信息错误检测项目的关系分析

从提高信息质量这一目标入手,定义了理论信息错误类别空间、可检测信息错误类别空间、检测项目集等基础概念,分析了检测项目集之间的对等、相交、包含和互斥等4种关系及其特点,形成了信息错误检测项目集的2种生成与优化方式,以及若干优化原则,并给出各原则的优先顺序。     

现代机载探测系统多源信息融合算法

针对机载探测系统的特性,应用Dempster-Shafer(D-S)证据理论和主观Bayes的组合算法,对来自机载SAR雷达、机载前视红外搜索跟踪系统(IRS)、电子支援系统(ESM)等探测系统多次观测所获得的数据,以及来自地面的电子情报(ELINT)的不同信息进行实时融合、识别,进而确定攻击对象.通过实例进行仿真证明,这种组合算法适用于不同类传感器和不同格式信息间的融合,适合于复杂信号环境.     

新型驱护舰编队舰空导弹防御体系射击效能研究

针对新型驱护舰编队舰空导弹防御体系射击效能评估这一难题,对其射击效能准则进行了确立,提出了基于排队论的射击效能评估模型,对体系射击效能进行仿真计算,总结出能对系统射击效能做出准确评估的方法,并利用实例对模型进行了验证。     

对抗条件下SBIRS对战略导弹突防能力影响研究

为了研究对抗条件下天基红外系统对战略导弹突防能力的影响,基于战略导弹突防能力计算模型,从理论上分析了红外假目标干扰、气溶胶遮蔽和红外隐身技术等对抗措施下天基红外系统对战略导弹探测概率的影响,给出了对抗条件下战略导弹突防能力的计算模型。为作战仿真研究奠定了一定的基础。     

TOPSIS法用于区域防空重点保卫目标排序计算

区域防空作战中优化选择重点保卫目标,集中部署优势防空兵力,才能确保重点目标不受或少受损失.分析了影响保卫目标重要性的主要因素,采取德尔菲法获得指标值,采用层次分析法得到指标权重,利用逼近理想解的排序法对保卫目标的重要性进行了定量分析.最后通过算例对算法的正确性和实用性进行了验证.     

架构和模式在水声信息流仿真软件中的应用

水声信息流仿真软件系统涉及多目标、多声纳以及多变的海洋环境.仿真软件的复用性是现代软件工程的重要性能指标.针对系统开放性的特点,在领域分析模型的基础上,采用了面向对象方法设计仿真软件模型.为了满足软件多层次复用的需求,应用软件架构技术和设计模式设计仿真软件.根据水声信息流仿真软件需求,系统划分为四层结构;按功能,层又可分解为包.可复用的设计模式用于设计不同层和包中类之间的关系.提出的仿真软件模型具有良好的可扩充性与可复用性.     

The comparison of military budgets of the eastern and central European countries

The evolutions of military expenditures in Eastern and Central European countries are difficult to estimate and to compare, due to the lack of available data for these states. Some results of the extent of cuts in defence spending since 1990 are interesting to interpret, but it is difficult for econometricians to use these figures even carefully. The structures of national military expenditure have been modified to the detriment of arms equipment. Thus, the disarmament process needs a special analysis of the arms industry.     

On the normality and abnormality of offsets obligations

Defence offsets have often been described as government‐to‐business compensation arrangements or contracts involving “reciprocity beyond that associated with normal market exchange”. This paper argues that it is irrelevant and misleading to use this notion as a criterion for defining offsets.

The paper also explores the apparent inconsistency between the maximising efficiency in defence procurement and the application of offsets requirements. It is shown that defence offsets are a subset of all the price‐quality‐quantity trade‐offs which in general characterise negotiations surrounding complex transactions.

It is argued that although reciprocal or offsetting arrangements are a normal aspect of commercial transacting, the operation of certain offsets schemes namely mandatory offsets obligations, may inhibit the buyer's flexibility in negotiating deals and result in inefficient procurement. This leads us to ask why these offsets schemes have persisted for so long.     

RETROSPECT AND PROSPECT: TRENDS IN COST AND THEIR IMPLICATIONS FOR UK AEROSPACE

This paper, intended to stimulate debate, suggests that we are at a turning point in the history of the UK military aerospace industry. It argues that there is urgent need for a fresh vision as to how the UK military aerospace industry can both prosper and make its maximum contribution to the defence of Britain. Further, the resulting plans and policies must emphasise the robustness of defence capabilities in a future in which the only thing we can be certain is that it will be very different from the present – especially whenever defence most matters.     

Chains,networks and shifting paradigms: the UK defence industry supply system

Industrial supply chains have emerged as the focus of much economic and business research over the previous decade and defence is no exception. This paper reviews contributions made to the body of knowledge in this field with particular attention given to primary research undertaken on the UK defence industrial supply system. In doing so, the author assesses the quantity and quality of knowledge available to researchers, analysts and policy makers. There have been a number of valuable contributions to the literature and this paper reveals a subject that is extremely complicated, dynamic and yet under‐researched. It is suggested that it may well be this complexity and dynamism, coupled with difficulty in accessing data, that has inhibited research development in this field. Defence industry supply systems are repeatedly referred to as ‘chains’; however, primary research consistently suggests this is a misnomer – the author concludes that future analysis of the UK defence sector must embrace directly the economics of networks if understanding of the same is to progress and industrial ‘invisibility’ is to be avoided.