测试总线的发展与展望

测试总线是自动测试系统中控制器与仪器模块之间、仪器模块与仪器模块之间、系统与系统之间的信息通道,在自动测试系统中占据重要地位。随着测试总线技术的不断发展,先后出现了GPIB,VXI,PXI,PXIe,LXI和AXIe等测试总线标准。对测试总线的发展历程进行了回顾,对六种测试总线的特点和应用进行了总结,并比较了不同测试总线的性能,重点对测试总线的未来发展方向进行了分析与展望。     

车电系统TTCAN网络调度设计与分析

针对传统CAN总线无法满足车电系统进一步发展对总线实时性和确定性要求的难题,引入具有时间触发机制的TTCAN (Time-Triggered Controller Area Network)网络,给出了一种车电系统TTCAN网络调度算法.在此基础上,构建了一种新的车电系统TTCAN网络调度设计方案,并以消息的最差响应时间、最大发送周期抖动和总线带宽利用率为性能指标分析了该方案的性能,分析表明:该方案具有良好的实时性、确定性和高的总线带宽利用率.     

Link-16数据链的智能干扰技术分析

Link-16作为当前典型的数据链,具有良好的抗电子干扰能力,对其进行有效干扰是目前军事通信领域研究的重点之一。首先概述了典型数据链的通信体制和抗干扰措施,并参考网络OSI模型和GIG模型,建立了数据链的TDLRM结构模型;然后在此基础上将智能干扰的手段划分为物理层干扰、链路层干扰和跨层干扰;最后对在物理层上的多频点阻塞式干扰和相位干扰、在链路层上的协议攻击以及跨层干扰进行了技术分析。     

软件总线：体系结构分析与设计

软件总线为复杂软件系统的构件组织和管理提供了平台.为规范软件总线体系结构开发,建立了软件总线结构模型,并对其通讯、构件管理、任务调度、接口控制等功能实现进行了研究,提出了软件总线框架结构及其基于软件总线的软件系统开发流程和方法.     

基于有色Petri网的综电系统总线建模

针对运用解析法对战车电子系统总线进行建模和分析困难这一问题,运用CPN Tools工具构建了基于有色Petri网的综合电子系统总线模型,建立了总线性能仿真平台,对某型战车总线性能进行了分析。结果验证了基于CPN的战车综合电子系统总线建模的正确性与可行性。     

1553B 总线仿真系统总线控制软件设计

就仿真系统对１５５３Ｂ单层总线系统和层次总线系统的总线控制软件设计进行了研究,给出了提高系统效率的方案和优化１５５３Ｂ总线数据流的方法。     

随机性检测方法在加密比特流识别中的应用研究

为识别链路层加密比特流,以未加密与加密数据在随机统计特性上的差异为依据,对4种典型的随机性检测方法在比特流长度不同时的识别率进行了比较研究.针对块内最长游程检测过程中出现的比特流尾部比特位不能构成完整子块的问题,提出了2种可行的处理方案.通过对块内最长游程检测门限值函数的研究,基于参数优化的方法改进了块内最长游程的检测方案,在一定程度上提高了识别率.最后,以某无线网络链路层加密比特流为识别对象,对提出方案的有效性进行了验证.     

Multibus总线到ISA总线的接口设计

对Multibus总线和ISA总线接口转换的设计进行了综述,提出了一种采用PLD实现总线接口转换的设计方案,在Multibus总线上实现对ISA总线接口器件的访问.     

Mulitbus总线到ISA总线的接口设计

对Multibus总线和ISA总线接口转换的设计进行了综述,提出了一种采用PLD实现总线接口转换的设计方案,在Multibus总线上实现对ISA总线接口器件的访问.     

蓝牙安全技术浅析

本文探讨了蓝牙技术安全的基本概念，并对蓝牙技术的服务层和链路层安全机制进行了深入分析，指出了蓝牙技术面临的安全威胁。     

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).     

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.     

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.     

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.     

Cyber sheiks and grassroots jihadis: the war in Syria and the devolution of the Bosnian Salafi communities

ABSTRACT

What was the scope of the Bosnian jihadi participation in the war in Syria? Did the Bosnian volunteers tend to join one particular faction? Why did the Bosnian youngsters decide to join the holy war in the Levant? Was this an organized and hierarchical process or was this a grassroots movement? Last, were all the Salafis in Bosnia supportive of this dynamic or did this process cause internal frictions? These are some of the questions that this research will try to answer.     

Country survey XVI the defence sector in the economy of a declining superpower: Soviet Union and Russia, 1965-2001

The Soviet Union was able to develop a large military-industrial complex and become the world's second superpower despite deficiencies in its centrally planned economy because defence was given high priority status and special planning, rationing and administrative mechanisms were used to attain national security objectives. However, in the period 1976-85 the effectiveness of priority protection diminished and defence institutions experienced more of the problems typical of the shortage economic system. The heavy defence burden also created growing difficulties for the civilian economy. The attempts by the Gorbachev government to reform the defence sector and improve defence-economic relationships during perestroika (1985-91) uniformly failed. For most of the transition period, the Russian military-industrial complex has been adversely affected by its low priority status, cuts in defence spending, instability of the hybrid politico-economic system, and negative growth of the economy. The armed forces and defence industry have been reduced in size and their outputs of military services and equipment have fallen to low levels. Nevertheless, the Russian armed forces still have over one million troops, significant stocks of sophisticated conventional weapons, and a large nuclear arsenal. The government of President Putin has raised the priority of the defence sector, increased real defence spending, and adopted ambitious plans to revive Russian military power. It is likely, though, that tight resource constraints will hamper efforts to reform the armed forces and to upgrade weapons. By 2010 Russia will be an important, but not dominant, military power in Eurasia.     

Traffickers,terrorists, and a ‘new security challenge’: Russian counternarcotics strategy and the Federal Service for the Control of the Drugs Trade

The collapse of the Soviet Union precipitated the massive expansion of drug use and trade in Russia. The country now has one of the largest populations of injecting drug users in the world and has become the largest single-country market for Afghan heroin. In 2003 the Federal Service for the Control of the Drugs Trade was created to coordinate a comprehensive counternarcotics strategy appropriate to the scale of this threat. The service continues to face a number of challenges in its early stages of development. However, it has made considerable advances in improving responses to large-scale organised crime and in building international cooperation.