OCEANS 2016 - Shanghai最新文献_第8页

Synthetic lines for marine and other applications: Rope design, selection and best practice 船用和其他用途的合成绳:绳索的设计、选择和最佳实践

OCEANS 2016 - Shanghai Pub Date : 2016-04-10 DOI: 10.1109/OCEANSAP.2016.7485356

R. Chou, Kris Volpenhein, Greg Mozsgai

{"title":"Synthetic lines for marine and other applications: Rope design, selection and best practice","authors":"R. Chou, Kris Volpenhein, Greg Mozsgai","doi":"10.1109/OCEANSAP.2016.7485356","DOIUrl":"https://doi.org/10.1109/OCEANSAP.2016.7485356","url":null,"abstract":"In order to properly design and select a rope, one needs to understand the key limitations and factors for a specific application. Some of these factors, such as cost, rope strength, elastic elongation, size, and weight, are universal rope parameters. Some other factors are more application-specific such as tensile fatigue, bending fatigue, abrasion resistance, spooling, surface characteristics and stiffness. These factors are all functions of material selection, rope construction, and product fabrication. In addition to proper design and selection of the rope, past field experiences also showed the importance of best practice to extend the service life of the synthetic lines. Through both looking into individual cases and viewing the collective picture as a whole, we identified critical factors in rope design and selection for safe operation. Specific topics for in-depth discussion of some case studies also include assignable causes for cases with poor performance, jacketed vs. non-jacketed rope, material consideration, residual strength of used ropes, selection of accessories, and hardware options with best practice recommendation.","PeriodicalId":382688,"journal":{"name":"OCEANS 2016 - Shanghai","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125393413","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

Fast gap filling of the coastal ocean surface current in the seas around Taiwan 台湾周边海域近岸洋面流的快速填隙

OCEANS 2016 - Shanghai Pub Date : 2016-04-10 DOI: 10.1109/OCEANSAP.2016.7485427

E. Fredj, H. Roarty, J. Kohut, Jian-Wu Lai

引用次数: 3

Research on the fault diagnosis methods for UUV utilize multi-sensor information fusion technology 利用多传感器信息融合技术研究无人潜航器故障诊断方法

OCEANS 2016 - Shanghai Pub Date : 2016-04-10 DOI: 10.1109/OCEANSAP.2016.7485633

Yang Yu, Tianyi Wang, Shangzhuo Zhang

引用次数: 1

Underwater image feature extraction and matching based on visual saliency detection 基于视觉显著性检测的水下图像特征提取与匹配

OCEANS 2016 - Shanghai Pub Date : 2016-04-10 DOI: 10.1109/OCEANSAP.2016.7485370

Lunjuan Zhang, B. He, Yan Song, T. Yan

{"title":"Underwater image feature extraction and matching based on visual saliency detection","authors":"Lunjuan Zhang, B. He, Yan Song, T. Yan","doi":"10.1109/OCEANSAP.2016.7485370","DOIUrl":"https://doi.org/10.1109/OCEANSAP.2016.7485370","url":null,"abstract":"Computer vision has become the tool of two-dimensional image recognition and analysis, which mainly means extracting image features. But the problem of robustness and real-time property in complex scenarios makes feature extraction become a challenging task. Visual attention is an important psychological adjustment mechanism in the process of human visual information management, under the guidance of visual attention, human can quickly select the most important, useful and relevant to the current behavior interested visual information from a number of visual information. This paper applies the visual detection to underwater image feature extraction to work out the robustness problem, which is conducive to a more stable and closer to human cognitive mechanism feature extraction algorithm. In addition, in the process of underwater images pretreatment, we apply dark channel prior to the underwater images preprocessing process to remove haze and enhance the contrast of underwater images. The results also show that the robustness and the property of real-time of feature extraction based on visual saliency detection and dark color image defogging algorithm has been greatly improved.","PeriodicalId":382688,"journal":{"name":"OCEANS 2016 - Shanghai","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121609590","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: 9

A study of the prerequisite for China's marine energy industrialization 中国海洋能源产业化的前提研究

OCEANS 2016 - Shanghai Pub Date : 2016-04-10 DOI: 10.1109/OCEANSAP.2016.7485735

L. Yuxin, W. Haifeng, Chen Libo, Wang Ji, Tang Jiuting

引用次数: 0

Hydrodynamic and vertical motion analysis of an underwater glider 水下滑翔机的水动力和垂直运动分析

OCEANS 2016 - Shanghai Pub Date : 2016-04-10 DOI: 10.1109/OCEANSAP.2016.7485413

Lei Yang, Junjun Cao, Junliang Cao, Baoheng Yao, Zheng Zeng, L. Lian

引用次数: 2

Performance of robust matched-field processing with convex optimization 基于凸优化的鲁棒匹配场处理性能

OCEANS 2016 - Shanghai Pub Date : 2016-04-10 DOI: 10.1109/OCEANSAP.2016.7485628

Kai Zhang, Wen Xu

{"title":"Performance of robust matched-field processing with convex optimization","authors":"Kai Zhang, Wen Xu","doi":"10.1109/OCEANSAP.2016.7485628","DOIUrl":"https://doi.org/10.1109/OCEANSAP.2016.7485628","url":null,"abstract":"Matched-field processing (MFP) is an underwater acoustic signal processing method for passive source localization. It works by matching the measured field with the full-field solution for sound wave propagation in an oceanic waveguide. The popular Minimum Variance Distortionless Response (MV-DR) algorithm is known to be highly sensitive to environmental mismatch, which is one of the main obstacles to the application of MFP in the real ocean. A robust version of MVDR using convex optimization was first proposed in plane wave beamforming to solve the signal mismatch problem and then generalized to the environmental mismatch case in MFP. In this paper, we further investigate this robust MFP algorithm by carrying out numerical implementations in a shallow-water oceanic environment. The results show that this method attains a certain degree of robustness under circumstances of modest mismatch while maintaining the sidelobe suppression capability. Moreover, the robustness level grows when a relatively larger uncertainty factor is chosen in the algorithm while incurring a higher risk of solution non-existence to the convex problem. However, the robust MFP fails in the case of severe environmental mismatch when the peak in the signal ambiguity plane deviates far from the actual source location. The less effectiveness is found to be attributed to selection of the candidate set of steering vectors, which shall be improved in future efforts.","PeriodicalId":382688,"journal":{"name":"OCEANS 2016 - Shanghai","volume":"174 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125120168","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

Study of obstacle information processing for unmanned underwater vehicle in unknown ocean environment 未知海洋环境下无人潜航器障碍物信息处理研究

OCEANS 2016 - Shanghai Pub Date : 2016-04-10 DOI: 10.1109/OCEANSAP.2016.7485720

Wei Zhang, Xiufang Wang, Zhicheng Liang, Xixun Sun

引用次数: 1

Research on mooring system under typhoon state 台风状态下系泊系统研究

OCEANS 2016 - Shanghai Pub Date : 2016-04-10 DOI: 10.1109/OCEANSAP.2016.7485693

Wei Li, Renchao Ji, Ting Huang

引用次数: 1

Coordinate control of multi-AUVs under double independent topologies and time delay 双独立拓扑和时滞下多auv的协调控制

OCEANS 2016 - Shanghai Pub Date : 2016-04-10 DOI: 10.1109/OCEANSAP.2016.7485351

Yan Zhe-ping, Liu Yibo, Z. Jiajia, Hao Bing, Liu Xiangling

引用次数: 3