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991.
在常见的各种信息隐蔽传输方法中,宿主载体大多集中于图像、音频、视频等各类多媒体信源,而通过射频信号作为载体来实施隐蔽信息传输的技术手段十分缺乏。针对这一情况,提出了一种基于噪声调相干扰寄生扩频的隐蔽信息传输方法。在干扰机对雷达、通信等目标对象发射噪声压制干扰信号的同时,将需要传输的信息寄生调制于噪声干扰的相位分量,形成一种类扩频传输信号,并有效隐藏于大功率干扰信号之中实现传输。在接收端通过解扩处理而恢复出隐藏的调制分量,最后解调出其中所隐蔽承载的数字比特流。仿真试验结果显示了该方法的可行性与有效性,这对于电子对抗设备的综合一体化应用和隐蔽通信的实施提供了新的技术途径。 相似文献
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文章就习主席提出的"两个不够"问题——打现代化战争能力不够及指挥现代化战争能力不够,提出了在全军实行《岗位资格认证制度》和《岗位轮换制度》,在全军院校实施"教学名师工程",以及进一步加强部队训练与考核大纲体系建设三点措施建议。 相似文献
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Idowu Johnson 《Defense & Security Analysis》2017,33(4):320-332
The quest for a Biafran Republic by the Igbo ethnic group has become a recurring demand in Nigeria since the late 1960s. The agitation has been premised on claims of marginalisation and exclusion of the Igbo people in the Nigerian body politic. In spite of the consistency of the agitation through various Administrations, there was a noticeable lull in such demands during the time of President Goodluck Jonathan, only to assume a frightening proportion since the advent of the Administration of President Muhammadu Buhari. This article locates the factors in the outcomes of the 2015 general elections: the question of inclusion and representation; the unfinished nature of the Nigerian civil war; economic challenges, miscalculation both on the part of the Igbo people and indiscretion in the initial appointments made by President Muhammadu Buhari. The article recommends political restructuring of Nigeria as one of the ways to address secessionist tendencies. 相似文献
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Davis Brown 《Journal of Military Ethics》2017,16(3-4):145-156
Interdisciplinary communication on war is impeded by doctrinal gaps concerning its morality, immorality, and amorality. Much is written on ad bellum ethical standards for military force by states, mainly in the fields of international politics and religious studies. However, a necessary first step in comparing these different approaches to war ethics with each other is to develop a system for classifying them. The classification system offered in this paper places war ethics on a grid with two scales. One axis of the grid ranges from permissiveness to restrictiveness. The other axis ranges from regard for self to regard for others. Twelve forms of war ethics are assigned points within the grid, including pacifism, just war, holy war, UN Charter obligations, several variants of realism, cost–benefit analysis, isolationism, and various ideological war ethics such as communist and fascist approaches. In doing so, this paper lays the groundwork for “quantifying” war ethics, to enable measurements of their effects against other state-level characteristics and outcomes of interaction. 相似文献
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