Research on design and firing performance of Si-based detonator

For the chip integration of MEMS (micro-electromechanical system) safety and arming device, a miniature detonator needs to be developed to reduce the weight and volume of explosive train. A Si-based micro-detonator is designed and fabricated, which meets the requirement of MEMS safety and arming device. The firing sensitivity of micro-detonator is tested according to GJB/z377A-94 sensitivity test methods: Langlie. The function time of micro-detonator is measured using wire probe and photoelectric transducer. The result shows the average firing voltage is 6.4 V when the discharge capacitance of firing electro-circuit is 33 μF. And the average function time is 5.48 μs. The firing energy actually utilized by Si-based micro-detonator is explored.     

非标准气象条件弹道自动修正的研究

针对某强击机瞄准具轰炸性能改进装置,介绍非标准气象条件下弹道修正原理工作式的建立、修正电路的设计及其与瞄准具的交联关系     

多维作战空间陆战兵力作战仿真方法

为探讨在登陆作战中陆战兵力作战能力问题,加强对现代作战的定量分析,针对武器装备作战能力向多维作战空间扩展的实际,使用多维战斗力指数和生命力指数表示作战单位的多维作战能力。在分析的基础上,建立了多维作战空间中的陆战兵力作战仿真方法,该方法的核心是将多维作战能力指数和生命力指数运用到兰彻斯特方程中。结合登陆作战中的两个主要阶段,分析了海上突击时对双方战斗力的影响,并通过作战仿真方法对算例进行了求解。分析结果表明,该方程能够描述登陆作战中的主要战斗行动,可以作为作战运筹分析的参考依据,适用于登陆作战仿真系统。     

集热罩对喷头启动时间影响的数值模拟研究

通过分析大空间场所的特点,并选择FDS软件作为研究工具分别对集热罩边长为200、400、600、800mm;边缘厚度为40、50、60mm;喷头距火源的垂直高度为6、7、8、9m;喷头在火源正上方以及与火源的水平间距为2.2m时喷水灭火系统喷头启动时间进行模拟,通过对比分析集热罩对大空间场所中喷头的作用效果,为集热罩的设计提供指导。     

利用时间窗权重进行航迹关联

提出一种利用传感器测量数据的时间窗权重进行航迹关联的方法,将目标运动状态的多维向量(如距离、方位角、俯仰角等)分解为多个一维状态标量;根据每个状态标量与时间的关系,提取两条航迹的共同测量时间区间,将其划分为若干个时间窗,计算对应时间窗内的权重;根据时间窗权重差计算每一个状态标量的航迹相似度;应用DS理论或Bayes理论进行航迹关联决策。     

无源探测定位网

介绍了无源探测定位网的特点和分类,对无源探测定位网的关键技术进行了研究,并对无源探测定位网的发展前景进行了预测.     

Algorithms for computing waiting time distributions under different queue disciplines for the D-BMAP/PH/1

A queueing system characterized by the discrete batch Markovian arrival process (D-BMAP) and a probability of phase type distribution for the service time is one that arises frequently in the area of telecommunications. Under this arrival process and service time distribution we derive the waiting time distribution for three queue disciplines: first in first out (FIFO), last in first out (LIFO), and service in random order (SIRO). We also outline efficient algorithmic procedures for computing the waiting time distributions under each discipline. © 1997 John Wiley & Sons, Inc. Naval Research Logistics 44: 559–576, 1997     

Analysis of a finite‐buffer bulk‐service queue with discrete‐Markovian arrival process: D‐MAP/Ga,b/1/N

Discrete‐time queues with D‐MAP arrival process are more useful in modeling and performance analysis of telecommunication networks based on the ATM environment. This paper analyzes a finite‐buffer discrete‐time queue with general bulk‐service rule, wherein the arrival process is D‐MAP and service times are arbitrarily and independently distributed. The distributions of buffer contents at various epochs (departure, random, and prearrival) have been obtained using imbedded Markov chain and supplementary variable methods. Finally, some performance measures such as loss probability and average delay are discussed. Numerical results are also presented in some cases. © 2003 Wiley Periodicals, Inc. Naval Research Logistics 50: 345–363, 2003.     

Java语言在军用软件中的应用及实现方法

简要地分析了军用软件的现状和需求、Java语言的体系结构和系统特性、Java语言实时性的实现方法等。实时军用软件对开发语言的实时性要求很高,但是标准规范的Java语言本身不满足实时性能,因此,要想把Java语言应用到实时军用软件中必须首先解决Java语言的实时性的问题。     

海洋移动目标多模型运动预测方法

分析海洋移动目标的运动特征,提出了预测前插值的灰色预测方法,改进了航迹变更预测和潜在区域预测模型。通过集成匀速运动预测、航迹变更预测、基于航迹的预测和潜在区域预测,提出多模型运动预测方法及其模型参数配置依据,根据滑动时间窗口中的观测数据与预测值的统计比较,评价不同预测方法的近期预测效果,决策下阶段适宜选择的预测方法。仿真实验表明多模型运动预测比使用单一运动预测方法降低预测风险,提高了预测精度。