OCEANS 2015 - MTS/IEEE Washington最新文献_第7页

Experimentation for development of underwater acoustic video camera: In experiment dock 水声摄像机研制实验:实验船坞

OCEANS 2015 - MTS/IEEE Washington Pub Date : 2015-10-01 DOI: 10.23919/OCEANS.2015.7401944

K. Abukawa, S. Matsumoto, T. Hirabayashi, K. Shirai, Tomoo Sato, Hiroshi Iida, M. Nanri, M. Yoshie, K. Katakura, Koji Takahashi

引用次数: 3

Feasibility of low-power one-way travel-time inverted ultra-short baseline navigation 低功率单程行程时倒立超短基线导航的可行性

OCEANS 2015 - MTS/IEEE Washington Pub Date : 2015-10-01 DOI: 10.23919/OCEANS.2015.7401992

M. Jakuba, J. Kinsey, J. Partan, Sarah E. Webster

{"title":"Feasibility of low-power one-way travel-time inverted ultra-short baseline navigation","authors":"M. Jakuba, J. Kinsey, J. Partan, Sarah E. Webster","doi":"10.23919/OCEANS.2015.7401992","DOIUrl":"https://doi.org/10.23919/OCEANS.2015.7401992","url":null,"abstract":"Recent and underway development efforts promise to deliver long endurance and deep-diving autonomous underwater vehicles with the potential to persistently observe the deep (6000 m) ocean interior and sea floor over time scales of months to years. These assets and their shallow-diving (<;1000 m) predecessors navigate primarily by dead-reckoning between surfacing for GPS fixes, a paradigm that precludes their use in missions where science objectives call for precise navigation deep in the water column or near the deep sea floor. Coupled with a single autonomous surface vessel, one-way travel time inverted ultrashort baseline positioning (OWTT-iUSBL) offers a compelling, but presently unrealized, alternative to infrastructure-intensive external acoustic aiding. Such systems could provide navigation aiding to multiple underwater vehicles while retaining a level of autonomy and endurance for the system as a whole comparable to that of a solitary vehicle. While the concept of OWTT-iUSBL is not new, we argue that the maturity of acoustic modem technology combined with the emergence of very low-power precision timing and attitude sensors will make it possible to deploy OWTT-iUSBL systems on low-power underwater vehicles in the near term. This paper presents two analyses in support of this conjecture. First, we discuss the factors that govern the achievable accuracy of OWTT-iUSBL navigation and present single-fix error budgets for specific system configurations using representative commercially-available components. Second, we consider the impact of a specific low-power configuration on the endurance of a deepprofiling autonomous underwater glider. Our analyses suggest that a practically realizable OWTT-iUSBL system could provide navigational accuracy 1-2 orders of magnitude superior to that presently achievable using periodic ascents to acquire global positioning system (GPS), and, for sufficiently deep deployments, actually yield more near-bottom data despite reducing overall vehicle endurance.","PeriodicalId":403976,"journal":{"name":"OCEANS 2015 - MTS/IEEE Washington","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129438431","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: 23

Extrinsic calibration of an RGB camera to a 3D imaging sonar RGB相机对三维成像声纳的外部标定

OCEANS 2015 - MTS/IEEE Washington Pub Date : 2015-10-01 DOI: 10.23919/OCEANS.2015.7404377

A. Marburg, A. Stewart

引用次数: 4

Medium Access Control mechanism for Multi-hop Underwater Acoustic Networks utilizing time reversal 基于时间反转的多跳水声网络介质访问控制机制

OCEANS 2015 - MTS/IEEE Washington Pub Date : 2015-10-01 DOI: 10.23919/OCEANS.2015.7404366

Ruiqin Zhao, Xiaohong Shen, Weigang Bai, Zhe Jiang, Yong Wang, Haiyan Wang

{"title":"Medium Access Control mechanism for Multi-hop Underwater Acoustic Networks utilizing time reversal","authors":"Ruiqin Zhao, Xiaohong Shen, Weigang Bai, Zhe Jiang, Yong Wang, Haiyan Wang","doi":"10.23919/OCEANS.2015.7404366","DOIUrl":"https://doi.org/10.23919/OCEANS.2015.7404366","url":null,"abstract":"In Multi-hop Underwater Acoustic Networks (MUANs), Medium Access Control (MAC) protocol has attracted strong attentions due to its potentially large impact to the overall network performance. The main task of a MAC protocol is to prevent simultaneous transmissions or resolve transmission collisions of data packets while providing energy efficiency, low channel access delays and fairness among the nodes in a network. Unlike terrestrial networks, which mainly rely on radio waves for communications, MUANs utilize acoustic waves, which pose a new research challenge in the design of MAC protocols. In this paper, we propose a new MAC strategy for MUANs utilizing time reversal (TR), to overcome the medium access control problems encountered under the environment of underwater acoustic networks. Utilizing the complex spatial varied features of underwater acoustic channel, time-reversal (TR) process could concentrate signal energy in both the spatial and temporal domains, a useful property for networks in an environment with significant multipath. Utilizing time reversal (TR), the proposed MAC strategy results in a significant improved spatial multiplexing ratio of the shared wireless channel, and resolves collision of simultaneous transmissions in multi-hop underwater acoustic networks.","PeriodicalId":403976,"journal":{"name":"OCEANS 2015 - MTS/IEEE Washington","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129314459","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

Trajectory controller for Autonomous Surface Vehicle under sea waves 海浪下自主水面航行器的轨迹控制器

OCEANS 2015 - MTS/IEEE Washington Pub Date : 2015-10-01 DOI: 10.23919/OCEANS.2015.7401960

B. Braginsky, H. Guterman

引用次数: 4

NX-2G: Autonomous BBOBS-NX for a highly mobile broadband seismic and tilt observation at the seafloor NX-2G:用于海底高移动宽带地震和倾斜观测的自主bbbs - nx

OCEANS 2015 - MTS/IEEE Washington Pub Date : 2015-10-01 DOI: 10.23919/OCEANS.2015.7401857

H. Shiobara, M. Shinohara, H. Sugioka, A. Ito

{"title":"NX-2G: Autonomous BBOBS-NX for a highly mobile broadband seismic and tilt observation at the seafloor","authors":"H. Shiobara, M. Shinohara, H. Sugioka, A. Ito","doi":"10.23919/OCEANS.2015.7401857","DOIUrl":"https://doi.org/10.23919/OCEANS.2015.7401857","url":null,"abstract":"Developments of the broadband ocean bottom seismometer (BBOBS) and its new generation system (BBOBSNX) have been a base to establish the ocean floor broadband seismology, since 1999. Our BBOBS and BBOBS-NX data is adequate for modern broadband seismic analyses to study the deep Earth interior. Especially, the BBOBS-NX can offer the low noise horizontal data comparable to land seismic stations in periods longer than 10 s. As a variation of the BBOBS-NX, the BBOBST-NX has been developed too, which enables the additional tilt measurement at the seafloor with the broadband seismic data. Their high performance can be a breakthrough to realize the geodetic observation network at the seafloor for slow slip event observations for example. A defect of the current BBOBS-NX system is necessity of the submersible vehicle in its operation of the deployment and the recovery. This condition limits possibilities of observations, compared to observations by the BBOBS that can be operated even on a small fishery boat. The development of the autonomous BBOBS-NX, NX-2G, is really required to elucidate the Earth interior below wide oceanic area in the future.","PeriodicalId":403976,"journal":{"name":"OCEANS 2015 - MTS/IEEE Washington","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127310779","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: 0

When underwater imagery analysis meets deep learning: A solution at the age of big visual data 当水下图像分析遇到深度学习:大视觉数据时代的解决方案

OCEANS 2015 - MTS/IEEE Washington Pub Date : 2015-10-01 DOI: 10.23919/OCEANS.2015.7404463

Hongwei Qin, Xiu Li, Zhixiong Yang, Min Shang

引用次数: 33

Model comparison for transatlantic ocean glider flight: Student analysis of modern circumnavigation 跨大西洋滑翔机飞行模式比较:学生对现代环球航行的分析

OCEANS 2015 - MTS/IEEE Washington Pub Date : 2015-10-01 DOI: 10.23919/OCEANS.2015.7404505

Andrenette Morrison, L. Ramsay, Martín R. Arroyo, Kelsey M Ashbrook, Olivia Czerewko, Stephanie Lee, Caleb Lintz, E. Payne, J. Kohut, S. Glenn, O. Schofield, T. Miles

{"title":"Model comparison for transatlantic ocean glider flight: Student analysis of modern circumnavigation","authors":"Andrenette Morrison, L. Ramsay, Martín R. Arroyo, Kelsey M Ashbrook, Olivia Czerewko, Stephanie Lee, Caleb Lintz, E. Payne, J. Kohut, S. Glenn, O. Schofield, T. Miles","doi":"10.23919/OCEANS.2015.7404505","DOIUrl":"https://doi.org/10.23919/OCEANS.2015.7404505","url":null,"abstract":"Oceanic forecast models are imperative to understand the Earth's ocean. Current oceanic forecasts assimilate satellite sea surface height and temperature data along with temperature and salinity profiles from Argo networks of over 3000 drifters. Even though assimilation of these datasets are reliable, they have limitations because areas that provide critical data to ocean forecast models are often under sampled. Autonomous Underwater Gliders (AUGs) can be used as a solution to reduce under sampled regions of the ocean. Over the last decade, AUGs have successfully been used to carry out regional deployments to conduct scientific expeditions throughout the Earth's Ocean. Through the Challenger Glider Mission, coordinated flights covering 128,000 kilometers are planned around the five ocean basins. A range of international institutions and agencies can participate in the mission using interactive tools developed by the U.S. Integrated Ocean Observing System (IOOS) and the education outreach tools of the U.S. National Science Foundation's (NSF) Ocean Observing Initiative (OOI). These interactive tools are programmed to display real time glider data with interactive browser-based access, enabling student participation in global ocean exploration and predictive skill experiments. During the summer of 2015, student research teams participated in the second leg of the South Atlantic Challenger Glider Mission (named RU29). The aim is to show the usefulness of RU29's in situ datasets in ocean forecasting by comparing salinity, temperature, and sea surface current observations to the predictive readings of ocean models (RTOFS, MyOcean) and data generated by the Argo Float program. The students' involvement contributes to the assessment of current scientific and oceanographic models, courtesy of the Challenger Glider Mission.","PeriodicalId":403976,"journal":{"name":"OCEANS 2015 - MTS/IEEE Washington","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127163396","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: 0

Communicating oil spill science 传播溢油科学

OCEANS 2015 - MTS/IEEE Washington Pub Date : 2015-10-01 DOI: 10.23919/OCEANS.2015.7404573

S. Gilbert, B. Prueitt, L. Hotaling, T. Greely, S. Murawski, D. Hollander

引用次数: 0

A joint linear-analog network coding based protocol for data transfer in underwater acoustic networks 一种基于联合线性模拟网络编码的水声网络数据传输协议

OCEANS 2015 - MTS/IEEE Washington Pub Date : 2015-10-01 DOI: 10.23919/OCEANS.2015.7404378

Xiaobo Zhao, Xiaohong Shen, Haiyan Wang, Weigang Bai, Ruiqin Zhao

引用次数: 0