具有终端约束的制导炸弹模糊变结构制导律设计

针对INS/GPS制导炸弹对地面目标的精确打击问题,提出带落角约束的模糊变结构制导律。在变结构制导律的基础上,引入终端落角约束项,应用模糊规则对所设计制导律中的变结构开关项系数增益进行在线调节。仿真结果表明,在对地面目标进行攻击时,该制导律降低变结构控制系统的抖振,同时满足制导精度和期望落角的要求,具有有效性和鲁棒性。     

US warfare in Somalia and the trade-off between casualty-aversion and civilian protection

This article examines the ways in which the two normative concerns of casualty-aversion and civilian protection influenced US military strategy in the particular context of the asymmetric conflict in Somalia in the early 1990s. The article critically evaluates US military operations through the prism of international humanitarian law and examines whether American forces started prioritizing casualty-aversion over the safeguarding of Somali civilians. Finally, by drawing on emerging moral guidelines (such as Michael Walzer's idea of ‘due care’), the article examines whether lower numbers of Somali civilian deaths could have been achieved if marginal increases to the risks faced by US soldiers had been accepted.     

军事法基市原则的反思与重构

军事法的基本原则是军事法律规范规律性的体现 ,是军事法制定的基础 ,是军事法适用的准则。军事法基本原则的概念及其特征如何 ?军事法基本原则的体系如何构建 ?军事法应该包括哪些基本原则 ?军事法的每个原则的具体内涵应该是什么 ?这些都是值得军事法学界予以关注和探讨的重大学术问题     

离散变速趋近律抖振机理及鲁棒性研究

研究基于离散变速趋近律的变结构控制设计问题.利用不等式形式到达条件研究变速趋近律的抖振机理,并对其鲁棒性进行分析.研究结果表明,只要不确定因素有界,即可保证闭环系统的鲁棒稳定性,而通过调整变速趋近律自身参数,可以避免抖振并使系统具有良好的动态品质.将理论成果用于某型船舶航向自动舵的设计,实验结果证实了它的有效性.     

论武警法是独立的部门法

武警法究竞是否独立的部门法,是由来已久且必须回答的重要命题。《中华人民共和国人民武装警察法》的颁布为武警法的独立性提供了实证。武警法与相关法律部门,如军事法、行政法、警察法有本质的区别。武警法是我国法律体系中具有独立地位的部门法。     

一种拦截机动目标的最优制导律设计

引入伪控制变量的概念,建立了线性化的描述导弹与目标相对运动的状态方程.应用线性二次型最优控制理论和改进剩余时间的计算方法,提出了一种拦截高机动目标的最优制导律.通过与比例导引律在平面拦截过程中的仿真结果对比分析,表明所提出的最优制导律在拦截机动目标时更为有效.     

加强执法规范化建设的几点思考

加强执法规范化建设是当前和今后一个时期搞好消防监督执法工作的主要任务。结合多年的消防监督执法工作实践,归纳了当前消防监督执法工作中存在的主要问题,分析了存在问题的主要原因,提出了加强执法规范化建设的措施。     

消防行政强制研究

汇总分析了消防行政强制的特征和类型,研究了消防监督工作中常见的行政强制措施和行政强制执行的一般程序,探讨了有效应用消防行政强制这一手段的基本方法和重大意义。     

公安消防机构推行说理执法探索

探索推行说理执法是公安机关消防机构创新社会管理,不断改进和加强消防监督执法工作,提高理性、平和、文明、规范执法能力的重要举措。从说理执法的内涵及推行说理执法的重大意义,说理执法应当把握的指导思想、基本原则、任务和要求等方面,对推行说理执法作了初步探讨。     

Research on fuze microswitch based on corona discharge effect

Abnormal voltages such as electrostatic, constant current, and strong electromagnetic signals can erro-neously trigger operation of MEMS pyrotechnics and control systems in a fuze, which may result in casualties. This study designs a solid-state micro-scale switch by combining the corona gas discharge theory of asymmetric electric fields and Peek's Law. The MEMS switch can be transferred from "off" to"on" through the gas breakdown between the corona electrodes. In the model, one of the two electrodes is spherical and the other flat, so a non-uniform electric field is formed around the electrodes. The theoretical work is as follows. First, the relation among the radius of curvature of the spherical electrode, the discharge gap, and the air breakdown voltage is obtained; to meet the low voltage (30-60 V) required to drive the MEMS switch, the radius of curvature of the spherical electrode needs to be 10-50 μm and the discharge gap between the two electrodes needs to be 9-11 μm. Second, the optimal ratio ε is introduced to parameterize the model. Finally, the corona discharge structural parameters are determined by comparing the theoretical and electric field simulation results. The switch is then fabricated via MEMS processing. A hardware test platform is built and the performing chip tested. It is found that when the electrode gap is 9 μm, the electrostatic voltage is at least 37.3 V, with an error of 2.6% between the actual and theoretical air breakdown voltages. When the electrode gap is 11 μm, the electrostatic voltage is at least 42.3 V, with an error of 10.5% between the actual and theoretical air breakdown voltages. Both cases meet the design requirements.