OCEANS 2016 - Shanghai最新文献_第2页

AUV-aided communication method for underwater mobile sensor network 水下移动传感器网络的auv辅助通信方法

OCEANS 2016 - Shanghai Pub Date : 2016-04-10 DOI: 10.1109/OCEANSAP.2016.7485345

Wang Zhuo, Guo Hongmei, Jiang Longjie, Feng Xiaoning

{"title":"AUV-aided communication method for underwater mobile sensor network","authors":"Wang Zhuo, Guo Hongmei, Jiang Longjie, Feng Xiaoning","doi":"10.1109/OCEANSAP.2016.7485345","DOIUrl":"https://doi.org/10.1109/OCEANSAP.2016.7485345","url":null,"abstract":"Underwater Wireless Sensor Networks (UWSNs) are getting growing interest because of wide-range applications. However, the underwater acoustic communication technology is constrained by the nodes' continuous movement, limited communication bandwidth and node energy, which bring great challenges to UWSNs. In order to handle these challenges and to achieve an efficient energy consumption, many researches have been carried. A significant problem in Underwater Wireless Sensor Networks (UWSNs) is the difficulty of energy limit. This paper proposes an AUV-aided acoustic communication protocol, namely AA-RP (AUV-Aided Routing Method Integrated Path Planning), which integrates the AUV's dynamic path planning algorithms into the routing protocol. This integrated communication method relies on two phases: AAR (AUV-Aided Network Routing) and RAPP (Routing Aided Path Planning). AA-RP utilizes the cooperation of multi-tasks to reduce energy consumption for network and avoids hot spot and zone problem with a dynamic GN (Gateway Node) schemes. In order to evaluate the performance of the proposed method, we make the simulation with NS3, which contains a UAN (Underwater Acoustic Network) module. The simulation results show that the method can reduce the network energy consumption with a good delivery ratio.","PeriodicalId":382688,"journal":{"name":"OCEANS 2016 - Shanghai","volume":"19 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":"123520898","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

Sounding data quality assessment method and result of high-resolution bathymetric sidescan sonar system 高分辨率测深边扫声纳系统测深数据质量评价方法与结果

OCEANS 2016 - Shanghai Pub Date : 2016-04-10 DOI: 10.1109/OCEANSAP.2016.7485446

Xiaodong Liu, Shuwen Wang, Dongsheng Zhang, Jinliang Cao, Hongyi Wang

引用次数: 3

Single scattering impulse response modeling of underwater wireless optical channels 水下无线光信道单散射脉冲响应建模

OCEANS 2016 - Shanghai Pub Date : 2016-04-10 DOI: 10.1109/OCEANSAP.2016.7485482

Yiqing Zhou, Yuhan Dong

引用次数: 4

Dense multiple-target tracking based on dual frequency identification sonar (DIDSON) image 基于双频识别声呐(DIDSON)图像的密集多目标跟踪

OCEANS 2016 - Shanghai Pub Date : 2016-04-10 DOI: 10.1109/OCEANSAP.2016.7485661

Danxiang Jing, Jun Han, Guanyu Wang, Xiaoding Wang, Jianyong Wu, Guihui Chen

引用次数: 5

Improving maritime technology: A cooperation technology perspective on cooperative artifacts 改进海事技术:合作工件的合作技术视角

OCEANS 2016 - Shanghai Pub Date : 2016-04-10 DOI: 10.1109/OCEANSAP.2016.7485586

Yushan Pan

{"title":"Improving maritime technology: A cooperation technology perspective on cooperative artifacts","authors":"Yushan Pan","doi":"10.1109/OCEANSAP.2016.7485586","DOIUrl":"https://doi.org/10.1109/OCEANSAP.2016.7485586","url":null,"abstract":"This paper presents a cooperation technology perspective on cooperative artifacts within cooperative work environments in the maritime domain. The issue of cooperation technology can be seen in the design of artifacts, as much cooperation technology has been disrupted rather than supported by engineering design, an example of which is maritime technology. Maritime operation systems narrowly focus on \"problem solving\" functionalities. From the perspective of computer-supported cooperative work (CSCW), these system \"problems\" are not so much problems of function as they are problems raised from interactions among human operators, cooperative artifacts, and computer systems. Systems developers sometimes overlook cooperative works supported by cooperative artifacts in maritime operations. This article aims to introduce cooperation technology into the maritime technology community by presenting two ways to improve maritime technology. Systems developers from the engineering field and CSCW designers need to explore ways to help human operators who practice maritime technology in situ with safety and commitment to good user experience. It is important that systems developers keep an open mind and accept new knowledge from other research fields to balance the relationship between technology and intimacy in human interactions in maritime technology.","PeriodicalId":382688,"journal":{"name":"OCEANS 2016 - Shanghai","volume":"49 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":"123009678","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

On BER performance of underwater wireless optical MISO links under weak turbulence 弱湍流条件下水下无线MISO链路误码率性能研究

OCEANS 2016 - Shanghai Pub Date : 2016-04-10 DOI: 10.1109/OCEANSAP.2016.7485506

Yuhan Dong, Jinxing Liu

引用次数: 37

On capacity of underwater optical wireless links under weak oceanic turbulence 弱海洋湍流条件下水下光无线链路容量研究

OCEANS 2016 - Shanghai Pub Date : 2016-04-10 DOI: 10.1109/OCEANSAP.2016.7485523

Jinxing Liu, Yuhan Dong

引用次数: 23

Image enhancement and compression of deep-sea floor image for acoustic transmission 深海海底声传输图像增强与压缩

OCEANS 2016 - Shanghai Pub Date : 2016-04-10 DOI: 10.1109/OCEANSAP.2016.7485453

Jonghyun Ahn, S. Yasukawa, T. Sonoda, Yuya Nishida, K. Ishii, T. Ura

{"title":"Image enhancement and compression of deep-sea floor image for acoustic transmission","authors":"Jonghyun Ahn, S. Yasukawa, T. Sonoda, Yuya Nishida, K. Ishii, T. Ura","doi":"10.1109/OCEANSAP.2016.7485453","DOIUrl":"https://doi.org/10.1109/OCEANSAP.2016.7485453","url":null,"abstract":"One of the important missions of AUVs is to take deep-sea images and make maps of sea floor to contribute the understanding of deep-sea biology and geology. The sea floor images include lots of information such as distributions of creatures, minerals and so on. The next mission expected for AUVs is to bring the samples back concurrently with taking interesting photos, autonomously. However, this mission is difficult to perform fully-autonomous without the knowledge of biologists or geologists, as the AUVs don't know which objects are interesting or important for them and it takes long time to teach AUVs all features of target samples. It is necessary for AUVs to work semi-autonomously by collaborating with scientists on the ship and getting commands to indicate the important samples. In this research, we proposed an image enhancement and compression method for acoustic transmission with limited communication density. The proposed method enhances the effect of light attenuation in the deep-sea floor image and reduces the image depth from 24-bit of original images to 4-bit. The method is evaluated by transmission experiment using a new AUV \"TUNA-SAND 2\".","PeriodicalId":382688,"journal":{"name":"OCEANS 2016 - Shanghai","volume":"17 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":"128233250","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: 8

Underwater image sharpness assessment based on selective attenuation of color in the water 基于水中颜色选择性衰减的水下图像清晰度评估

OCEANS 2016 - Shanghai Pub Date : 2016-04-10 DOI: 10.1109/OCEANSAP.2016.7485695

Zongying Li, Zhaorui Gu, Haiyong Zheng, Bing Zheng, Jingpeng Liu

引用次数: 7

Performance analysis of capon matched-field algorithm in spatially correlated noise field capon匹配场算法在空间相关噪声场中的性能分析

OCEANS 2016 - Shanghai Pub Date : 2016-04-10 DOI: 10.1109/OCEANSAP.2016.7485688

Z. Xiao, Wei Xia, Zibin Yu

{"title":"Performance analysis of capon matched-field algorithm in spatially correlated noise field","authors":"Z. Xiao, Wei Xia, Zibin Yu","doi":"10.1109/OCEANSAP.2016.7485688","DOIUrl":"https://doi.org/10.1109/OCEANSAP.2016.7485688","url":null,"abstract":"Matched field processing (MFP) for passive source localization is a comprehensive application of signal processing techniques in extremely complex environment. In essence, it is a parameter estimation processor by exploiting full wave modeling of acoustic waveguide propagation. Typical MFP performance demonstrates a threshold behavior, that is, below some signal-to-noise ratio (SNR), the mean-square error (MSE) increases dramatically. In this paper, we develop approaches to study MFP performance of the data-based Capon algorithm in the presence of spatially correlated noise. Especially, the effect of surface-generated noise (multi-rank) on MFP performance is interesting, different from that of point interference (one-rank). The Capon algorithm has a well-know high resolution. However, it cannot achieve the Cramer-Rao bound (CRB), because of the biased statistic and the SNR decrease due to sample covariance matrix. In this thesis, we modify the CRB to redefine the asymptotic local bound of the Capon algorithm here, and develop a so-called method of interval errors (MIE) to characterize the corresponding global performance bound. Performance analysis of capon MFP for source localization is implemented in a realistic shallow water environment. Simulation results suggest that, 1) in the presence of surface-generated noise or a point interference, both the threshold SNRs increase a lot, compared with the only white noise case; 2) surface-generated noise is a stronger destroyer of MFP performance than both white noise and a point interference. Nearly the same MFP performance is caused by much higher signal-to-surface-generated noise ratio (SSNR) than signal-to-interference ratio (SIR). 3) MSE at high SNR deceases in a slower pace with surface-generated noise than the case with white noise or a point interference.","PeriodicalId":382688,"journal":{"name":"OCEANS 2016 - Shanghai","volume":"16 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":"128629311","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