一种新的鱼雷垂直命中目标的制导方法

该文针对鱼雷采用前视角声纳和旁视声纳识别和跟踪目标，引入了初始导引段跟踪虚拟目标的概念，提出一种新的精确制导方法，给出了导引跟踪和垂直命中弹道的数学模型。经仿真和分析表明：该制导方法对攻击目标的初始态势几乎没有限制，即使目标为逃避攻击进行转向机动，也能垂直命中目标。     

基于目指信息的潜射线导鱼雷尾转声制导方式研究

针对目指信息保障下潜射线导鱼雷远距离攻击时,采用线导+尾流自导鱼雷捕获目标概率较低的问题,提出当鱼雷越过目标推算航向线后将尾流自导转换为声自导的制导方式。介绍目指信息传输模型、目标运动假设模型、鱼雷曲线转向模型和线导+尾流自导推算前置点导引模型;提出一种鱼雷尾转声制导方式,分析目标推算航向线、尾转声时机、尾转声鱼雷航向和鱼雷到达目标散布中心后的机动搜索方案。通过仿真计算,分析了线导+尾流自导、线导+声自导和线导+尾转声等3种制导方式在不同初始态势下的鱼雷捕获概率,验证了采用尾转声制导方式兼具尾流自导鱼雷抗干扰能力强和声自导鱼雷捕获概率高的特点。     

线阵声诱饵对抗智能鱼雷尺度识别效果分析

针对智能鱼雷常用的目标尺度识别方法,建立了线阵声诱饵模型.采用边发边收和多点协同应答的方法,模拟尺度目标高频回波.采用方位走向法和视在张角法对该模型进行尺度识别分析,仿真结果证明线阵声诱饵具有尺度目标的方位延展特性,可有效对抗智能鱼雷的尺度识别.     

鱼雷武器远程精确打击导引模式和技术架构初步探索

中、远程精确打击是潜艇使用鱼雷武器攻击肮母编队、大型水面舰艇编队的主要作战模式。本文以远程反舰重型鱼雷武器为背景对鱼雷武器导引模式和技术的框架思路、关键技术、数据融合方法和环境进行了初步探索。利用鱼雷导引数据综合处理装置。建立立足于鱼雷武器的鱼雷导引数据处理体制，强化与舰船作战指控装置间的目标信息沟通、充分利用作战体系、潜艇平台、鱼雷的探测数据进行目标运动分析，从而提高鱼雷武器对目标远程感知和跟踪能力，可以大幅度提高鱼雷武器系统的综合作战性能和协同作战能力。     

对抗智能鱼雷的声学模拟数学模型初步研究

基于智能声自导鱼雷在不同的源一场关系条件下的目标识别及其反对抗措施,初步研究了对抗智能鱼雷的机理方法,提出了水声对抗器材在不同的目标距离场(目标远场与中、近场)诱骗智能声自导鱼雷的声学模拟数学模型.     

基于灰色关联的来袭鱼雷制导方式识别

准确识别来袭鱼雷制导方式是水面舰艇在鱼雷防御过程中采取有针对性对抗措施的前提。本文分析直航鱼雷、声自导鱼雷、尾流自导鱼雷和线导鱼雷在潜艇攻击征兆、鱼雷齐射数量、航速变化次数和累积方位变化量上的差异,选取这4个变量作为特征指标,运用灰色关联分析法建立来袭鱼雷制导方式识别模型。计算实例证明该方法的有效性,可为水面舰艇的鱼雷防御提供有益参考。     

潜艇水声对抗系统中的鱼雷报警问题

本文分析了鱼雷运动辐射噪声和鱼雷运动所具有的特征，采用新的谱估计方法和时－频谱的多普勒分析技术，对鱼雷目标被动识别问题进行了探讨，提出了以模糊模式识别理论为基础的目标识别方法。在由接收信号的特征信息所构造的论域上，建立相应的隶属函数，依据最大隶属度原则，来识别判决鱼雷目标。文中还就鱼雷报警系统中的作用距离进行了理论分析和估计。     

基于正交相关处理的反鱼雷鱼雷声引信接收机的设计

反鱼雷鱼雷攻击来袭鱼雷时,自导装置将其引到来袭鱼雷附近,当声引信装置判定来袭鱼雷在其作用半径之内时,引爆装药,摧毁来袭鱼雷.文中对主动非触发引信接收样本信号进行分析,分析结果表明反鱼雷鱼雷的接收机可采用正交接收机,并阐述其理论模型、工作原理、电路组成及导出正交处理电路的理论处理增益,最后实验结果表明处理增益可以满足技术要求.     

美国海军水面威胁智能识别方法

介绍美国海军水面威胁智能识别系统。该系统可用于分析水面目标航迹的行为及相关有用信息,确定嫌疑最大和威胁最严重的目标航迹,旨在将有限的识别传感器资源用于威胁最大的目标航迹识别。水面威胁智能识别系统基于人工智能技术,实现水面威胁识别专家行为的自动化,提供水面航迹相关数据自动化分析,对威胁目标进行假设和推理分析。     

逆合成孔径成像技术在声自导鱼雷中的应用研究

针对鱼雷的真假目标识别和要害部位识别问题,提出了将逆合成孔径成像技术应用于声自导鱼雷的研究思路,可为声自导鱼雷提供判定目标真伪、确定目标关键部位的一种最为有效和直观的手段.简要介绍了逆合成孔径成像技术及其在声自导鱼雷中的应用原理,并分析了逆合成孔径成像的国内外研究现状、应用前景和下一步的研究方向,对鱼雷声自导技术具有一定的参考意义.     

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

正~~     

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.     

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.     

某海港码头的撞损修复

依据码头撞击受损区域调查检测结果,对受损构件提出合理的修复方案,为码头的安全运行提供保障。