采用3电平非均匀量化的脉冲编码策略

作为全数字发信机系统中广泛应用的一种脉冲编码技术,Delta-Sigma调制(Delta-Sigma Modulation, DSM)通过增加量化电平,能够实现调制性能的提升。但限于全数字发信机系统开关功放的具体结构,多电平DSM序列无法直接驱动后级功放电路。在传统3电平DSM基础上,通过引入面积等效原理和非均匀量化技术,提出了适用于开关功放的一种新的脉冲编码策略。理论分析和仿真结果表明,相比常规2电平DSM序列,采用该策略获得的调制脉冲序列具有更优的带内SNR和编码效率性能。     

Hybrid warfare through the lens of strategic theory

Hybrid warfare is the latest of the terms/concepts that have been used within the defence community in the last three decades to label contemporary warfare. It has been officially adopted in the core strategic documents of NATO, EU and national governments and has already inspired many articles, policy papers and books; however, this paper is unique in the sense that it analysis the hybrid warfare concept through the lens of strategic theory. It is argued that hybrid warfare does not merit the adoption as a doctrinal concept. Strategic theory instead, which lies at the nexus of all dimensions of warfare, provides a better viewpoint to approach contemporary warfare. It concludes that efforts should be directed towards exploring warfare under the light of eternal principles instead of proving the emergence of new types of warfare.     

Zr基块体非晶合金屈服行为及屈服准则研究

为了明确块体非晶合金屈服行为与屈服准则的关系,对非晶合金屈服强度间相互关系以及试验中拉伸和压缩断裂面与最大剪应力作用的45°倾斜面的偏离角度进行分析,应用滑移线间断场理论和Mises屈服条件计算出拉伸颈缩断裂面与载荷轴夹角和块体非晶合金实验结果的一致性,利用Coulomb屈服条件计算出的单轴压缩断裂面倾斜角与实验结果相吻合,确定块体非晶合金在不同应力状态下遵循不同的屈服准则:在拉伸条件下该块体非晶合金遵循Mises屈服准则;在压缩条件下遵循Coulomb屈服准则。     

联合作战的远程火力战法动态分析方法*

用定量动态分析方法开发远程火力战法是联合作战规划中必须解决的重要问题。借助仿真和博弈分析的混合方法,在对博弈效用函数计算的基础上,构建基于识别真目标、假目标以及火力命中目标概率的二人非零和(TPNZS)非合作博弈模型来开发远程火力战法动态分析方法,对两个典型的联合作战远程火力打击战法性能的初步动态分析表明:战场势态的动态变化直接影响定量规划最优战法的结果。     

Fighting a Just War in the Midst of an Unreasonable International Strife: World War I and the Collapse of the Central European System of the Triple Imperial Dominion

ABSTRACT

This article constitutes an attempt to demonstrate the complexity of factors affecting the legitimate acquisition and reasonable exercise by a political community of the right to war as specified in the just war criteria of jus ad bellum. To achieve this purpose, a brief analysis is presented of the intentional participation in World War I of thousands of Polish volunteers forming military units deployed by the Central Powers on the Austrian-Russian front. Considered in light of the standard principles of just war, the military enterprise of the Polish Legions, as they were called, turns out to be a paradoxical instance of warfare which, while being part of a state-to-state aggression, must be deemed compliant with all the principles in question. As a means of explaining this paradox, a modification of the concept of justified intervention is proposed, embracing military efforts aimed at the ultimate defeat of all the (unjustly) warring parties operating within a given territory. In consonance with the classic just war approach, it is also argued that the justification for such an intervention is essentially dependent on its being initiated by, or attributable to, an unquestionable state agent acting in defence of the state’s basic prerogatives.     

两级信息融合技术在柴油机故障诊断中的应用

针对传统神经网络在故障诊断中因测点信息多而导致的网络庞大、收敛困难等问题,引入集成神经网络,提高了融合诊断效率;同时引入基于D-S证据理论,这种决策融合方法解决了集成神经网络各个子网诊断结果不一致的问题。在应用于柴油机故障诊断时,首先对测取的正常和故障样本进行小波包AR谱分析,同时提取各个特征频带的能量分别作为集成神经网络对应子网的输入进行诊断,当其无法确定诊断结果时,再运用证据理论进行决策融合输出最终诊断结果。试验证明:基于集成神经网络和D-S证据理论的两级综合诊断模型提高了诊断的准确性和可靠性。     

装备采办中一级密封招标的博弈均衡分析

针对装备采办中的一级密封招标问题，分析了招标过程中的博弈特点，给出了一维贝叶斯均衡的求解方法和解析表达式，论证了在军工企业的最优战略是选择博弈的贝叶斯均衡，军方的选择是增加竞标者的人数。然后，重点分析了招标过程中的多维博弈问题，给出了多维贝叶斯均衡的一般求解方法，并针对特定的事例进行了多维均衡分析。最后，在多维博弈的框架下对一维博弈和多维博弈的均衡结果进行比较分析，结果表明：在一级密封招标过程中，多维博弈均衡是军工企业的最优战略。     

陆军武器装备综合集成体系的系统效能评估模型

陆军武器装备综合集成体系的系统效能评估是体系建设的的重要内容．给出了基于ADC方法研究的陆军武器装备综合集成体系的可用性和可信性定量评估模型，并结合应用示例评估了两种作战模式下某防空系统的作战能力和系统效能，通过评估结果的比较分析，验证了所建模型的有效性。     

微分对策及其在军事领域的研究进展*

介绍了微分对策的产生背景及其半个多世纪以来的发展历程,简述了国内外微分对策理论发展的几个重要阶段及其标志性成果。全面地阐述了国内外关于微分对策在军事领域的应用研究状况,特别是美、俄等军事强国在微分对策军事应用研究方面的现状以及我国研究人员在该领域的主要研究成果。还进一步论述了微分对策在军事应用研究方面存在的问题,并对微分对策的发展前景做出了展望,指出了微分对策在军事应用领域中的研究热点、难点和主要发展方向。     

Rethinking strategic culture: A computational (social science) discursive-institutionalist approach

ABSTRACT

The strategic culture approach has been suffering from a prolonged theoretical stalemate, despite a surge in case studies, which culminated in the Johnston-Gray debate and subsequent schism. The present paper outlines a new approach designed to overcome this deadlock, and consists of three arguments. First, the three previous generations of strategic culture studies have failed to explain how strategic culture influences behaviour. Second, aligning strategic culture theory-building with discursive institutionalism offers a way to overcome this fundamental fallacy. Third, a research programme for strategic culture should draw on computational social science to enable it to present and test middle-range theories.