基于无标度网络的防空反导系统构建

构建高效的防空反导系统是防空反导作战的基础。运用复杂网络理论,建立基于无标度网络防空反导系统模型,并将其统计特征同基于WS小世界网络的模型进行了比较,得出基于无标度网络的防空反导系统有更好鲁棒性和抗毁性,对网络化防空反导系统的构建有一定参考价值。     

基于IData的飞行训练模拟器座舱设备仿真

采用图形仪表的方法仿真飞行训练模拟器座舱设备是提高系统性价比、可靠性、维修性的重要手段。本文分析了虚拟仪表开发软件IData的特点,归纳总结了在飞行仿真中的开发流程,深入研究了IData关键技术。经在多项产品开发应用中表明,使用IData平台开发的软件,画面逼真、响应实时、可扩展性强、性能稳定,满足专用设备和飞行训练模拟器的使用要求。     

舰载火箭炮子母弹射击火力分配模型

摘 要：由于舰载火箭弹的弹道特性与普通身管炮弹有着明显的差异,传统的舰炮射击效力计算及火力分配方法不适用于舰载火箭炮。结合舰载火箭弹弹道特点,分析了其射击误差,探讨了集群目标的简化处理方法,提出了一种基于蒙特卡洛法的舰载火箭炮对岸射击最优效力射火力分配计算模型。通过举例分析表明,该方法切实可行,利用该模型可以提高射击指挥员指挥决策的科学性。     

无人作战飞机近距对抗占位策略与方法

针对无人机作战中前置追踪占位法存在导弹发射条件苛刻且目标机动时成功率锐减和离散对策占位法应用局限性较大等问题,提出一种无人作战飞机近距对抗占位策略与导引方法。该占位策略为解算无人机近距对抗占位的伪跟踪点,并设计一种三维变结构导引律,引导无人机完成近距作战占位机动。仿真结果表明,该占位策略与导引方法快速有效,满足无人机近距对抗时的战术指标要求。     

Cinematic representations of the Mexican Narco War

This essay provides an overview of the eras of Mexican cinema followed by an analysis of 10 Spanish-language narco cinematic representations, an overview of the eras of American cinema followed by an analysis of 10 English language narco cinematic representations, and a conclusion that compares and contrasts the Mexican and US narco war cinematic experience. Due to divergent national trajectories – Mexico is engulfed in narco violence and corruption while the United States is not – more differences than similarities exist between these national cinematic genres. Dark spirituality themes are also increasingly evident in more recent narco war films.     

冗余空间机器人基座姿态调整的笛卡尔路径规划

空间机器人系统的机械臂和基座之间存在着动力学耦合,为了保证笛卡尔路径规划的同时可以调整基座的姿态,文章以冗余自由度空间机器人为研究对象,首先建立了空间机器人系统的运动学方程;由于存在一定的冗余度,通过将基座姿态运动方程与广义雅可比矩阵组合得到扩展后的雅可比矩阵,实现了基座和机械臂运动的协调规划;最后讨论了基座姿态无扰路径规划,并与零空间法进行了对比。建立平面三自由度空间机器人系统,分别采用零空间法和扩展雅可比矩阵法进行了基座姿态无扰路径规划和基座姿态跟踪路径规划,仿真结果验证了方法的有效性。     

舰炮武器系统最大有效射程研究

舰炮武器系统最大有效射程是指系统在规定的射击条件下,对规定目标,使用规定弹药射击时能达到规定射击效力指标要求的最大作用距离。系统使用不同的弹药对付不同类型目标,最大有效射程是不同的。本文界定了舰炮武器系统最大射程和最大有效射程的关系,从舰炮武器系统弹丸存速、毁伤能力、系统精度及系统稳定性等方面入手,分析了影响系统对空和对海(岸)最大有效射程的各种因素,并提出了确定最大有效射程的方法和准则,为舰炮武器系统设计及使用提供了有力的理论基础。     

陆军作战仿真模型标准化研究

模型标准化是规范仿真模型开发,避免低水平重复建设的重要环节。在对陆军作战仿真模型体系进行分析和归纳的基础上,对仿真模型架构、模型构建、模型管理以及模型交互进行了标准化设计,提出了基于插件机制的“柔性”仿真模型架构、仿真实体组件化建模机制、采用“方案－单元－实体－组件”方式的仿真实体管理机制以及采用消息驱动、事件订购和分发方式的模型交互机制。     

A characterization of optimal base‐stock levels for a multistage serial supply chain

In this article, we present a multistage model to optimize inventory control decisions under stochastic demand and continuous review. We first formulate the general problem for continuous stages and use a decomposition solution approach: since it is never optimal to let orders cross, the general problem can be broken into a set of single‐unit subproblems that can be solved in a sequential fashion. These subproblems are optimal control problems for which a differential equation must be solved. This can be done easily by recursively identifying coefficients and performing a line search. The methodology is then extended to a discrete number of stages and allows us to compute the optimal solution in an efficient manner, with a competitive complexity. © 2016 Wiley Periodicals, Inc. Naval Research Logistics 63: 32–46, 2016     

Brazilian National Defence Policy: foreign policy,national security,economic growth,and technological innovation

ABSTRACT

With the world’s ninth largest economy and comprising nearly 60% of South America’s GDP, 47% of its territory, and 49% of its population, Brazil has become a regional power and an important actor in world affairs over recent decades. This scenario has led the government to re-evaluate its role in the world order, resulting in the enactment of the National Defence Policy, whose objective was to consolidate the country as a regional power while at the same time addressing national security issues, promoting economic development through a series of defence programmes, restructuring the defence industrial base, fostering innovation through technology and knowledge transfer to Brazil, and indigenous research and development. However, the policy’s implementation suffers from several challenges discussed in this article, which may test the capability and competence of Brazilian policymakers, military, industrialists, and other individuals and organisations involved in its implementation.