基于FPGA的高速图像处理系统设计

针对坦克图像处理中存在的系统集成度不高、处理速度较慢等问题,设计了一种基于FPGA的高速图像处理系统。该系统通过在FPGA上配置Nios Ⅱ软核处理器以及图像采集、处理和显示等功能模块来实现其主要硬件电路,并结合系统的软件设计实现了多路图像信号的采集以及图像的放大/缩小、裁剪和叠加显示等功能。由于采用了可编程芯片和并行处理技术,该系统具有集成度高、维修性好、图像处理速度快和实时性强等优点。     

基于SOPC技术的战车综合显控终端设计

通过战车乘员综合显控终端,战车成员可以快速准确地获取战车的各种状态信息,从而大大提高指挥员的判断能力。基于SOPC技术的战车综合显控终端,在单片FPGA内部集成了微理器系统、各种接口控制器、DSP协处理器以及用于液晶显示控制的液晶屏硬件控制器等,具有集成度高、处理能力强、可靠性高、设计灵活、硬件可在系统升级等众多优点。     

高速多通道数据采集传输系统的设计

设计了一种基于FPGA与DSP的高速多通道实时数据采集传输系统。该系统通过FPGA实现对时钟、ADC、DSP等芯片的功能配置,采集数据由FPGA预处理后通过EMIF接口传送至DSP,并完成后续的复杂信号处理。该系统最高数据采集速率可达500 MSPS,FPGA与DSP之间可实现高速率的数据传输。实际测试结果表明,该系统实现了多通道数据的实时同步采集、传输与处理,数据采集达到较高性能,能够满足当前复杂电磁环境下精确制导雷达数据处理分析的需求。     

基于DSP和FPGA的实时图像瞄准具的设计

提出了一种基于DSP和FPGA的实时图像瞄准具的设计方案。其核心部分实时图像处理系统的设计采用了DSP＋FPGA的混合结构,即DSP作为视频图像处理核心芯片,完成复杂的图像处理算法,而采用FPGA实现视频图像的实时采集与显示,以及系统所有时序和逻辑控制。充分利用DSP高速的图像处理能力,以及FPGA灵活的系统编程能力,大大减轻了DSP的负担,使得DSP能够专心于图像处理,极大地提高了系统的实时性、可靠性与灵活性。     

基于DSP和FPGA的载波移相脉冲生成方法

在研究了三电平全桥变流器工作原理和载波移相原理的基础上,设计生成了基于数字信号处理器(DSP)和现场可编程门阵列(FPGA)的载波移相PWM脉冲,用于驱动变流器工作。重点介绍了由DSP和FPGA生成载波移相PWM脉冲的基本原理、系统构成及实现方法,其核心思想是FPGA通过数据地址总线接收DSP输出的移相角与FPGA内部生成的三角波进行二逻辑比较,从而产生移相角可变的PWM脉冲,以满足变流器全工况范围实时控制的需要。通过优化设计,使DSP和FPGA各自的优势得以有效利用。仿真分析表明:该方法计算速度快、控制精度高,同时具有扩展性好、可靠性高等优点。实验结果与仿真结果吻合,验证了该方法的上述优点。     

基于DSP+FPGA的导航计算机数据采集与处理硬件设计

根据捷联惯导系统中数据采集和运算处理的要求,提出了以高性能DSP为核心,由FPGA构成主要外部输入输出接口的导航计算机硬件设计方案;设计了I/F转换电路;给出了各电路的硬件结构框图和各器件的特性、选择与应用。从硬件方面分别讲述了FPGA和DSP的工作过程和功能。利用本方案,对实现军事和工程领域中导航系统微小型化、降低系统成本和体积具有重要意义。     

双离合器自动变速器控制系统硬件设计

在分析双离合器自动变速器结构的基础上,设计了一种基于DSP TMS320F28xx控制器的双离合器自动变速器的电控系统,分析了变速器电控部分电路的设计及应用.实车试验表明:该电控系统能很好地满足实际需求,也为同类变速器电控系统的设计提供了参考.     

基于SOPC和FPGA的智能机器人无线通讯系统设计

针对单处理器系统控制的机器人,其无线通信系统存在丢包现象和实时性差等弊端,设计了一种以FPGA作为机器人的主控制器,以PT2262/2272为通信芯片的无线通讯系统。该设计包括无线发射模块、接收模块、SOPC建立及软件实现。研究结果表明,该方案实现灵活,具有体积小、稳定性高、实时性好等优点,不仅解决了丢包的问题,而且具有一定的可扩展性。     

基于DSP＋μC／OS—Ⅱ的装甲车辆自动装弹机控制系统设计

针对现有自动装弹机控制系统可靠性和可测试性不高的问题,设计了基于DSP的自动装弹机控制系统总体方案和功能模块。给出了改造后装弹机自动装弹工作流程,进行了部分关键电路的设计。实现了系统自检和状态数据的存储功能,有利于外部检测设备进行故障诊断。采用高速DSP芯片TMS320F2812作为核心处理器,内嵌实时操作系统μC／OS-Ⅱ,使系统能够实时、稳定地运行。     

基于FPGA的图像实时压缩系统设计

面对图像信息数据呈现几何级数增长,传统DSP压缩系统难以实时处理。设计了一种基于JPEG2000压缩编码的实时图像压缩系统。系统采用模块化设计,以FPGA为核心控制器,协调采集、缓存、处理和传输等模块工作的顺利进行。采集的图像数据经解码芯片转换,通过FPGA控制进入缓存模块,选用专用芯片ADV212对图像进行数据压缩,压缩比例达到24∶1。试验结果表明,该压缩系统在处理速度、图像压缩等性能上有显著提高,压缩后的图像极大地保留了图像的主观视觉效果,同时保证了系统实时处理的性能要求。     

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.     

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.     

Helping hands: civil–military cooperation and Italy's military operation abroad

In the Post-Bipolar Era the growing complexity of the military operations requires a new approach for the resolution of international crises. Since the end of the Cold War, peace support operations (PSO) have become the mainstay and principal occupation of most Western armies. At the same time, Italy has been one of the most important actors in such an area. The article focuses on the cooperation between military and civil components (a process called CIMIC) as a key variable in the Italian PSOs. We will analyse in detail the main lessons learned from past military interventions as well as the general context in which new tendencies are taking place. The maintaining of a minimum security frame becomes essential to fulfil activities ‘collateral’ to the mission: reconstructing services and infrastructure, food distribution, water and medication, law and order, de-mining, training of local forces, and supporting local institutions. These are the main tasks to obtain thrust and support from the population.     

Terrorism,insurgency, kidnapping,and security in Africa's energy sector

Energy continues to serve as the bedrock of modern economies and the main driver of modern society. For Africa, the production and supply of energy resources such as crude oil, natural gas, uranium, coal, biomass, biofuels and other renewables are an important source of employment, rents, taxes, royalties and profits. This sector brings in several tens of billions of dollars of revenue annually. The production and delivery of such resources, however, depend on critical infrastructures such as pipelines, refineries, processing plants, terminals, rigs, electrical energy pylons, substations, pump stations, vessels, and tankers. These infrastructures have been attacked by terrorists, insurgents, vandals and saboteurs, all of whom see them as targets against which to register their grievances and extract concessions from the state. This paper is a chronological account of some of the documented incidents of terrorism, insurgency, kidnapping, destruction, sabotage, and human casualties suffered in the oil and gas sectors in Africa between 1999 and 2012. It is based on data extracted from the databases of the RAND Database of World Terrorism Incidents and the University of Maryland's Global Terrorism Database (GTD).     

Tacit support for terrorism: The rapprochement between the USSR and Palestinian guerrilla organizations following the 1967 war

This article demonstrates the inconsistent and wavering Soviet attitude towards national liberation movements in general and the Palestinian organizations in particular. Until the late 1960s, the Soviets viewed these organizations with suspicion, hesitating to engage in political dialogue with them. However, in the 1970s, political and military events in the region, as well as modifications in the Kremlin's Cold War strategies, led to a general shift towards the Middle East in Soviet foreign policy. Soviet leaders showed increased willingness to provide certain Palestinian organizations with arms with which to conduct terrorist activities against Israeli, pro-Israeli, Jewish and Western targets. The article explores the complex relations between Palestinian organizations and the USSR in the field of international terror. The study also exposes and analyzes the nature and content of Soviet–Palestinian arms dialogues and transactions. It provides clear evidence that Soviet policymakers and other luminaries were fully informed of, and sometimes directly involved in, these transactions and dialogues at the highest levels.     

A1 Qaeda and the radical Islamic challenge to western strategy

The September 11 global crisis prompted by the attacks on the World Trade Center and the Pentagon raises major questions concerning the nature and trajectory of terrorism in the post-Cold War global order. Hitherto, terrorism has been largely debated by analysts at the level of nation states. Terrorist and insurgent movements have also been largely anchored in nationalist and ethnic power bases even when they have sought to mobilise a transnational ideological appeal on religious or class grounds. There have been a few exceptions to this pattern such as the alliance between the German Baader-Meinhof group and the Japanese Red Army Faction, but even such international alliances as this did not, until at least the 1980s, presage anything like a global terrorist network necessitating a global strategic response. This study examines terrorism and global strategic responses.     

Reviews

Douglas S. Derrer, We Are All the Target: A Handbook of Terrorism Avoidance and Hostage Survival. Annapolis, MD: US Naval Institute Press, 1992. Pp. x+135, notes, index. $14.95. ISBN 01–55750–150–5

Ian Knight, Zulu: Isandlwana and Rorke's Drift, 22–23 January 1879. London: Windrow & Greene, 1992. Pp.136, 150 illus., incl 8 colour plates, maps, biblio. £35. ISBN 1–872004–23–7

Ian Knight, By the Orders of the Great White Queen: Campaigning in Zululand through the Eyes of the British Soldiers, 1879. London: Greenhill Books and Novato: Presidio Press, 1992. Pp. 272, 17 illus., 1 map. £18.95. ISBN 1–85367–122–3

Manfried Rauchensteiner and Erwin A. Schmidl (eds.), Formen des Krieges: vom Mittelalter zum ‘Low‐intensity’ Conflict’. Graz : Verlag Styria, 1991. Pp.208. DM35. ISBN 3–22–12139–7

Harold J. Kearsley, Maritime Power and the Twenty‐First Century. Dartmouth: Dartmouth Publishing Company, Limited, 1992. Pp.xv + 203, 13 diagrams, index. £32.50. ISBN 1–85521–288–9     

Helping hands: external support for the KNU insurgency in Burma

This article analyses to what extent the Burmese KNU insurgency made use of external support from states, refugees, and diasporas. Based on extensive fieldwork it is concluded that support from neighbouring states and refugees has for years kept the Karen rebellion alive. Western countries perceived forms of resistance to the illegitimate Burmese regime as just and have therefore played a crucial role in the continuation of conflict in Karen State. It is important that policymakers and donors as well as executing organizations continue to reflect critically on the way they exercise their work.     

基于GTST-DMLD-ESD的装备RMS建模仿真

装备的RMS是装备的重要设计参数,是影响战备完好和保障能力的关键因素.引入GTST-DMLD作为主要建模工具,建立起装备系统的RMS描述模型,以ESD为补充和扩展,对维修过程进行建模.并以GTST-DMLD-ESD模型作为装备RMS仿真的核心,对装备RMS仿真模型的总体框架进行了研究,并对各模块进行了较为详细的探讨.