炮兵侦察校射无人机连续定位校射的应用分析

炮兵部队是对面目标进行压制的有力武器,利用无人机定位校射系统,在短时间内实现对多目标的连续定位校射,使炮兵对面目标的支撑点进行有效地射击,达到拔点毁面的基础上提战术目的.对目前无人机定位校射系统的现状进行了综述,对实现连续定位校射存在的问题进行了深入的分析,在此提出了相应的解决办法.     

复杂军事网络的鲁棒性分析

分析了复杂军事网络具有BA复杂网络模型的特性,通过基于MATLAB语言对BA复杂网络模型的仿真,发现了网络中最大簇大小和簇参数对于不同攻击类型的变化规律,分析结论是辨认和停止基于局部拓扑信息的选择性攻击,可有效防护对于复杂军事网络的分布式攻击。     

运用传播动力学理论建立舆论战效果评估模型

舆论战效果评估,作为舆论战实施中的重要环节和基石,它对于科学指导与检验部队舆论教育训练,提高舆论战效果,增强官兵的心理素质,发展和完善具有我军特色的舆论战理论体系等都具有十分重要的现实意义。建立舆论战效果评估模型是实现舆论战科学评估的前提和基础。复杂网络传播动力学为舆论战效果评估模型提供了崭新的思路和方法。     

组合评价方法的装备维修性定性指标综合评价

针对在新型装甲装备设计阶段对其维修性进行综合评价的需求,结合装备设计阶段的其维修性指标验证与评价的特点,构建了基于设计阶段的装备维修性综合评价定性指标体系,通过分析线性加权与非线性加权两种综合评价方法的特点,提出了利用两种方法组合对装甲装备维修性进行综合评价的方法,并将该方法应用于实例验证,所得结果与物理样机的实验结果一致,证明了本方法的可行性和科学性,对基于设计阶段的新型装甲装备维修性综合评价有重要参考价值。     

An exact analysis of a joint production‐inventory problem in two‐echelon inventory systems

We consider a two‐echelon inventory system with a manufacturer operating from a warehouse supplying multiple distribution centers (DCs) that satisfy the demand originating from multiple sources. The manufacturer has a finite production capacity and production times are stochastic. Demand from each source follows an independent Poisson process. We assume that the transportation times between the warehouse and DCs may be positive which may require keeping inventory at both the warehouse and DCs. Inventory in both echelons is managed using the base‐stock policy. Each demand source can procure the product from one or more DCs, each incurring a different fulfilment cost. The objective is to determine the optimal base‐stock levels at the warehouse and DCs as well as the assignment of the demand sources to the DCs so that the sum of inventory holding, backlog, and transportation costs is minimized. We obtain a simple equation for finding the optimal base‐stock level at each DC and an upper bound for the optimal base‐stock level at the warehouse. We demonstrate several managerial insights including that the demand from each source is optimally fulfilled entirely from a single distribution center, and as the system's utilization approaches 1, the optimal base‐stock level increases in the transportation time at a rate equal to the demand rate arriving at the DC. © 2011 Wiley Periodicals, Inc. Naval Research Logistics, 2011     

Approximation methods for the analysis of a multicomponent,multiproduct assemble‐to‐order system

In this article, we consider the performance evaluation of a multicomponent, multiproduct assemble‐to‐order (ATO) system. Each component is managed independently using a base‐stock policy at a supply facility with limited production capacity and an infinite buffer. The arrivals of demands follow a multivariate Poisson process and unfilled demands are backlogged. Because exact analysis of the proposed system is not feasible, we propose two approximation methods which provide upper and lower bounds for various performance measures such as fill rate, average waiting time, and average number of backorders of the proposed system. Our computational experiments demonstrate the effectiveness of the two approximation methods under various system settings. © 2011 Wiley Periodicals, Inc. Naval Research Logistics, 2011     

M6高超声速静风洞的气动设计和结构研究

论述了发展高超声速静风洞设备与技术的重要性,对静风洞的基本特点进行了简要讨论.根据国内外发展静风洞的经验和成果,针对开展静风洞的实验技术及边界层稳定性问题研究的背景,提出一座M6高超声速静风洞(M6HQWT)的气动和结构设计,重点讨论了阀门管路、稳定段和喷管抽吸装置的设计特点.M6HQWT的设计马赫数为6.0,喷管出口...     

具有高效混洗模式存储器的可编程混洗单元

为向量DSP提出并设计了一种具有高效混洗模式存储器的可编程混洗单元,该结构能够使应用程序的混洗指令在执行时和通用寄存器或访存带宽等系统的关键资源分离,从而提高混洗单元的执行效率.采用区分不同混洗粒度和元素索引等方法对混洗模式所对应的开关矩阵进行了压缩,我们的存储效率高于当前其他方案.该混洗单元具有可编程的特点,应用程序...     

高炮旅(团)作战面向对象Petri网模型

概要分析了高炮旅(团)指挥控制与信息处理分发过程,对基本Petri进行扩展构建了面向对象Petri网模型,采用其分层次构建了高炮旅(团)作战OPN模型,较好地实现了对传统指控体制下高炮群作战与信息分发过程的静态与动态描述,为下一步具体仿真实现,找出现有传统指控体制存在的薄弱环节,进行相应改进提供了基础和依据。     

三维视景仿真中的主辅式多视口结构及其实现

针对大规模三维视景仿真中同时对场景全局和各目标模型细节观察的需求,设计了一种基于OpenGL的主辅式多视口场景渲染结构。通过对OpenGL视口定义、深度检测及投影变换等技术的灵活应用,该多视口结构在“导弹突防三维视景仿真系统”中得到了实现,有效地解决了多观察点同时兼顾的问题。