基于知识图谱的舰船图像目标识别算法

知识图谱是一种近年来兴起的多学科技术,利用知识图谱可以进行目标信息的过滤、快速检索等功能,目前知识图谱技术已经获得了广泛的应用。本文利用知识图谱技术研究了舰船图像目标识别算法,主要是结合知识图谱技术对舰船图像数据的协同过滤、融合和处理,改善舰船图像目标特征提取的速度和准确率,后期的对比试验表明,基于知识图谱技术的舰船图像目标识别误差率保持在较低范围。     

基于知识图谱的航海信息个性化推荐应用研究

随着大数据及人工智能的发展,知识图谱以超强关系表达能力、交互探索式分析方式、智能性知识逻辑体系、高速数据调取速度等突出特点在个性化推荐系统中逐步推广应用。本文对基于知识图谱的航海信息个性化推荐系统进行研究,结合船长和船员在航海作业时界面浏览、操控频率等习惯性操作,综合分析航海知识图谱构建技术、航海信息元关联技术、个性化推荐挖掘技术,搭建基于动态热力圈的船流量、基于地理位置的热点航海信息、基于进出港操纵下泊位信息分级、基于位置信息库的船舶动态迁徙的专题推荐功能,实现海上-港内-船上全流程航海信息的“一站式获取、按需推送”个性化推荐服务,极大精简了航海作业流程,提升航海作业信息综合应用的智能化水平。     

合成孔径雷达在舰船目标定位和成像技术的应用研究

合成孔径雷达SAR是一种利用线性跳频信号进行目标探测和识别的雷达技术,具有分辨率高、观测范围广、数据处理能力强等优点,不论在军事领域的目标勘测还是民用领域的海上环境勘测、港口地形勘察等都具有重要的实际应用价值。本文主要研究基于合成孔径雷达技术的舰船目标定位及舰船目标成像技术,系统介绍合成孔径雷达的工作原理,并针对舰船目标雷达信号的分析与处理进行研究。     

舰船信息融合系统中的网络安全态势模型研究

我国领海面积辽阔,海洋资源丰富,为了加强对海洋资源的监控,提高我国海上运输与资源开采的水平,建立有效的海上雷达监控系统和船舶自动识别系统AIS具有重要的战略和商业价值。信息融合技术,特别是传感器信息融合技术是海上监控系统和AIS系统的关键技术,决定了海上监控、舰船识别系统的工作效率和精度。近年来,互联网技术发展迅速,舰船信息融合系统的信息安全性引起了国内外研究人员的重视,特别是军事领域的监控系统信息安全。本文针对舰船信息融合系统的网络安全问题,建立相应的网络安全态势评估模型,并在此基础上对舰船信息融合系统的数据融合进行仿真分析。     

舰船红外图像检索与特征分析中支持向量机技术的应用

舰船的红外图像检测技术有非常重要的作用。在军事领域,精确的舰船红外图像检测可以起到敌方舰船侦察、维护海上领土安全的作用;在民用领域,舰船的红外图像检索与特征分析,有助于海上航线管理和交通管理,从而提高海上运输的效率和安全性。本文针对舰船的红外图像检测技术,系统的介绍了红外成像的原理,基于向量机技术和图像处理技术,研究了舰船的红外图像检索和特性分析,并对某舰船海上红外图像进行了仿真试验。结果表明,基于向量机分类技术的舰船红外图像处理具有良好的效果。     

基于知识图谱下的舰船电子信息协同推荐算法

为进一步提升舰船电子信息推荐算法的精准度,提出基于知识图谱的舰船电子信息协同推荐算法研究。基于知识图谱建立舰船电子信息协同推荐模型,根据模型反映数据建立相邻用户联系,过滤关联近似推荐词条,获得更精准的舰船电子推荐信息。通过对比仿真测试证明,该方法提高了信息推荐的词条数量,提升了推荐效果。     

下一代海上精确导航系统研究与设计

导航定位系统是海上军事领域的重要保障设备,定位精度与可靠性直接关系着整个战争的成败。传统的舰船导航系统相互独立,仅利用导航卫星信号进行定位,海上复杂多变的气候及地形环境往往会导致接收信号的不稳定,定位精度与可靠性已不能满足现代军事系统的性能要求。本文研究舰船组队中的无线Ad hoc网络,通过自组织通信网络传输导航信号,实现整个舰队精确导航,给出网络化组合导航的信息融合算法,最后对算法进行仿真。     

舰船科学技术投稿提示

正《舰船科学技术》以面向广大舰船科技工作者,反映舰船领域最新科技研究成果为宗旨,积极促进舰船领域的学术与科技交流,推动舰船科学技术的发展。本刊选题范围广泛,包括舰船理论研究、舰船高新技术、舰船总体研究、动力设备、武器装备、电子与光学设备、导航设备、自动化设备、机电设备、通信技术、计算机技术、舰船材料、舰船防护、海洋军事、海洋工程、军民两用技术等。为便于统一稿     

投稿提示

正《舰船科学技术》以面向广大舰船科技工作者,反映舰船领域最新科技研究成果为宗旨,积极促进舰船领域的学术与科技交流,推动舰船科学技术的发展。本刊选题范围广泛,包括舰船理论研究、舰船高新技术、舰船总体研究、动力设备、武器装备、电子与光学设备、导航设备、自动化设备、机电设备、通信技术、计算机技术、舰船材料、舰船防护、海洋军事、海洋工程、军民两用技术等。为便于统一稿     

投稿提示

正《舰船科学技术》以面向广大舰船科技工作者,反映舰船领域最新科技研究成果为宗旨,积极促进舰船领域的学术与科技交流,推动舰船科学技术的发展。本刊选题范围广泛,包括舰船理论研究、舰船高新技术、舰船总体研究、动力设备、武器装备、电子与光学设备、导航设备、自动化设备、机电设备、通信技术、计算机技术、舰船材料、舰船防护、海洋军事、海洋工程、军民两用技术等。为便于统一稿     

33rd International Conference on Ocean,Offshore and Arctic Engineering （OMAE2014）

正San Francisco,California,June 8-13,2014.OMAE 2014 is the ideal forum for researchers,engineers,managers,technicians and students from the scientific and industrial communities from around the world to:·meet and present advances in technology and its scientific support;·to exchange ideas and experiences whilst promoting technological progress and its application in industry·to promote international cooperation in ocean,offshore and arctic engineering.In line with the tradition of excellence of previous OMAE conferences,more than 900 technical papers are planned for presentation.Outreach for Engineers Specialty Forum This Specialty Forum is designed for students and professionals who may not be familiar with the Ocean and Offshore industry,as well as those who have just recently specialized in this field.     

The 11th International Conference on Hydrodynamics (ICHD 2014)

正19–24 October 2014 SingaporeCONFERENCE THEMES The overall aim of the ICHD Conference is to provide a forum for participants from around the world to review,discuss and present the latest developments in the broad discipline of hydrodynamics and fluid mechanics.The first International Conference on Hydrodynamics(ICHD)was initiated in 1994 in Wuxi,China.Since then,9 more ICHD conferences were held subsequently in Hong Kong,Seoul,Yokohama,Tainan,Perth,Ischia,Nantes,Shanghai and St Petersburg.Evidently the ICHD conference has become an important event among academics,researchers,engineers and operators,working in the fields closely related to the science and technology of hydrodynamics.The 11th ICHD will be held in Singapore in 2014.     

第十二届深水操作会议和展览会(英文)

正November 4-6,2014Moody Gardens HotelConvention Center/Galveston,TX The Deepwater Operations Conference and Exhibition is celebrating its 12th anniversary this year.This growing event will continue the tradition of excellence in addressing operational challenges involved in developing deepwater resources.We will return to the Moody Gardens Hotel and Convention Center on November 5-7,2014 in Galveston,Texas.     

舰艇反鱼雷技术

对目前舰艇反鱼雷技术中的非杀伤、软杀伤和硬杀伤等比较先进的手段进行了阐述,并在此基础上分析研究了舰艇反鱼雷技术的发展趋势。     

Community-Based Management for Sustainable Fisheries Resources in Phang-nga Bay,Thailand

Fishing communities, the Government of Thailand Department of Fisheries, local nongovermnental organizations, universities, the Food and Agriculture Organization of the United Nations (FAO), and FAO's Bay of Bengal Program have undertaken a partnership in management of Phang-nga Bay's coastal resources. It is the first project of its kind in Thailand, and although still in the early stages, offers insights that may contribute to our knowledge of how we can improve our management of coastal resources, including the importance of (1) building relationships within the governance process; (2) combining education, enforcement, and economic incentives to achieve compliance; (3) implementing solutions early; and (4) government support of community-based decisions. These insights reinforce trends emerging in other coastal management projects in the Asian region.     

Catalyzing Coastal Management in Kenya and Zanzibar: Building Capacity and Commitment

Site-based projects were initiated in Chawka Bay-Paje, Zanzibar, and Nyali-Bamburi-Shanzu, Kenya, to demonstrate the benefits of an integrated coastal management (ICM) approach for addressing coastal issues such as tourism development and enhancement of resource-dependent village economies in eastern Africa. A two-year, multidonor project used three primary strategies to make rapid, but sustainable, progress toward ICM. These included using interagency government teams for ICM planning, adopting an internationally recognized framework for ICM as a project ''road map,'' and explicitly incorporating capacity-building strategies into all aspects of the project. Within two years, integrated ICM action strategies, prepared through participatory processes, were being implemented at both sites, and both teams were working to expand the scale and scope of ICM in their nation. More importantly, the project helped create committed, capable, interagency groups that continue to work together to address urgent ICM issues.     

Journal of Marine Science and Application 2014 Sum. Contents

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Errata

正In the paper"Influence of Fouling Assemblage on the Corrosion Behaviour of Mild Steel in the Coastal Waters of The Gulf of Mannar,India"in Vol.12,No.4,Page:509,References were lost,and the two authors’biographies were identical.The correct text is shown below.We apologize to the authors and our readers for any inconvenience caused by the errors.     

单相PWM整流器的建模与仿真分析

文章详细分析了单相VSR型PWM整流器的整流原理,建立了电流内环,电压外环的单相VSR型PWM整流控制器的数学模型和逻辑框图。在MATLAB／Simulink软件环境中进行了仿真,分析了模型的可行性。     

无人反潜系统自主指挥控制研究

无人反潜系统的指挥控制问题是关系其具备实际作战能力的主要问题之一。论文在分析无人反潜系统指控原理和其自主指控水平分级的基础上,采用可变自主控制结构,研究了无人反潜系统分级可变自主指控实现的方法。该方法可赋予无人反潜系统可变的指挥控制自主性,使其在工作环境中能够实时评估自身的自主能力,并主动引入人工干预。这种具备人机智能融合特性的自主指挥控制方法更适应无人反潜系统在复杂战场环境中实战化的需求。