作战系统MAS中的作战行动域与实际组元逻辑关系分析

建立作战系统多Agent系统(Multi-Agent System,MAS)组织,必须首先建立由作战系统实际组元到Agent的映射。围绕作战系统MAS的建立,在提出由作战系统实际组元到Agent的映射过程与方法的基础上,提出了作战系统领域概念视图、作战行动域及其各层次概念、实际组元逻辑关系分析的基本方法,为实现基于多Agent的作战系统建模与仿真奠定基础。在基于多Agent的信息化战场多传感器仿真演示系统中,证明了该方法的可行性与有效性。     

基于集对分析和LS-SVM的装备研制风险综合评价

【】为了有效防控武器装备的研制风险,确保武器装备项目的顺利推进,提出一种基于集对分析(SPA)理论与最小二乘支持向量机(LS-SVM)方法的装备研制风险综合评价方法。在该方法中,首先,根据武器装备研制的具体特点,建立了装备研制风险评价指标体系。然后,在此基础上,引入SPA分析理论中的联系度和集对概念构建了训练样本和测试样本。最后,使用获取的样本对LS-SVM进行训练和测试,得到装备研制风险评价模型,并据此给出评价结果。案例分析表明,所提出方法过程简便,定性定量结合,形式易于理解,评价结果也更加贴近实际,对于提升装备研制项目风险管理和决策水平,具有重要的实际意义。     

模糊神经网络在发电机励磁控制中的应用

采用含有惯性项学习算法的BP神经网络代替模糊PID控制器,对同步发电机励磁控制系统进行仿真。仿真结果表明,在系统遭受扰动或突加减载时,所设计的模糊神经网络励磁控制器具有良好的控制效果。     

基于随机森林法的机械变速箱技术状态评估

将随机森林RF(Random Forests)引入到机械设备技术状态评估领域,对某型坦克不同劣化程度的变速箱振动加速度信号数据进行分类研究,分类精度达到97%以上,证实了此方法的有效性。基于RF的评估方法具有组合分类器精度高、树型分类器运行速度快的特点,在机械设备状态识别、故障诊断中表现出了良好的性能。     

面向目标对峙跟踪的四旋翼协同编队控制方法

针对多四旋翼编队飞行过程中对地面目标对峙跟踪、几何队形生成、稳固保持和协同抗干扰问题,设计了一种可应对外部环境干扰和气动参数不确定性的多四旋翼主从式协同目标跟踪方法。首先,建立存在外部干扰以及参数不确定性的四旋翼运动学/动力学模型;其次,基于Lyapunov导航向量场设计领航者的对峙跟踪航迹使得领航者以固定对峙半径实现对目标的盘旋跟踪;然后,构造多四旋翼分布式位置保持控制器,为后续姿态控制器构造提供必要的期望指令;最后,针对四旋翼外部环境干扰和气动参数不确定性设计基于自抗扰控制的多四旋翼姿态跟踪控制器。仿真结果表明所提方法可以在局部智能体通信的前提下实现对地面目标的对峙跟踪,显著改善四旋翼编队系统的抗干扰能力,提升干扰环境下多四旋翼编队几何构型的稳固性。     

控制力矩陀螺辅助的空间站大角度姿态机动

在推力器机动技术与零燃料机动(Zero Propellant Maneuver,ZPM)技术的基础上,提出了一种新的空间站大角度姿态机动技术概念——控制力矩陀螺辅助机动(Control Momentum Gyroscopes Assisting Maneuver,CMGs AM)技术。文章给出了CMGs AM燃料最优控制问题模型,在对燃料最优解控制结构分析的基础上,采用基于改进的伪谱结点法的求解策略,求解了CMGs AM燃料最优机动问题,与仅基于推力器机动的燃料最优解和空间站上的绕特征轴的常速率机动进行了比较,结果表明相对于推力器机动,CMGs AM技术更加节省燃料,并同时实现了机动始末动量管理模式的光滑连接;相对于ZPM机动,其机动时间大大缩短,同时具有更强的抵御干扰的能力。CMGs AM技术实现了对推力器技术与零燃料机动技术的高效综合,进一步丰富了空间站大角度机动技术。     

论生态价值视域下的思想政治教育

人与自然的关系在社会发展到今天,越来越得到人们的重视。以往的思想政治教育,人们总是把它的价值局限在政治价值、经济价值和文化价值上。高校的道德教育也是主要围绕如何处理人与人、集体和社会的关系等,而相对忽略了如何处理人与自然,包括人与其他生命体的关系的教育内容。正确认识人与自然的关系,对保护自然环境承担起责任,是当代大学生必须拥有的素质。     

Book reviews

The Political Economy of Military Spending in the United States, Alex Mintz (ed), London and New York: Routledge, 1992, pp x, 334; ISBN 0–415–07595–5

Penser La Guerre, Penser L'Economie, Christian Schmidt, (Paris: Odile Jacob, 1991), 350p.

Military Production and Innovation in Spain, Jordi Molas‐Gallart, Chur (CH): Harwood Academic Publishers, 1992, pp. vii, 212; ISBN 3–7186–5280–3     

Optimal versus required defence expenditure: The case of the Greek-Turkish arms race

The aim of this paper is to indicate the extent to which the arms race against Turkey, in which Greece and Cyprus have been entangled, imposes a defence expenditure burden that is tough for the two allies to bear. To do so we have resorted to evaluating the optimal military expenditure for the two countries, allied in the context of the Integrated Defence Doctrine, which is compatible with the constraints imposed by the resources of their economies. All experiments and scenarios examined lead to the conclusion that the current defence burden of the two allies seems to be driving their economies beyond capacity limits. The fact remains, however, that under the circumstances, a one-sided disarmament policy like the one currently followed by Greece, is a risky choice given that the long-term armament programmes pursued by Turkey, whose role in this arms race has been proven as leading, leave very small room to the Greek and Cypriot sides to reduce their own defence expenditure.     

GLOBALIZING REAGAN'S INF TREATY

When it was concluded more than a quarter century ago, the Intermediate-Range Nuclear Forces (INF) Treaty between the United States and the Soviet Union was hailed as a disarmament watershed, eliminating entire classes of nuclear missiles from the arsenals of the arms-racing Cold War superpowers. Over the intervening decades, there have been repeated calls to convert this legacy treaty into a new international norm against nuclear and missile proliferation by broadening it into a global prohibition on ground-launched ballistic and cruise missiles with ranges between 500 and 5,500 kilometers. Indeed, variations on this proposal have been knocking around for so long and with so little success that the entire concept has come to be dismissed by many knowledgeable insiders as something of a farce. Looking beyond its inauspicious pedigree, however, this viewpoint suggests that the time is opportune for Washington to give the idea a fresh look. Drawing on a detailed review of the history of “Global INF” and an analysis of the contemporary context, the author recommends that the Obama administration consider a simple declaratory approach that promises modest initial benefits, avoids previous and foreseeable pitfalls, and plausibly lays a solid foundation for achieving significant long-term progress.