentado como uma ferramenta importante para a caracterização do fundo marinho...Palavras-cha

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Micallef, Aaron, Sebastian Krastel, and Alessandra Savini. "Submarine geomorphology." Geological Society, London, Memoirs, July 13, 2021, M58–2021–2. http://dx.doi.org/10.1144/m58-2021-2.

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AbstractSubmarine geomorphology underwent significant development in the second half of the twentieth century, largely thanks to advances in technology by the military, navigation and hydrocarbon industry, which were later transferred to the academic and commercial sectors. In this chapter we summarize the development of the key methods used in submarine geomorphology between 1950 and 2000, which include sidescan sonar, multibeam echo sounder, reflection seismology, seafloor sampling and marine robotic systems. We then highlight the progress in our understanding of seafloor processes and landf

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Pickrill, Richard A., and David J. W. Piper. "MARINE GEOLOGY IN ATLANTIC CANADA - A GOVERNMENT PERSPECTIVE." Proceedings of the Nova Scotian Institute of Science (NSIS) 43, no. 2 (2006). http://dx.doi.org/10.15273/pnsis.v43i2.3638.

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The two priorities for government marine geoscience over the next decades are: (1) seabed mapping for ocean management, including safe and sustainable use of natural resources; and (2) societal responses in the coastal zone to natural hazards, global climate change and anthropogenic pressures including environmental degradation. Meeting these priorities will require scientific study of the history of past glaciations; erosion, transport and flocculation processes of sea-floor sediments, particularly of muds; and sediment transport and deposition and their interaction with environmental quality

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