舰炮测量距离方向法对海射击改进及误差分析

针对新型舰艇只装备一座主炮无法进行集火射击,原有的测量距离方向偏差对海射击的方法已不再适用,对原有的观测射击方法进行了改进,分别记录每发弹出炮口时刻预测的目标位置,利用其平均值进行代替原齐射弹丸出炮口时刻的目标预测位置。分析结果表明,该方法达到了原观测距离方向法的齐射的射击修正效果。     

炮兵风险距离的仿真计算方法

现代战场非线性趋势愈加明显,炮兵火力对敌我双方以及平民都可能造成毁伤。合理确定炮兵风险距离,控制对非敌人员的杀伤风险是炮兵火力运用的重要内容。提出了炮兵风险距离的概念,并给出了仿真计算方法。首先,给出了炮兵风险距离的概念,并解释了其仿真计算原理。然后,建立了蒙特卡洛仿真模型。最后,结合实例验证了仿真计算方法的正确性。     

关于武警学院开展现代远程教育的探讨

利用武警学院丰富的教育信息资源，依托公安网探讨开展现代远程教育的模式与方法，构筑新时代公安现役官兵终身教育体系，提高教学质量，加快课程建设。     

基于最大后验风险的多层Bayes方法

为了对指数型产品进行可靠性鉴定,首先给出了失效率的多层先验分布,然后从最大后验风险的角度,运用Bayes方法,制定出可靠性鉴定试验方案.按照此鉴定试验方案,缩短了试验时间,从而降低了鉴定试验所需的费用.     

Asia-Pacific Demand for Military Expenditure: Spatial Panel and SUR Estimates

This article investigates the demand for military expenditure for a sample of key Asia-Pacific countries. Spatial panel demand estimates are presented for three joined spatial units using a fixed-coefficient spatial lag model based on a two-step efficient GMM estimator. Spatial autoregression estimates are next presented for 1991–2015, founded on alternative kinds of country connectivities, such as contiguity, inverse distance, discrete distance, and power-projection considerations. Finally, 11 select countries’ demands for defense equations are estimated using seemingly unrelated regressions. From alternative perspectives, these estimated models indicate how Asia-Pacific countries respond to the defense spending of other countries. In the spatial runs, free riding is prevalent despite the growing military might of China, which apparently is not generally viewed as a threat. For the sample period, the projection of Chinese or American power is a relevant spatial factor. The main threat is reflected in non-U.S. allies’ reaction to U.S. allies’ defense spending during 1991–2015 and to Chinese defense spending after 2002.     

一种基于证据间距离和信息熵的证据组合方法?

针对改进的基于证据间距离的组合方法，首先计算证据间距离并求出各个证据的支持度和可信度，选取支持度高的作为较可信证据，其次引入证据信息熵，计算修正系数，对这些证据的可信度进行修正，将可信度作为权重，进行证据的加权平均，再利用Dempster组合规则对所有证据进行融合。算例表明，该方法比现有的方法更加有效。     

线阵CCD在机械微变距离测量中的应用

介绍了一种应用线阵CCD测量柴油机曲轴臂距差的原理和方法 .讨论了光杠杆原理在此测量系统中的应用 ,并结合实际分析了系统产生非线性误差的原因 ,给出了此测量系统非线性的处理方法 .     

利用极大值原理求解飞行器飞行区域

利用现代最优控制理论极大值原理 ,考虑给定约束条件下所有可能的控制方案 ,确定了一定时间内飞行器飞行区域。     

Statistical analysis of exponential lifetimes under an adaptive Type‐II progressive censoring scheme

In this article, a mixture of Type‐I censoring and Type‐II progressive censoring schemes, called an adaptive Type‐II progressive censoring scheme, is introduced for life testing or reliability experiments. For this censoring scheme, the effective sample size m is fixed in advance, and the progressive censoring scheme is provided but the number of items progressively removed from the experiment upon failure may change during the experiment. If the experimental time exceeds a prefixed time T but the number of observed failures does not reach m, we terminate the experiment as soon as possible by adjusting the number of items progressively removed from the experiment upon failure. Computational formulae for the expected total test time are provided. Point and interval estimation of the failure rate for exponentially distributed failure times are discussed for this censoring scheme. The various methods are compared using Monte Carlo simulation. © 2009 Wiley Periodicals, Inc. Naval Research Logistics, 2009     

履带车辆动力性仿真研究

为仿真履带车辆动力性,建立了动力性评价指标的仿真模型,并以某型车为实例,应用Matlab语言编程计算得出理论值,通过与试验值比较验证了模型的有效性和准确性。