2013 IEEE International Underwater Technology Symposium (UT)最新文献

High productivity multi-sensor seabed Mapping Sonar for Marine Mineral Resources Exploration 用于海洋矿产资源勘探的高生产率多传感器海底测绘声纳

2013 IEEE International Underwater Technology Symposium (UT) Pub Date : 2013-07-24 DOI: 10.1109/RIOACOUSTICS.2013.6684011

M. Rioblanc

{"title":"High productivity multi-sensor seabed Mapping Sonar for Marine Mineral Resources Exploration","authors":"M. Rioblanc","doi":"10.1109/RIOACOUSTICS.2013.6684011","DOIUrl":"https://doi.org/10.1109/RIOACOUSTICS.2013.6684011","url":null,"abstract":"Marine Mineral Resources Exploration is an emerging activity requiring suitable equipment that will deliver on a timely manner both geo-referenced seabed maps and sub-bottom profiles. The race for deep sea mining has globally started while costs involved have to be minimized at all stages from exploration to exploitation. Building on its 20-year long experience in designing and manufacturing active transducers and passive sensors, the Sonar Systems Division of iXBlue is also at the cutting edge of the synthetic aperture sonar (SAS) development while mastering the long range underwater acoustic communication transducer technology (used for instance by JAMSTEC) and the Wide-Band, Flat Spectrum Sub-Bottom Profiler Transducers. The SAMS is a modular Synthetic Aperture Mapping Sonar product-line delivering real-time geo-referenced maps at a high productivity rate (>133km/day). Several solutions with diverse resolutions and ranges are available while host platforms are multiple (Towed Fish, AUV). The SAMS-DT6000 in particular will be presented as it has been especially designed for Marine Mineral Resource Exploration as deep as -6000m. This paper describes more specifically the time synchronization and references to manage accurate data positioning.","PeriodicalId":354995,"journal":{"name":"2013 IEEE International Underwater Technology Symposium (UT)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122006403","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Field experimental results of path re-planning method for an AUV to visualize complicated surface in 3D 水下机器人复杂曲面三维可视化路径重新规划方法的现场实验结果

2013 IEEE International Underwater Technology Symposium (UT) Pub Date : 2013-05-27 DOI: 10.1109/UT.2013.6519892

Y. Sato, T. Maki, A. Kume, T. Matsuda, T. Sakamaki, T. Ura

引用次数: 0

Developments in sonar technologies and their applications 声纳技术的发展及其应用

2013 IEEE International Underwater Technology Symposium (UT) Pub Date : 2013-05-27 DOI: 10.1109/UT.2013.6519839

L. Bjørnø

引用次数: 7

Citizen science and marine community monitoring by video-cabled observatories: The OBSEA Citizen Science project 通过视频电缆观测站进行公民科学和海洋社区监测:OBSEA公民科学项目

2013 IEEE International Underwater Technology Symposium (UT) Pub Date : 2013-03-05 DOI: 10.1109/UT.2013.6519842

J. del Río, J. Aguzzi, A. Hidalgo, I. Bghiel, A. Manuel, V. Sbragaglia, F. Sardá

引用次数: 3

Event detection of underwater acoustic data from MACHO hydrophone MACHO水听器水声数据的事件检测

2013 IEEE International Underwater Technology Symposium (UT) Pub Date : 2013-03-05 DOI: 10.1109/UT.2013.6519887

Yin-Ying Fang, Meng-Chu Liu, Shih-En Chou, Chi-Fang Chen, Chien-Kang Huang

引用次数: 3

Linear and bilinear approximations of sound speed profiles in GPS/Acoustic seafloor geodesy GPS/声学海底大地测量中声速曲线的线性和双线性近似

2013 IEEE International Underwater Technology Symposium (UT) Pub Date : 2013-03-05 DOI: 10.1109/UT.2013.6519894

Hsin-Hung Chen, Chau-Chang Wang, Wen-Ning Chuang, Bi-Hua Lin, Kun-Hung Li, Jianfeng Su

{"title":"Linear and bilinear approximations of sound speed profiles in GPS/Acoustic seafloor geodesy","authors":"Hsin-Hung Chen, Chau-Chang Wang, Wen-Ning Chuang, Bi-Hua Lin, Kun-Hung Li, Jianfeng Su","doi":"10.1109/UT.2013.6519894","DOIUrl":"https://doi.org/10.1109/UT.2013.6519894","url":null,"abstract":"To reduce the effect of sound speed variation on the precision of GPS/Acoustic positioning, we present two synthetic models, the linear and bilinear profiles, for the approximation of a sound speed profile so that the acoustic travel times with the approximate and the exact profiles are negligibly different. The linear profile is assumed that the sound speed varies linearly as a function of depth, in which the surface sound speed and the gradient of sound speed over the whole depth are the design variables. In the bilinear model, the surface sound speed and the break depth are regarded as known constants, while the two piecewise gradients of the bilinear function are variables needing to be estimated to approximate a sound speed profile. The performance of the two synthetic models are numerically evaluated for the approximation of three types of sound speed profiles which were derived from CTD casts taken at 300, 1000, and 2000 m water depths, respectively. In the bilinear approximation, varying the break depth results in different best fit to a sound speed profile. Therefore, this study investigates the change in error of the best fit due to the change in break depth for the bilinear approximation of the three types of sound speed profiles. The performance of the linear and bilinear approximations to sound speed profiles are further evaluated by the data collected from a field GPS/Acoustic survey. The results demonstrate that the linear and bilinear approximations of sound speed profiles can effectively reduce the effect of sound speed variation on GPS/Acoustic positioning.","PeriodicalId":354995,"journal":{"name":"2013 IEEE International Underwater Technology Symposium (UT)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116459406","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Preliminary analysis of background noise distribution in the ocean experiment 2010 of Ambient Noise Imaging 环境噪声成像2010海洋实验中背景噪声分布的初步分析

2013 IEEE International Underwater Technology Symposium (UT) Pub Date : 2013-03-05 DOI: 10.1109/UT.2013.6519884

K. Mori, H. Ogasawara, T. Nakamura, T. Tsuchiya, N. Endoh

{"title":"Preliminary analysis of background noise distribution in the ocean experiment 2010 of Ambient Noise Imaging","authors":"K. Mori, H. Ogasawara, T. Nakamura, T. Tsuchiya, N. Endoh","doi":"10.1109/UT.2013.6519884","DOIUrl":"https://doi.org/10.1109/UT.2013.6519884","url":null,"abstract":"We previously designed and made an aspherical lens with an aperture diameter of 1.0 m for Ambient Noise Imaging (ANI). The prototype system was developed by mounting the hydrophone array on the image surface of this lens. In the ocean experiment 2010 of ANI, this system was deployed through the barge OKI SEATEC II moored in Uchiura Bay on November 8-13, 2010. First, we measured the directivity of this lens using a pinger sound of 120 kHz. It was verified that the prototype ANI system with this lens realized the directional resolution with a beam width of 1 degree at the center frequency of 120 kHz over the field of view from -7 to +7 degrees. In the data analysis results of the silent target detection trials, we successfully detected target scatterings using only ocean natural background noise, which was generated mainly by snapping shrimps. In this study, background noise distribution was observed at the same time as this experiment was conducted. We used a pair of tetrahedral arrays in this observation. Here, four hydrophones were mounted at distances of 1 m on each of two arrays which themselves were located about 10 m apart and about 5 m below the surface. The noise source positions were estimated by the arrival time differences of transient noises received by hydrophone arrays. In the preliminary results for the spatial densities of noise sources, the noise sources were spread when the noises arrived from the sea bottom. Some of the sources were around the sea bottom just under the barge, and other sources were around the sea bottom just under fish preserves. The sources were coincident with the barge when the noises arrived from the sea surface. Considering the directivity of the target scattering, it was suggested that the locations of noise sources, where the ANI system can capture target scatterings having high intensities, were at the barge around the sea surface.","PeriodicalId":354995,"journal":{"name":"2013 IEEE International Underwater Technology Symposium (UT)","volume":"118 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122613138","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Development of an automated cable-laying system for DONET construction DONET施工自动化电缆敷设系统的研制

2013 IEEE International Underwater Technology Symposium (UT) Pub Date : 2013-03-05 DOI: 10.1109/UT.2013.6519810

Jin-Kyu Choi, S. Nishida, T. Yokobiki, K. Kawaguchi

{"title":"Development of an automated cable-laying system for DONET construction","authors":"Jin-Kyu Choi, S. Nishida, T. Yokobiki, K. Kawaguchi","doi":"10.1109/UT.2013.6519810","DOIUrl":"https://doi.org/10.1109/UT.2013.6519810","url":null,"abstract":"This paper describes an automated cable-laying system that can automatically pay out a submarine cable on the seafloor while keeping balance with the ground speed. We have installed DONET (Dense Oceanfloor Network System for Earthquakes and Tsunamis) at Kumanonada and a ROV (Remotely Operated Vehicle) was successfully used to lay the cables which connect observatories to the nodes of the DONET. However, such a cable-laying work was regarded as one of the hardest works since it takes approximately 10 hours (about 10km distance) and is manually carried out by a ROV operator(s). The automated cable-laying system can contribute to reduce the physical and mental burdens on the ROV operator and speed up the construction of DONET2 (the second phase of DONET). In this paper, the components and cable-laying control strategies are described and some experimental results are presented. In addition, we report on the first mission to connect the borehole observatory C0002 to the Node D of the DONET. This achievement has made it possible to receive the data of the borehole observatory in real-time. The paid out cable is 8470m and the travelled distance is approximately 8000m.","PeriodicalId":354995,"journal":{"name":"2013 IEEE International Underwater Technology Symposium (UT)","volume":"90 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116731373","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Towards AUV-based iceberg profiling and gouging survey in arctic sea: The first Japanese under-ice AUV deployment in Okhotsk Sea 迈向基于AUV的冰山剖面和北极海的挖空调查:日本首次在鄂霍次克海部署冰下AUV

2013 IEEE International Underwater Technology Symposium (UT) Pub Date : 2013-03-05 DOI: 10.1109/UT.2013.6519870

Kangsoo Kim, T. Ura, K. Nagahashi, T. Asanuma, T. Matsuzawa, K. Nakane, T. Obata, H. Koyama, Y. Ooyabu, R. Nagata

{"title":"Towards AUV-based iceberg profiling and gouging survey in arctic sea: The first Japanese under-ice AUV deployment in Okhotsk Sea","authors":"Kangsoo Kim, T. Ura, K. Nagahashi, T. Asanuma, T. Matsuzawa, K. Nakane, T. Obata, H. Koyama, Y. Ooyabu, R. Nagata","doi":"10.1109/UT.2013.6519870","DOIUrl":"https://doi.org/10.1109/UT.2013.6519870","url":null,"abstract":"In this paper, we present an AUV-based strategy for iceberg profiling and seabed gouge survey, and report the results of under-ice AUV dives conducted in Okhotsk Sea. In our strategy, a cruising AUV equipped with multiple MBESs and optical cameras achieves iceberg profiling and seabed gouge survey simultaneously, passing beneath the bottom of an iceberg. Since our AUV-based iceberg profiling and gouge survey are highly challenging missions carrying a higher safety risk, as a preliminary skirmish towards the Arctic sea mission, we conducted under-ice survey dives in ice-covered Okhotsk Sea. During these survey dives conducted in March 2012, we deployed an AUV \"Aqua-Explorer 2000a\" for profiling the bottoms of drifting ice-floes in an upward-looking manner. Aqua-Explorer 2000a is a cruising AUV developed and owned by Institute of Industrial Science, the University of Tokyo. Two dives were completed successfully as the under-ice survey mission. After finishing the dives, we could profile the ice-floes by using highresolution subsurface topography obtained by an MBES, and generate the photo mosaic of ice-floes along the vehicle's tracks. The dives are successful first steps towards AUV-based fully automatic iceberg profiling and gouge survey in Arctic sea.","PeriodicalId":354995,"journal":{"name":"2013 IEEE International Underwater Technology Symposium (UT)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129584607","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Leakage and oil spill detection utilizing active acoustic systems 利用主动声学系统进行泄漏和溢油检测

2013 IEEE International Underwater Technology Symposium (UT) Pub Date : 2013-03-05 DOI: 10.1109/UT.2013.6519891

P. Eriksen

{"title":"Leakage and oil spill detection utilizing active acoustic systems","authors":"P. Eriksen","doi":"10.1109/UT.2013.6519891","DOIUrl":"https://doi.org/10.1109/UT.2013.6519891","url":null,"abstract":"Modern active acoustic multibeam sonars have the last 1.5 years achieved a major breakthrough in terms of performance, physical size, power consumption, uplink flexibility, processing and not least price. This now allows the tool to be used in a much wider context during subsea hydro carbonate (Oil/gas) detection, quantification and visualization. As the new generation sonar is so flexible it will easily integrate to any platform, AUV, ROV, Gliders, permanent installation, ship borne etc. The multibeam sonar is capable of monitoring larger areas and perform various tasks in an oil exploration setting. Active acoustics can be used for various applications such as: Reservoir fault monitoring, a good example of such an event is the Frade field spill November last year. Natural seeps; this is instrumental to monitor during exploration but also during operation of the field. Leakage detection; on subsea infra structure, naturally it is of great concern to have real time detection of leakages. Oil spill response; detection of hydro carbonate suspended in the water column as well as under the ice, and on the seafloor. Dispersant mixing efficiency; real time 3D monitoring of the mixing process during application of dispersant. A major events; such as the deep water horizon it is important to be able to monitor hydro carbonate in the water column. Active acoustic data will be presented from several trials from various parts of the world, examples hereof is California natural seeps, Brazil leakage detection, Norway plume mixing phenomenon and more, test data presented here will be a mix of real offshore data as well as laboratory based data sets.","PeriodicalId":354995,"journal":{"name":"2013 IEEE International Underwater Technology Symposium (UT)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130231428","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 14