参数和非参数滤波算法在贝叶斯估计问题中的比较

在贝叶斯估计问题中常用的滤波算法有两大类,一类是适用于非线性问题的,在卡尔曼滤波算法基础上发展出来的各种参数滤波算法,如扩展的卡尔曼滤波,拟线性卡尔曼滤波及近年提出的基于Unscented变换的Unscented卡尔曼滤波算法等;另一类是基于蒙特卡洛仿真技术的非参数滤波算法--粒子滤波.两类跟踪算法在实际问题中都得到了广泛应用.从原理上对这两类算法中的四种具体算法进行了介绍,重点分析了每种算法的长处及不足,可为实际应用中算法的选择提供依据.     

复杂电磁环境下作战仿真系统指挥控制体系建模

复杂电磁环境是信息化战争的重要特征,指挥控制体系是作战体系的"中枢".提出基于信息衍化的复杂电磁环境下作战仿真系统指挥控制体系的建模方法,研究了复杂电磁环境下作战仿真系统的模型体系分析了指挥控制体系的关系,建立了初步的指挥控制体质模型.为复杂电磁环境下作战体系建模与仿真打下一定的理论与模型基础.     

20世纪六七十年代中国战备指导思想浅析

新中国成立后,一直面临着帝国主义的封锁、包围和战争威胁.特别是进入20世纪60年代中期以后,随着中国周边安全环境的日益恶化,新中国领导人开始强调要准备打仗,提出并确立立足于"早打、大打、打核战争"的战备指导思想.     

编队多平台协同防空系统及其多模型算法进展

介绍了多平台协同防空系统的组成及功能,并回顾了该系统目标跟踪中多模型算法的发展过程.重点对变结构多模型算法及其研究进展进行了论述,指出变结构多模型算法在目标跟踪中有广阔的应用前景.     

北伐战争中北伐军的美术宣传

中国共产党高度重视发挥美术的艺术武器作用,在北伐战争中,领导北伐军中广大美术工作者创作了一批揭露帝国主义和封建军阀、土豪劣绅的罪恶,号召人民起来革命的漫画、宣传画,有力地配合和支持了北伐战争的胜利进程。     

基于ADC模型的野战油料装备效能评估

油料装备在现代战争中的作用极为重要,开展油料装备效能评估有助于提高其效能.油料装备效能评估是一个比较新的课题,目前尚处于探索阶段.将ADC模型引入油料装备的效能评估,建立相应的评估模型;结合使用专家调查法确定其能力项,并以某型加油车为例进行了效能分析及计算;建立的模型具有较好的操作性,能够较好地反映油料装备的实际效能.该方法为油料装备效能评估提供了一条新思路.从评判实例可以看出油料装备的可靠性、维修性等对装备效能的影响很大,在油料装备的研制、使用、管理中应给予充分重视.     

Approximation schemes for single‐machine scheduling with a fixed maintenance activity to minimize the total amount of late work

We consider the problem of scheduling n independent and simultaneously available jobs without preemption on a single machine, where the machine has a fixed maintenance activity. The objective is to find the optimal job sequence to minimize the total amount of late work, where the late work of a job is the amount of processing of the job that is performed after its due date. We first discuss the approximability of the problem. We then develop two pseudo‐polynomial dynamic programming algorithms and a fully polynomial‐time approximation scheme for the problem. Finally, we conduct extensive numerical studies to evaluate the performance of the proposed algorithms. © 2016 Wiley Periodicals, Inc. Naval Research Logistics 63: 172–183, 2016     

The Crowe Memorandum,the Rebalance to Asia,and Sino-US Relations

Many contemporary academics and policy analysts have revisited the Anglo-German rivalry before 1914 to predict what may await China and the United States in the twenty-first century. However, few, if indeed any, have specified in what sense this comparison can be made. This paper attempts to fill this gap with a detailed analysis of the strategic parallels between the Anglo-German rivalry then and the China–US competition now through the lens of the Crowe Memorandum. The author argues that the basic parallel between the rise of Germany and the rise of China lies in the challenges they posed or pose to the dominant maritime power and system leader – Great Britain then and the United States today. This parallel also explains the similarity between the Triple Entente initiated by Great Britain prior to 1914 and the Rebalance to Asia launched by the United States in 2011. Furthermore, as in the case of the Anglo-German rivalry before 1914, the most crucial problem underlying the mounting China–US competition in recent years has been America’s deepening apprehension about the development of China’s anti-access/area-denial (A2/AD) and naval capabilities. This development, from the US perspective, is threatening to deprive the US of its most crucial instrument to influence the strategic equilibrium on the East Asian littorals. Based on the lessons of the Anglo-German rivalry prior to 1914, the essay also examines the potential for mitigating, if not eliminating, the mounting competition and misgivings between China and the United States.     

Military spending and growth: a small open economy stochastic growth model

The paper analyzes the effects of military spending on economic growth in a small open stochastic endogenous growth model involving the supply-side and demand-side effects produced by military spending. We show that a rise in the military spending affects economic growth through four channels, including the crowding-out effect, the spin-off effect, the resource mobilization effect, and the portfolio effect. The net effect which depends on these four channels is ambiguous. Hence, we demonstrate that there exists an optimal defense burden that maximizes the economic growth rate.     

双绝热近似下磁流体力学线性稳定性原理

本文得出了双绝热近似的磁流体力学能量积分关系式。分析表明这种磁流体力学系统是保守的,可以采用运动方程或能量原理方法分析系统的稳定性特性。本文从控制方程组出发讨论了线性稳定性的基本原理,指出纵向压力增值有助于系统的稳定性。