装备作战需求论证的作战任务清单质量评估方法

装备作战需求论证的作战任务清单质量评估,是装备作战需求论证质量评估的一项重要内容。在介绍体系结构框架的基本内涵和体系结构作战视图产品的基础上,基于作战视图产品建立了装备作战需求论证的作战任务清单质量评估指标体系,借鉴作战视图设计思想构建了装备作战需求论证的作战任务清单质量评估模型,最后通过实例简要介绍了该方法的应用。     

基于SOA的C~4ISR可执行体系结构

现有的C4ISR可执行体系结构验证评估过程中面向特定的作战想定,难以描述和验证系统资源之间的动态连接关系以支持作战视图中作战任务过程的动态变化.结合SOA思想对C4ISR体系结构框架进行扩展引进了服务视图,通过分析服务视图与原有作战视图和系统视图产品之间的关系,提出一种基于SOA的C4ISR可执行体系结构框架,详细分析了引进服务视图之后C4ISR体系结构的执行过程.     

舰艇编队信息作战视图描述

舰艇编队信息作战视图是该系统体系结构设计的重要组成部分。通过对舰艇编队信息作战任务的需求分析,提出了该作战系统的整体构想,采用基于UML的设计方法,完成舰艇编队作战使命所需完成的任务和行动、作战节点描述,并给出了作战视图的模型产品,为进一步描述整个舰艇编队信息作战系统的体系结构奠定基础。     

基于BPMN的作战视图辅助设计方法

体系结构设计在C4ISR系统开发中越来越受到重视.由于目前体系结构设计主要是依据DOD体系结构框架,体系结构产品是框架最基本的表现形式,因此,体系结构产品设计是体系结构设计中的一个关键问题.在深入研究BPMN的基础上,提出了基于BPMN的作战视图辅助设计方法,建立了企业过程图与作战视图产品OV5、OV6的转换关系.     

指挥信息系统安全防护作战视图研究

目前指挥信息系统安全防护体系轮廓不清且一体化程度不高,不能有效地进行系统的综合集成。体系结构设计是一种重要的系统顶层设计方法,而作战视图是系统顶层设计的重要组成部分。通过分析军事信息系统体系结构框架作战视图产品的内容和相互逻辑关系,给出网络防御作战任务和行动、作战节点以及信息交换需求的描述,建立了作战视图的几种典型模型。为体系化建设指挥信息系统安全防护体系提供了理论依据,同时为安全防护体系总体设计奠定了基础。     

基于DoDAF人因视图的武器装备体系结构建模方法

随着大规模高技术武器装备投入战争,多军兵种之间的联合协作,使得DoDAF在武器装备体系结构建模中的应用大大提高,从作战人员的视角对武器装备体系结构进行设计与优化已成为DoDAF研究中的热点,考虑作战人员情况下对武器装备体系作战能力进行评估对提高作战效率十分重要。在现有的DoDAF2.0视图产品的基础上,提出并改进人因视图的视图产品和数据元模型,实现了人因视图与DoDAF体系结构框架的有效集成,最后以实例说明该方法的可行性和有效性。     

信息对抗指控体系顶层设计研究

为了更好地发挥指控在信息对抗中的“粘合剂”与“兵力倍增器”作用，文章提出了运用体系结构技术进行信息对抗指控体系顶层设计的研究思路。根据信息对抗的使命、任务和作战运用，研究了信息对抗的作战视图、指控体系的能力视图、数据与通信视图和技术标准视图，并给出了部分视图产品的创建描述。     

基于多视角系统分析的作战模拟引擎设计方法

为解决作战模拟引擎的软件开发问题,对其设计方法进行了研究.首先,分析了多视角系统分析方法的基本思想和优点;然后,提出了作战模拟引擎多视角系统分析和设计方法的概念模型;接着,从视角、视图和模型三个方面描述了作战模拟引擎多视角系统分析和设计方法的框架;最后,对应用该方法的具体要求、过程和工具进行了分析.由此提出了一种基于多视角系统分析的作战模拟引擎设计方法.     

UML的海上编队雷达情报网作战视图描述

海上编队雷达情报网由于缺乏可以参照执行的标准,不能有效地实现系统的综合集成。体系结构设计是一种重要的系统顶层设计方法,是保证系统之间可集成可互操作的关健。美国国防部体系结构框架(DoDAF)适用于各种复杂系统的设计,已成为行业的建模规范。作战视图(OV)是进行系统顶层设计的体系结构技术中的重要组成部分,参考DoDAF2.0版的作战视图产品,采用统一建模语言(UML),对海上编队雷达情报网的作战视图进行了描述。     

舰空导弹超视距协同反导装备体系结构设计方法

以网络化舰空导弹超视距协同反导作战装备发展需求为牵引，基于 DoDAF （ Department of Defense Architecture Framework）1?5体系结构框架，利用体系结构设计软件SA（ System Architect），对协同反导作战装备体系结构进行了初步探索性和概念性设计，提出了体系结构框架裁减、作战视图设计、系统视图设计和体系结构评估等方法，对实现整个装备体系互连、互通、互操作，以及避免重复建设具有重要指导意义。     

基于DoDAF的反导指控系统体系结构模型研究

首先简要介绍了美军反导指控系统和国防部体系结构框架(department of defense archi-tecture framework,DoDAF)的基本情况,确定了体系结构模型开发方法和步骤,然后利用Telelogic公司的system architect软件完成了作战视图、系统视图的分析与设计,为理解指控系统内在规律、开展指控系统顶层设计研究提供理论支持。     

基于DoDAF的侦察卫星支援对海打击作战视图研究

侦察卫星是天基信息支援力量的重要组成部分,是实施海上远程精确打击的主要信息来源。优化侦察卫星支援对海打击作战体系,可以有效提高体系作战能力。基于OODA环描述了侦察卫星支援对海打击作战过程,参考DoDAF进行了侦察卫星支援对海打击作战视图研究,并构建了作战体系结构模型,对于优化侦察卫星支援对海打击体系顶层设计具有重要作用。     

基于USB2.0的数字摄像系统的设计

改变传统的基于PCI插槽的图象卡加摄像头的图象采集模式,介绍了利用CY7C68013和OV9620芯片开发数字摄像系统的设计方案.重点阐述了WDM模式的USB设备驱动程序与采集视频流的界面应用程序的设计.系统可以12帧/s的速度动态显示采集的图象.     

An algorithm for solving general fractional interval programming problems

A Linear Fractional Interval Programming problem (FIP) is the problem of extremizing a linear fractional function subject to two-sided linear inequality constraints. In this paper we develop an algorithm for solving (FIP) problems. We first apply the Charnes and Cooper transformation on (FIP) and then, by exploiting the special structure of the pair of (LP) problems derived, the algorithm produces an optimal solution to (FIP) in a finite number of iterations.     

Democracy and peace: Reply to oneal and russett

The criticism of James, Solberg and Wolfson (JSW) (1999) by Oneal and Russett (OR) is not responsive to the methodologica] issues at stake. JSW argued that war is an endogenous feature of the world political and economic system. If its causes are to be measured, it must be as a structural equation in a simultaneous system. Wedded to the idea that “democracies never fight each other,” OR rely on a single equation to justify their view. JSW claim that such an equation may be an ad hoc reduced form with no causal implications unless the equation is explicitly identified as a structural equation. JSW expand the model to explain democracy and conflict as two endogenous variables. JSW do not claim to have discovered the true relationships between these variables by their minimal expansion of the structural relation. They do show that unless these (and other) variables are treated as part of a system, the results are unstable, contradictory, of minimal size and not a reliable guide to public policy.     

Optimal search for a moving target with the option to wait

We investigate the problem in which an agent has to find an object that moves between two locations according to a discrete Markov process (Pollock, Operat Res 18 (1970) 883–903). At every period, the agent has three options: searching left, searching right, and waiting. We assume that waiting is costless whereas searching is costly. Moreover, when the agent searches the location that contains the object, he finds it with probability 1 (i.e. there is no overlooking). Waiting can be useful because it could induce a more favorable probability distribution over the two locations next period. We find an essentially unique (nearly) optimal strategy, and prove that it is characterized by two thresholds (as conjectured by Weber, J Appl Probab 23 (1986) 708–717). We show, moreover, that it can never be optimal to search the location with the lower probability of containing the object. The latter result is far from obvious and is in clear contrast with the example in Ross (1983) for the model without waiting. © 2009 Wiley Periodicals, Inc. Naval Research Logistics 2009     

Inventory financing under Risk-Adjusted-Return-On-Capital criterion

Risk-Adjusted-Return-On-Capital (RAROC) is a loan-pricing criterion under which a bank sets the loan term such that a certain rate of return is achieved on the regulatory capital required by the Basel regulation. Some banks calculate the amount of regulatory capital for each loan under the standardized approach (“standardized banks,” the regulatory capital is proportional to the loan amount), and others under the internal rating-based (IRB) approach (“IRB banks,” the regulatory capital is related to the Value-at-Risk of the loan). This article examines the impact of the RAROC criterion on the bank's loan-pricing decision and the retailer's inventory decision. We find that among the loan terms that satisfy the bank's RAROC criterion, the one that benefits the retailer the most requires the bank to specify an inventory advance rate in addition to the interest rate. Under this loan term, the retailer's inventory level is more sensitive to his asset level when facing an IRB bank compared to a standardized bank. An IRB (standardized) loan leads to higher profit and inventory level for retailers with high (low) asset. For retailers with medium asset, an IRB loan results in a higher retailer profit but a lower consumer welfare. Calibrated numerical study reveals that the benefit of choosing standardized banks (relative to IRB banks) can be as high as 30% for industries with severe capital constraints, volatile demands, and low profit margins, highlighting the importance for retailers to carefully choose the type of banks to borrow from. When the interest rate is capped by regulation, retailers borrowing from a standardized bank are more likely to be influenced by the interest rate cap than those borrowing from an IRB bank. Under strong empire-building incentives (the bank will offer loan terms to maximize the size of the loan), retailers with medium initial asset level shift their preference from IRB banks to standardized banks.     

冲激信号SAR反向投影成像方法I、Q 实现

本文在分析冲激信号成像特点的基础上，说明了线阵模型是解释冲激信号ＳＡＲ成像过程的有效方法，给出了冲激信号ＳＡＲ反向投影（ＢＰ）方法，针对系统实现问题，提出了对Ｉ、Ｑ两路信号分别积累，求模的ＢＰＩＱ法，并以计算机仿真及与常规的ＢＰ作比较，最后给出了一些有用的结论。