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941.
本文针对星载多通道高分辨宽测绘带合成孔径雷达系统,提出了一种地面运动目标检测和参数估计方法,该方法首先利用空时自适应处理进行杂波抑制,然后采用传统SAR成像处理得到模糊的运动目标图像,接着利用恒虚警检测技术检测出所有运动目标,包括真实目标和由于多普勒模糊引起的虚假目标,再根据模糊图像的空间位置关系从所有成像目标中检测出运动目标的真实成像位置,最后根据运动目标的斜距历程得到因运动目标速度引起的图像位置偏移,由此估计得到运动目标速度。该方法具有运算量小、检测精度高等优点,星载仿真数据验证了本文方法有效性。  相似文献   
942.
This study revisits the causal relationship between military spending and economic growth in 10 Middle East countries via a panel causality analysis that accounts for cross-sectional dependence and heterogeneity across countries. Our results indicate unidirectional causality from military spending to growth for Turkey; one-way causality from economic growth to military spending for Egypt, Kuwait, Lebanon, and Syria; bidirectional causality for Israel; and no causality in either direction for Jordan, Oman, and Saudi Arabia. The empirical evidence does not provide consistent results regarding the causal relationship between defense expenditure and economic growth in these countries.  相似文献   
943.
In June 2000, the Conference of Heads of State and Government of the Economic Community of Central African States (ECCAS) adopted the Protocol on the establishment of the Peace and Security Council for Central Africa (COPAX), with its two technical structures, namely the Central African Multinational Force (FOMAC) and the Central African Early Warning Mechanism (MARAC). MARAC is tasked with collecting and analysing data for the early detection and prevention of conflicts and crises. It currently consists of the Central Structure located at the ECCAS Executive Secretariat in Libreville (Gabon) and 31 Decentralised Correspondents spread throughout the ten member states of ECCAS. This article assesses the performance of MARAC in the light of its assigned objectives. Bearing in mind the peace and security challenges facing the central African sub-region, the central argument of this article is that while the establishment of MARAC is commendable, it flowed more from the logic and context of the establishment of similar mechanisms on the African continent during the same period than from any displayed capacity and/or readiness on the part of ECCAS to implement the recommendations due to emanate from such a structure.  相似文献   
944.
ABSTRACT

International Organisations (IOs) are crucial actors in spearheading the global adoption of anti-money-laundering (AML) legislation. However, the extent to which AML legislation has been implemented in Zimbabwe under the aegis of the Financial Action Task Force (FATF) and East Africa and Southern Africa Money Laundering Group (ESSAMALG) may put the efficacy of legislation passed at the behest of IOs into question. This article suggests that glocalisation may enhance the international fight against money-laundering. That is to say, international standards should be applied domestically with due regard for local legislative environment.  相似文献   
945.
龚婷 《国防科技》2013,(5):89-93
国防基础研究是国防科技创新的源头和武器装备可持续发展的重要保障.文章分析了国防基础研究的内涵及规律,在此基础上有针对性地研究了国防基础研究实施中的管理模式问题,包括主管部门、承研主体、第三方监督评价等,以期为国防基础研究的健康可持续发展提供参考.  相似文献   
946.
反舰导弹(矛)与舰载反导武器(盾)之间的斗争是现代海战重要格局之一。美俄二大军事大国在矛与盾的发展上,均以对方为假想敌,研究使自己的矛如何突防对方的盾,以及自己的盾如何拦击对方的矛。由于历史条件,国家政治需要和本国的技术优势不同,二国发展矛与盾的指导思想和设计准则,以及在攻防策略上都有很大不同。文章从深层次分析这些不同特点,并探讨它们的发展走向。  相似文献   
947.
地下工程防水防潮一直是工程界的难题,传统技术存在难根治、易反复的缺点。选择某一洞库进行电渗透技术工程试点研究:先详细介绍电渗透技术和施工工艺情况;再采用在工程内布置电极并施加脉冲电压的方法,利用电场力迫使水分向工程外岩体移动,达到降低工程内部湿度、防水防潮的目的。工程应用表明,电渗透防水防潮技术拥有效果明显、运行费用低等突出优点,具有推广前景。  相似文献   
948.
构建高效的防空反导系统是防空反导作战的基础。运用复杂网络理论,建立基于无标度网络防空反导系统模型,并将其统计特征同基于WS小世界网络的模型进行了比较,得出基于无标度网络的防空反导系统有更好鲁棒性和抗毁性,对网络化防空反导系统的构建有一定参考价值。  相似文献   
949.
The Western European defence industry used to be characterized by numerous constraints, especially in the small countries, subject to uneconomic defence production policies. It faces, since the end of the Cold War, a succession of new challenges such as budget restrictions, armament reductions and geopolitical upheavals. The EU is pushing in the direction of a cohesive foreign policy, including security and defence. Today, the emergence of a more consolidated European defence industry and the presence of oligopolistic European companies imply the definition of new roles for the EU and for its European Security and Defence Policy (ESDP). The solution is not protectionism, but more co‐operation to ensure effective defence production at a socially acceptable cost. In the framework of this co‐operation, defence companies in small and medium countries have a role to play as part of the supply chain to major weapon system integrators.  相似文献   
950.
This paper discusses the performance of Saudi Arabia's defence offset programmes. The Kingdom is involved in some of the World's biggest defence offset agreements and a review of the problems it has faced and the policies it has introduced provides a useful insight into that part of the international defence market where trade and development meet.

The paper reviews the origins and development of Saudi Arabia's major defence offset programmes. Saudi policies towards defence offsets are outlined before assessing the practical impact of the programmes themselves. The author concludes that Saudi Arabia's offset projects have had only a minor impact on the Kingdom's economy to date and makes a number of policy recommendations which are designed to enhance the utility of the programmes in the Kingdom's drive to enhance and diversify the technological base of its economy.  相似文献   
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