基于分段积分的毫米波被动探测波形建模

毫米波被动探测技术在反装甲导弹和末敏弹制导中起着重要作用,建立科学的被动探测波形模型是探测技术研究的关键.鉴于现有模型在过程描述和计算方面存在的不足,针对毫米波辐射计扫描目标的运动特征,提出了一种新的建模方法,即将扫描过程分成若干阶段,每个阶段单独建模.该模型对扫描全过程物理含义的表征更加清晰.基于此方法在110m和70 m两个高度上对扫描过程进行了仿真,仿真结果验证了该模型的正确性.该模型是被动探测波形研究方法的重要补充,尤其在末敏弹探测技术研究和毁伤效能评估方面具有重要的应用价值.     

异步电机定子电阻的观测

介绍了一种基于神经网络技术的感应电机定子电阻观测方法;讨论了定子电阻样本规划,并设计训练形成了定子电阻神经网络观测器.试验表明,该技术方法能有效地实施定子绕组电阻在线观测.     

一种基于0-1整数规划的全局数据分布优化方法

数据分布是影响并行程序在分布主存多处理机上执行性能的重要因素.针对分布主存多处理机中的数据分布问题,提出了一种基于0-1整数规划、利用数据变换技术进行有效数据分布的方法.该方法通过数据变换技术改变数据的存储布局,以使得数据能被有效地分布,并且该方法还利用数据分布图描述程序被并行的情况及其所含数组被访问的情况,并将全局数据分布优化问题转换为求解数据分布图中最优路径的问题,从而可用0-1整数规划求解最优路径问题.该方法能对多个嵌套循环中具有仿射数组下标的任意维数组进行有效的数据分布,并且也能使嵌套循环的并行度尽可能地大.另外,该方法也考虑了偏移常量的对准问题,从而能使数据通信量尽量地小.实验结果验证了该方法的有效性.     

信息融合系统工程方法

信息融合技术的发展使得相应系统的开发需要系统工程方法的指导.在系统工程方法的研究中,存在传统系统工程方法和企业体系结构方法两个分支.在分析系统工程方法基础上,提出基于传统和企业体系结构方法结合的信息融合系统工程方法,并对该方法的原理和实施方法进行了初步研究.实践证明,该方法兼具原有两个方法的优点,更加适应信息融合系统开发的需要.     

基于D-S证据推理的多传感器信息融合技术在战场目标识别中的应用

近年来,多传感器信息融合技术已经在许多领域得到了广泛的应用,该技术也可以用于战场目标识别.在简单介绍了多传感器信息融合技术的概念和方法之后,详细阐明了D-S证据推理的原理及其应用于战场目标识别的方法,并进行了仿真处理.仿真结果说明,基于D-S证据推理的多传感器信息融合技术,是解决目标识别问题的一种有效方法.     

M序列波形编码性能研究及计算机仿真

针对影响雷达系统性能的地面或水面反射干扰以及噪声干扰,研究了M序列波形编码技术抗上述干扰的性能.通过建立地面反射干扰模型和噪声模型并结合M序列性质的方法对该技术进行了理论分析.由Matlab和基于TM320C6713DSP芯片评估板的仿真结果得出结论,该技术可以较好地提高系统的抗干扰能力.     

IETM技术体系构建研究

在结合国内外研究现状的基础上,通过分析比较IETM(Intractive Electronic Tehnical Manual)技术体系的过程构建法、类别构建法、主体构建法和客体构建法,得到一种综合构建法.该构建方法是在客体构建法的基础上,将贯穿各层的管理技术和交付前的验收技术进行单独归类,并在生成技术和管理技术中引入了过程构建法中“寿命周期阶段”的划分方法,而形成的一套IETM技术体系构建方法.采用这种构建方法形成的IETM技术体系框架,可为规划IETM的研究方向提供指导.     

一种防空武器射击安全控制方法

从现代防空作战新特点出发,通过对传统射击全控制方法的研究,引入"禁射不禁瞄"的禁射存在的思想,提出了一种新颖的图谱式禁射方法.该方法改变了传统射击控制理论,有效弥补传统方法所存在的不足,大幅度提高防空武器系统的作战效能,满足现代防空作战需求.介绍了该方法的控制原理、模型以及技术的实现方法.     

导弹子母弹战斗部对复杂目标毁伤的计算机仿真

介绍了蒙特卡洛方法(Monte-Carlo)仿真的基本原理,并运用该方法对导弹子母弹战斗部对复杂目标毁伤进行研究,利用Matlab语言编制仿真程序实现了计算机仿真.有效地解决了其他方法计算繁琐的弊端,大大提高了毁伤仿真的计算效率.仿真结果表明应用该方法建模技术简洁,模型的通用性好,并能够随时根据需求进行功能扩展.     

军事装备概念图谱构建技术的应用与研究

知识图谱技术在科学统筹装备数据、整合繁杂的装备信息上有较好的效果.为解决通用知识图谱对装备实体的覆盖率不高、装备命名实体不规范的问题,提出了一种军事装备概念图谱构建的方法.该方法依托现有兵器库的结构化数据构建装备概念图谱,采用迭代学习的方法,以开放的多源数据为基础进行了装备实体的补全,确保了概念图谱的广度和精度.该技术不仅有助于提高机器对于装备的认知能力,也可作为本体库应用于装备知识图谱的构建.     

Putin – the masked nemesis of the strategy of ambiguity

Recent events demonstrate the complex and adaptive approach employed by Russia to reassert influence in Europe. The changing face of Russia’s strategy commenced in 2007 when it launched a crippling cyber-attack against Estonia. This was followed by a large Russian conventional attack against Georgia in 2008, occupying two large areas of the nation. 2014 witnessed the Russian annexation of Crimea where in just a week, Russia seized control of Crimea “without firing a shot.” The annexation of Crimea was rapidly followed by a Russian inspired and led subversive war in eastern Ukraine. The common thread among these diverse Russian operations is its use of ambiguity to confound and confuse decision makers in the West.     

The UK,interrogation and Iraq, 2003–2008

The UK’s interrogation operations during the conflict in Iraq (2003–2008) are often portrayed by the media as involving significant amounts of mistreatment. This article demonstrates that these practices are not necessarily representative of the UK’s interrogation operations across this conflict. In doing so it contributes to the limited literature on the practice of interrogation and on the UK’s combat operations in Iraq. The UK’s interrogation capability, and therefore its intelligence-gathering capability, is shown to have rested primarily with the military’s Joint Forward Interrogation Team (JFIT). The JFIT suffered from limitations to the number, training and experience of its interrogators and interpreters. It is argued that maintaining a permanent, higher level of preparedness for interrogation by the British armed forces is desirable.     

Remembering and forgetting Mirambo: Histories of war in modern Africa

ABSTRACT

While the study of organised violence is considered essential to understanding the history of the West, and accordingly imbued with various layers of meaning and remembrance, war is widely regarded as inimical to the modern nation in Africa and stable development more broadly. Using examples drawn from primarily from East Africa, this paper considers the ways in which warfare in the deeper (‘precolonial’) past has been framed and envisioned in recent decades, in particular by governments whose own roots lie in revolutionary armed struggle and who began life as guerrilla movements. While in some cases particular elements of the deeper past were indeed mobilised in pursuit of contemporary political goals, in many other scenarios histories of precolonial violence were beheld as problematic and unworthy of remembrance. This paper highlights the paradox and ambiguity which has attended the memory of key aspects of Africa’s deeper past.     

India's counter-insurgency experience: the ‘trust and nurture’ strategy

The Indian Army, a force trained primarily for conventional warfare, has been engaged in internal counter-insurgency operations since the 1950s. Despite such a long innings on a counter-insurgency mode, little attention has been accorded within military circles to doctrinal innovation for waging sub-conventional warfare in India's democratic political context. At best, the Army continues to view counter-insurgency duty as secondary to its primary duty of defending India from external conventional threats. By conceptualizing a counter-insurgency strategy of ‘trust and nurture’, this article aims to fill this critical doctrinal gap in India's military policy. The author argues that a counter-insurgency strategy of ‘trust and nurture’ based on democratic political culture, measured military methods, special counter-insurgency forces, local social and cultural awareness and an integrative nation-building approach will result in positive handling of India's internal security problems. The author utilizes India's counter-insurgency experiences in Assam, Mizoram, Nagaland, Punjab, and Operation ‘Sadhbhavana’ in Jammu and Kashmir as illustrative empirical indicants in order to validate the ‘trust and nurture’ strategy.     

SIM—LISP:一个通信网络管理专家系统外壳的设计与实现

本文介绍了笔者为开发名为OONMES的网络管理专家系统所实现的一个简单专家系统工具SIM-LISP。SIM-LISP是一个用C/C++语言来实现的模拟LISP语言的可调用函数集,它短小精巧,速度快,可以完成针对网管专家系统的事实或规则知识的表示、匹配、合一和推理等基本操作,并有与知识对象的连接功能,是网管专家系统内核实现的支撑环境。     

Al Qaida on the US invasion of Afghanistan in their own words

This article consists of selected translations from captured interviews and dairies of Al Qaida members. The time period covered is from mid-2001 to early 2002 and concerns their operations in Afghanistan. The material clearly conveys a range of emotion, from confident to despondent, as well as efforts to contest the US actions. The first several pages give the reader context and some possible “lessons learned,” but the story(ies) are best told by the Al Qaida members themselves. All names are pseudonyms.     

Does Intent equal Capability? Al-Qaeda and Weapons of Mass Destruction

The prospect of terrorists deploying weapons of mass destruction (WMD) is often referred to as the foremost danger to American national security. This danger has become more realistic because of al-Qaeda's expanding global network and the expressed willingness to kill thousands of civilians. In the past four years, numerous media reports have documented the group's ongoing quest for WMD capabilities; many reports have detailed al-Qaeda members’ attempts to manufacture or obtain certain chemical, biological, radiological, and nuclear (CBRN) agents to use in WMD against targets in the West and the Middle East. Yet the question remains: Does al-Qaeda's current WMD capability match its actual intent? While most studies of the group have focused on its explicit desire for WMD, allegations of CBRN acquisition, and the killing potential of specific CBRN agents, few open-source studies have closely examined the evolution of al-Qaeda's consideration of WMD and, most notably, the merit of actual CBRN production instructions as depicted and disseminated in the group's own literature and manuals. The following report will examine the history of al-Qaeda's interest in CBRN agents, the evolution of the network's attitude toward these weapons, and the internal debate within the organization concerning acquisition and use of WMD. More so, the following research will assess the validity of actual CBRN production instructions and capabilities as displayed and disseminated in al-Qaeda's own literature and websites.     

Late Medieval Lance Use: Mounted Combat and Martial Arts in Western Europe from the 14th to the 16th Century

Despite the lance’s status and the amount of attention the couched lance has received in historiography, study of its martial art has been neglected. The various lance types and techniques used by western European cavalry have only recently begun to receive scholarly attention. Additionally, Medieval European lance use has too often been studied in isolation, without an adequate understanding of the idiosyncratic and asymmetrical dynamics of mounted combat. Although the charge with the couched lance was a valid tactic, it was only one of many. Light and heavy lances were used in one hand or two to trip, block, unhorse, and wrestle. These techniques were governed by the harsh laws of distance, speed, impact, iron, and asymmetry. By utilizing the surviving Fechtbücher and several Peninsular and Near Eastern sources, a brief foray into the diverse techniques of lance use and their purposes has been attempted here.     

A model for geographically distributed combat interactions of swarming naval and air forces

This article describes the Distributed Interaction Campaign Model (DICM), an exploratory campaign analysis tool and asset allocation decision‐aid for managing geographically distributed and swarming naval and air forces. The model is capable of fast operation, while accounting for uncertainty in an opponent's plan. It is intended for use by commanders and analysts who have limited time for model runs, or a finite budget. The model is purpose‐built for the Pentagon's Office of Net Assessment, and supports analysis of the following questions: What happens when swarms of geographically distributed naval and air forces engage each other and what are the key elements of the opponents’ force to attack? Are there changes to force structure that make a force more effective, and what impacts will disruptions in enemy command and control and wide‐area surveillance have? Which insights are to be gained by fast exploratory mathematical/computational campaign analysis to augment and replace expensive and time‐consuming simulations? An illustrative example of model use is described in a simple test scenario. © 2016 Wiley Periodicals, Inc. Naval Research Logistics 63: 562–576, 2016