基于DOB和二自由度控制器的某火炮稳定控制系统设计

火炮稳定控制系统性能会受到如路况、火炮射击时产生的冲击力矩等外部扰动以及摩擦力矩变化、测量噪声、转动惯量变化等内部参数摄动的影响。针对此问题,引入一种DOB观测器和二自由度控制算法,来减少摩擦对系统性能的影响,提高系统对载体扰动的隔离能力。仿真和实验结果表明,所提出的算法可以有效提高系统的稳定精度和速度伺服性能。     

无线传感网和神经网络的民用火药贮存在线监测系统

针对目前绝大多数火药仓库的温度、湿度控制由于采用人工操作导致对温湿度不能实时精确监控从而导致火药失效的问题,设计了一种基于无线传感网和神经网络的火药贮存在线监测系统。该系统将无线传感网络终端节点实时收集到环境温度和水分信息传给神经网络控制器,根据神经网络控制模型实时调节火药贮存温湿度控制设备的各个参数,实现对火药贮存环境温湿度的自动化和实时精确控制,提高火药贮存的可靠性和经济效益。     

Defensive weapons and star wars: a supergame with optimal punishments

We model the perspective faced by nuclear powers involved in a supergame where nuclear deterrence is used to stabilise peace. This setting allows us to investigate the bearings of defensive weapons on the effectiveness of deterrence and peace stability, relying on one-shot optimal punishments. We find that the sustainability of peace is unaffected by defensive shields if the latter are symmetric across countries, while asymmetric endowments of such weapons have clear-cut destabilising consequences.     

The cyber conceptual framework for developing military doctrine

Militaries rely on secure communications. Despite the permeation of cyber-systems throughout the operational environment, there is little readily available doctrine on cyber-warfare. Doctrine that does exist has not been coherently integrated. This paper introduces a Cyber Conceptual Framework, consisting of five questions pertinent to the future use of cyberspace. The authors enunciate a definition of cyberspace, expand on existing military doctrine to reject the conceptualisation of cyberspace as a domain, define cyber-conflict, define cyber-attack and describe the four components and five levels of a cyber-attack. This work develops a common framework from available doctrine and a lexicon for future discussion.     

Tipping the scales: short-term interventions and counterinsurgency

Particularly in African operations, United Nations (UN) peacekeeping forces have faced significant problems in restoring stability. In at least a few situations, unilateral national military interventions have been launched in the same countries. In the cases of Sierra Leone and Côte d’Ivoire, the British and French interventions respectively played a significant role in re-establishing stability. Lessons from these operations suggest that if effective coordination and liaison channels are established, such hybrid unilateral-UN missions can in fact be more successful than “pure” peace operations.     

Strategic hedging in Indonesia’s defense diplomacy

With the rapid pace of regional arms modernization and unresolved territorial disputes, Indonesia is increasingly susceptible to the impact of emerging great power rivalry in Asia-Pacific. Rather than pursuing a robust military build-up, Indonesian policy-makers assert that diplomacy is the country’s first line of defense. This article argues that defense diplomacy serves two agenda of Indonesia’s hedging strategy – strategic engagement and military modernization. This way, Indonesian defense and security officials seek to moderate the impact of geopolitical changes while maintaining the country’s defensive ability against regional uncertainties.     

Stolen trauma: why some veterans elaborate their psychological experience of military service

The embellishment of a warrior biography has a long history but examples of veteran elaboration of traumatic experience have become increasingly apparent. Although legislative change in the UK has removed the penalties for fabrication and a progressive decline in the military footprint may have increased the likelihood of such false trauma narratives, a paradigm shift in explanations for mental illness underpins this phenomenon. The recognition of post-traumatic stress disorder (PTSD) in 1980, followed by studies to identify risk factors, led to a greater appreciation of psychological vulnerability. As a result, the use of shame to discourage acts formerly labelled as “cowardly” or “lacking in morale fibre” is no longer considered appropriate. Recent conflicts in Iraq and Afghanistan generated popular sympathy for service personnel, whilst media focus on PTSD has led the UK public to believe that most veterans have been traumatised by their tours of duty.     

无人作战系统发展对陆军建设影响

无人作战系统已成为影响现代战争的重要手段,本文针对无人作战系统特点和趋势,详细分析了对陆军作战的影响,并就提高思想认识、组织核心技术攻关、加强专业人才建设、开展无人系统研究,对陆军无人作战系统建设提出了思考。     

关于颠覆性技术发展的理性认知

随着美国揭开第三次"抵消战略"重点发展对象的面纱,研发"颠覆性技术"已成为主要军事大国获得技术优势的手段。当前世界新一轮科技革命、产业革命、军事革命交织并行,给颠覆性技术提供了难得的良好机遇。但当我们看见颠覆性技术引领时代新型武器装备潮流发展的同时,也应理性看待其背后潜藏的风险。通过概述总结颠覆性技术研究现状,分析其推动的科技内生性变革,从本质上对其进行理性认知。研究表明,发展颠覆性技术必须积极作为,谨慎对待。     

高功率微波车辆迫停的效应机理分析

通过分析车辆电子控制单元输出的点火开关和燃油喷射信号波形在高功率微波辐射条件下的演变过程,阐明了高功率微波致使车辆发动机熄火的原因。研究结果表明,电子控制单元受到微波辐射扰乱后,点火开关信号发生意外丢失,燃油喷射信号脉冲重复周期迅速缩短,造成发动机气缸内喷入过量燃油,火花塞无法点燃油气混合物,迫使发动机转速下降甚至熄火。通过分析车辆发动机的点火系统工作原理,提出了根据监测车体辐射电磁信号获取车辆易受攻击的敏感频段的试验思路。