多传感器数据融合算法研究

本文从目标跟踪、提高跟踪精度的角度出发，讨论了基于同类传感器测量的数据融算法和基于不同类传感器航迹的航迹综合算法，将前者用于侦察设备的多站定位，开了一载体的必要机动，后者用于多类传感器的航迹综合，仿真结果表明，多传感器数据融合结果要优于单传感器。     

雷达与AIS目标航迹模糊关联与统计加权合并融合方法的探讨

基于多传感器信息融合理论，探讨了雷达与AIS 2种传感器的目标航迹，采用多因素模糊综合决策航迹关联与统计加权航迹合并的融合方法。确定其模糊因素集、评判集、关联与评判等准则，建立其数学模型，并进行计算机仿真。初步验证了该方法可以有效地提高目标航迹的精度与可靠性。     

异步多传感器数据融合

在分布式多传感器数据融合系统中，由于每个传感器的采样周期不同以及具有不同的通信延迟，导致送入融合中心的局部航迹往往不是同步的。提出一种多传感器异步数据融合算法，该算法首先利用最小二乘实现时域融合，将航迹同步化，然后利用一种序贯的Kalman滤波方法进行融合。     

单平台多传感器多目标数据融合系统

本文介绍在Novell网上建立的一个舰船多传感器数据融合计算机仿真系统，给出该仿真系统用最小二来法的平滑外推法则进行航迹跟踪及利用DemPster-Shafer敌我识别理论对目标敌我属性进行识别的结构图，较系统地阑述了数据融合的一些技术。     

多雷达多目标航迹跟踪法

提出了一种改进的模糊极小极大(Fuzzy Min-Max,FMM)神经网络算法,并结合无师训练FMM神经网络的聚类,给出了一种基于FMM神经网络的多雷达多目标航迹跟踪方法.仿真实验结果表明,这种方法能够有效地完成多雷达多目标的数据融合,并较好地实现了多雷达多目标的航迹相关.     

基于模糊综合技术的多传感器目标识别融合

通过研究基于模糊综合技术的多传感器之间的目标识别融合技术，把不同传感器提供的不同信息进行融合，这样可以把声呐系统的检测、识别、定位和跟踪联系在一起，根据它们之间一定的关系进而提高声呐系统的各项功能，以达到对弱信号的检测和估计。     

分布式多传感器航迹数据融合

本文研究分布式多传感器系统中的航迹数据融合问题，对来自分布于不同几何位置，具有不同精度的多传感器的所有航迹，根据它们的状态向量及其滤波误差协方差阵Ｐ进行融合处理，形成融合航迹，介绍两种典型的适用于分布式系统的航迹融全数学模型。各种模型中又有数值模式。     

面向状态估计的水下多传感器信息融合技术研究

面向状态估计,阐述适于水下多传感器信息融合的技术.分析数据关联的若干方法:"最近邻"方法、"联合概率数据"、"多假设方法"、"基于神经网络的数据关联法"的特点.研究适于反鱼雷精度较高的占用网格框架下的目标距离估计技术.     

一种多传感器航迹融合算法的仿真分析

充分利用目标的位置、速度信息进行航迹融合 ,在一定条件下能够改善目标的航迹精度。本文对基于互协方差的航迹融合算法进行了仿真分析 ,并对航迹融合模型的稳定性进行了探讨。由于传感器精度的差异 ,不同精度传感器融合会产生不同结果 ;在对模型及其稳定性分析基础上 ,给出了传感器融合的限定条件和适用场合     

基于模糊加权的分布式IMMJPDA算法

提出了一种基于模糊加权的分布式交互多模型联合概率数据互联算法.该算法在融合中心采用模糊加权方法对不同传感器关于同一目标的模型概率、状态估计及其协方差进行融合,而模糊权值为各传感器关于各目标的状态估计协方差的迹的隶属度.最后通过计算机仿真验证了该算法的正确性和有效性.     

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.     

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.     

Journal of Marine Science and Application 2014 Sum. Contents

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第34届海洋、离岸及极地工程国际会议(英文)

正St.John's,Newfoundland,Canada,May 31-June 5,2015 OMAE2015 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;     

联合作战计划和执行系统

全球指挥控制系统(GCCS)实施当前美国海军网络中心战信息基础设施的联合计划网络。联合作战计划和执行系统(JOPES)支持GCCS实现联合计划。JOPES有两类计划：时间不限的精密预案计划生成作战计划、方案计划或职能计划；时间敏感的危机行动计划生成作战命令或战役方案。前者在和平时期创建的作战计划是后者的计划基础，加速应付危机的能力。     

Recent progress on wave induced loading measurements in warships

Recent measurements of wave induced hull strain and flexure in RN warships are presented together with the derivation of the current design criteria for extreme hull girder bending loads. The history of the development of the shipboard instrumentation used is given and recent developments to improve the quality and ease of analysis of the data are described. An unexpectedly high transverse asymmetry in the longitudinal strains measured in destroyers is shown to be the result of a combination of vertical and lateral bending in oblique seas. Finally recent theoretical comparisons between the loading of Deep-Vee hulls and conventional UK rounded bilge hulls are presented which demonstrate the higher loading experienced by this type of hull form.     

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.     

Eastbound or westbound ?

In terms of equal sailing distances, where is the inflexion when ships depart from ports in the Asian Continent to New York via Suez and/or Panama？
The answer is China South Port Group （Hong Kong, Shenzhen and Guangzhou）.     

Impact of regulation on the performances of long-distance transport services: A comparison of the different approaches in Sweden and Norway

Despite the many socio-economic similarities between Sweden and Norway, differences in jurisdiction, organisation, cooperation, and financing of long-distance passenger train and coach services have led to the development of four distinctively different ways of serving the markets. This paper describes how the train and coach markets have developed in the two countries, with emphasis on regulatory and industrial structure and a couple of performance variables.Looking at passenger rail, both countries separated infrastructure from operation over a decade ago. However, while Norwegian rail is characterised by an almost monopoly supplier, rail services in Sweden are partly decentralised to the responsibility of county authorities and are widely subjected to competitive tendering. The rest of the network is about to be opened up for on-the-track competition. Swedish Rail (SJ) has spent the last decades consolidating its core business (passenger rail) and sold out its other businesses. In contrast, the Norwegian state rail (NSB) has expanded its business to become a major bus operator and property owner, with extensions also into the Swedish market.The coach industry was more recently deregulated in both countries. The Swedish coach market is dominated by privately owned companies operating services to and from Stockholm. In Norway, state-owned NSB is a major coach operator on medium distance routes, and is also the largest partner of Nor-Way Bussekspress which totally dominates long-distance coach services. Further, the Norwegian coach market is characterised by cross-ownership and cooperation which has enabled an extensive route network which covers most of Norway.We find distinct differences in achievements in the two modes and in the two countries. Swedish rail services have succeeded in winning market shares and in renewing and developing both infrastructure and service levels to a greater extent than the Norwegian model. On the other hand, the Norwegian coach market seems to be more developed and efficient compared to its Swedish counterpart.The paper concludes with a discussion on the possible links between the different approaches and the performance observed, with the aim to stimulate further and more detailed research on some important issues.