CPN在海上防空建模中的应用

着色 Petri网 (CP-网或 CPN )是一种面向图形的语言 ,用来设计、说明、模拟和验证系统。尤其适用于通信系统等同步和资源共享占有重要地位的系统。在通信协议、分步式系统、嵌入系统、自动生产系统、工作流分析、VL SI芯片等方面都有典型的应用。本文简单介绍了 CPN的发展过程和基本原理 ,重点就 CPN在海上防空系统建模仿真中的应用进行了探讨     

舰艇编队防空电子对抗战法评估模型研究

通过对舰艇编队防空电子对抗战法的决策过程和战法的层次结构进行分析和描述,探讨了适合解决舰艇编队防空电子对抗战法评价问题的层次分析模型。     

俄罗斯现代防空导弹体系的发展

论述了俄罗斯现代防空导弹体系 ,包括第 3,4代国土防空、野战防空和海军舰艇防空导弹体系的发展 ,对俄罗斯第 4代防空导弹体系的发展需求作了较详细的分析 ,介绍了俄罗斯现代防空导弹体系中几种典型防空导弹系统的主要战术技术性能 ,分析了俄罗斯防空导弹体系研制中的特点。     

单输入不确定系统离散变结构控制

研究单输入不确定离散时间系统的变结构控制设计问题.提出一种新形式的离散趋近律,它具有良好的动、静态特性,可有效消除由传统离散趋近律参数引起的抖振.设计扰动预估器以补偿不确定因素的影响,从而提高系统鲁棒性并进一步减弱抖振.仿真结果表明了所提设计方法的有效性.     

The value of information sharing in a two‐stage supply chain with production capacity constraints

We consider a simple two‐stage supply chain with a single retailer facing i.i.d. demand and a single manufacturer with finite production capacity. We analyze the value of information sharing between the retailer and the manufacturer over a finite time horizon. In our model, the manufacturer receives demand information from the retailer even during time periods in which the retailer does not order. To analyze the impact of information sharing, we consider the following three strategies: (1) the retailer does not share demand information with the manufacturer; (2) the retailer does share demand information with the manufacturer and the manufacturer uses the optimal policy to schedule production; (3) the retailer shares demand information with the manufacturer and the manufacturer uses a greedy policy to schedule production. These strategies allow us to study the impact of information sharing on the manufacturer as a function of the production capacity, and the frequency and timing in which demand information is shared. © 2003 Wiley Periodicals, Inc. Naval Research Logistics, 2003     

QFT在飞机纵向着陆控制中的应用

飞机进场着陆是飞机飞行的关键阶段,由于飞机和外界条件存在许多不确定因素,对飞机着陆精度和安全性有很大影响。QFT是在相频平面上的一种图形化的鲁棒控制系统设计方法。采用QFT理论设计了某型飞机的纵向着陆控制律,并应用了推力综合控制稳定飞机下滑时的速度。仿真结果显示,飞机着陆实现了对期望着陆轨迹的精确跟踪,满足了着陆控制的要求。     

一类两种群竞争离散系统的持久性

讨论了密度制约的两种群竞争离散系统{x（n＋1）=x（n）exp｜r1-a1x（n）-b1y（n）｜ y（n＋1）=y9n）exp｜r2-a2x（n）-b2y（n）｜的初值解的有界性及系统的持久性。通过适当构造解的最终有界区域,证明了当b1/b2〈r1/r2/〈a1/a2时,系统是强持续生存的。这里ri,ai,bi（i=1,2）均为正的常数。     

基于联合作战能力的装备体系需求生成过程研究

针对武器装备建设过程中需求不够明确、不够准确和不够科学的现状,从联合作战的角度出发,以“基于能力”的武器装备建设思想为指导,对“任务体系→能力体系→装备体系”的装备体系需求生成过程进行了深入研究,并与传统装备体系需求生成过程进行了比较。     

A two‐echelon inventory‐location problem with service considerations

We study the problem of designing a two‐echelon spare parts inventory system consisting of a central plant and a number of service centers each serving a set of customers with stochastic demand. Processing and storage capacities at both levels of facilities are limited. The manufacturing process is modeled as a queuing system at the plant. The goal is to optimize the base‐stock levels at both echelons, the location of service centers, and the allocation of customers to centers simultaneously, subject to service constraints. A mixed integer nonlinear programming model (MINLP) is formulated to minimize the total expected cost of the system. The problem is NP‐hard and a Lagrangian heuristic is proposed. We present computational results and discuss the trade‐off between cost and service. © 2009 Wiley Periodicals, Inc. Naval Research Logistics 2009     

炮控伺服系统自抗扰控制器优化设计

针对自抗扰控制器参数难于整定的问题,给出了一种基于自适应变异粒子群优化算法的炮控伺服系统自抗扰控制器优化设计方法.该算法结构简单,具有良好的全局收敛性,充分发挥了自抗扰控制器的控制性能.通过对某炮控伺服系统的仿真研究,表明了该设计方法的有效性.