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211.
无人机系统是未来进行信息对抗、夺取信息优势、实施火力打击的重要手段。"自主性"是无人机系统区别于有人机最重要的技术特征,实现无人机系统的自主控制,提高其智能程度,是无人机系统的重要发展趋势。对无人机系统自主控制问题进行了阐述,首先分析了无人机系统自主控制技术的发展需求,然后介绍了自主控制的概念和自主等级的划分;分析了无人机系统自主控制技术的研究现状,提出了无人机系统自主控制的关键技术问题,主要包括体系结构、感知与认知、规划与控制、协同与交互等;最后对无人机系统自主控制技术的发展趋势进行了展望。 相似文献
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复杂电磁环境对舰载导弹防空系统影响分析 总被引:1,自引:1,他引:0
复杂电磁环境对舰载导弹防空系统影响的分析是海军战法研究的核心问题。运用信息战原理,在信息与火力联合作战能力分析平台上的初步试验表明:在复杂电磁环境下,信息因素可以使舰载导弹防空系统击毁入侵飞机数量的统计平均值下降553.96%,火力因素可以使统计平均值下降342.72%,信息与火力联合因素可以使统计平均值下降274.80%,整个舰载导弹防空系统性能趋于恶化。因此,根据复杂电磁环境对舰载导弹防空系统影响的分析结果,制定科学的决策,提高抗电子攻击能力和导弹打击精度,达到提高舰载导弹防空系统信息与火力联合打击目标能力。 相似文献
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Countries in transition often experience increased levels of crime, making their citizens vulnerable to the exploits of criminals. The lack of reliable statistics hampers the development of sound crime reduction strategies. This essay considers the value of victim surveys as additional sources of information to augment official police data. It presents the findings of such a survey undertaken in Dar es Salaam and compares them with findings obtained in similar surveys of Cape Town, Durban, Pretoria and Johannesburg. The information obtained in the survey conducted in Dar es Salaam provides valuable insights into crime rates and patterns. In comparing the results of the survey in Dar es Salaam, some interesting trends emerged around the theft of vehicle parts and vehicle theft, violent crimes, the levels of violence employed in burglaries and the use of weapons. The information gleaned from these surveys will go far in developing crime reduction strategies and measures that will be effective and appropriately targeted. 相似文献
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Mpume Nyandu 《African Security Review》2013,22(3):1-3
September 11 2001 has put the spotlight on terrorism, and it has been at the apex of the international security agenda ever since. Politicians, lawmakers, scholars and others have been debating the meaning and definition of terrorism for many years. Numerous myths and misconceptions persist on this highly debated issue. With the aid of historical case studies, this article aims to demonstrate how broad a concept terrorism has become. It focuses on its subjective and value-laden interpretation and hence the difficulty of arriving at a universally acceptable definition. The author introduces the concept of ‘colonial terror’, which depicts a distinct form of state terrorism perpetrated during the colonial and post-colonial periods. Like many before her, the author concludes that the definition and meaning of terrorism lie in the eye of the beholder. There are two ways to approach the study of terrorism. One may adopt a literal approach, taking the topic seriously, or a propagandistic approach, construing the concept of terrorism as a weapon to be exploited in the service of some system of power. In each case it is clear how to proceed. Pursuing the literal approach, we begin by determining what constitutes terrorism. We then seek instances of the phenomenon—concentrating on major examples, if we are serious—and try to determine causes and remedies. The propagandistic approach dictates a different course. We begin with the thesis that terrorism is the responsibility of some officially designated enemy. We then designate terrorist acts as ‘terrorist’ just in the cases where they can be attributed (whether plausibly or not) to the required source; otherwise they are to be ignored, suppressed or termed ‘retaliation’ or ‘self-defence’. (Noam Chomsky) 相似文献
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高原环境对柴油机的工作性能影响较大,探索在高原环境下柴油机功率的恢复,对车辆在高原地区正常运行具有重要的意义.基于GT-POWER建立某型大功率柴油机整机数值仿真模型,并验证该模型的准确性;确定二级顺序增压系统方案,建立二级顺序增压系统数值仿真模型,通过增加电动增压器实现二级顺序增压的方法恢复柴油机高原使用功率. 相似文献
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王玉祥 《中国人民武装警察部队学院学报》2014,(5):65-68
精品视频资源共享课是多媒体综合教学模式之一,是学生第二课堂学习的重要内容。对精品视频资源共享课拍摄前的准备工作、摄像机机位与拍摄技法、后期制作等问题进行了探讨。 相似文献