OODA-L模式下的智能无人集群作战仿真建模框架

介绍了智能无人集群作战的相关概念,为反映智能无人仿真实体的自主能力和适应能力,提出将学习过程显性化的观察-判断-决策-行动-学习(Observe, Orient, Decide, Act and Learning, OODA-L)模式,并进一步扩展为适用于集群协同的Co-OODA-L模式。在智能无人仿真实体的总体描述上,采用马尔可夫决策过程进行数学抽象处理,提出智能无人Agent的三域分层结构。为体现智能无人集群作战的自主协同、分布式等特点,提出了利用人工神经网络将可变数量的智能无人Agent融合为同构或异构集群进行协同作战建模的体系结构。     

定位定向导航系统轴角/数字转换的设计

介绍自行火炮定位定向导航系统中一种实现轴角-数字转换的设计方案。叙述了多极旋转变压器和旋转变压器/数字转换器AD2S80A的特点、工作原理及其粗精结合方法,给出了基于嵌入式计算机PC/104与AD2S80A芯片实现轴角-数字转换的接口电路与工作时序图,以寻北仪的转位控制为例,说明了该转换方法在自行火炮定位定向导航系统中的具体应用。     

视场角限制下导弹协同攻击导引律设计

为实现多枚导弹协同攻击目标，提出视场角限制下攻击时间角度控制导引律。通过在传统比例导引上增加两项偏置项，推导出一种新型攻击时间和角度控制的导引律，并用Lyapunov理论证明其稳定性。针对导弹大机动下视场角可能超过导引头视场角范围而丢失目标的问题，将用于角度控制的偏置项分为三个阶段，设计了导引头视场角限制下的导引过程。仿真结果表明：所设计的导引律可以将视场角限制在导引头视场角范围内，实现不同位置下的多枚导弹以指定角度同一时间攻击目标，达到导弹协同攻击的效果。     

网络化多平台协同控制与决策系统总体设计框架

针对单一平台在探测能力和信息获取方面的局限性,提出构建基于空中、地面、水中平台的多平台人机协同控制与决策系统的体系结构,该系统的特点是有人参与决策,可实现有人平台和无人平台的协同。分析了地面指挥控制与决策中心及各平台应具有的功能,并对人机交互软件界面进行了总体设计。给出了一个典型的应用场景,分析了其工作原理及多平台协同跟踪与决策过程,验证了所提系统体系结构的灵活性和合理性。     

Impacts of sequential acquisition,market competition mode,and confidentiality on information flow

We investigate information flow in a setting in which 2 retailers order from a supplier and sell to a market with uncertain demand. Each retailer has access to a signal. The retailers can disclose signals to each other (horizontal information sharing), while the supplier can solicit signals by offering retailers differential payments as incentives for signal disclosure (vertical information acquisition). In the base setting, market competition is in quantity, and a retailer can fully infer the signal that the other retailer discloses to the supplier. We show that the supplier prefers to sequentialize the procedure for information acquisition. Moreover, vertical information acquisition by the supplier is a strategic complement to horizontal information sharing between the retailers to establish information flow. In the equilibrium, the retailers have no incentive to exchange signals, but system wide information transparency can be realized through a combination of information acquisition and inference. We further study the signaling effect, whereby the supplier utilizes wholesale pricing as an instrument to affect the retailers' inference of the shared signals, and price competition to explore their impacts on the supplier's preference for sequential acquisition and the sustainability of information flow.     

无源时差定位布站形式对定位精度的影响

用时差法对空中机动目标进行定位,地面至少需要四个基站工作,而地面基站的布站形式对定位精度有很大的影响.通过计算机对时差定位的三种基本布站形式进行分析和仿真,得出了目标定位精度与布站方式的关系,即在相同的测量条件下达到最优的测量结果.通过建立时差定位模型,分析影响定位精度的各因素,得出了不同布站情况下的几何精度因子图,为无源时差定位系统的布站提供理论指导.     

智能舰艇编队指挥控制系统体系结构设计

针对舰艇编队指挥控制系统协同作战自协同的需要,运用多智能体技术探索舰艇编队指控系统体系结构设计问题.提出了一种由指挥Agent和协同控制Agent构成的智能舰艇编队指挥控制系统,描述了其组织结构,分析了面向任务的协同作战任务分解和分配过程,完成了智能舰艇编队指控系统体系结构的顶层设计.对多Agent技术在舰艇编队指控系统中的应用有一定的参考价值.     

编队协同防空制导交接仿真研究

协同制导是编队协同防空作战中的一种重要作战手段.制导交接又是协同制导中的关键环节.对制导交接方式的选择进行了说明,分析了理想和实际交接区的范围,对水平交接区进行了仿真分析,对协同制导时的航路规划提出了要求.结果表明,只有交接平台以及导弹的相对位置以及导弹航路满足一定要求,才能顺利完成制导交接.     

Competing with channel partners: Supply chain conflict when retailers introduce store brands

Private‐label products are of increasing importance in many retail categories. While national‐brand products are designed by the manufacturer and sold by the retailer, the positioning of store‐brand products is under the complete control of the retailer. We consider a scenario where products differ on a performance quality dimension and we analyze how retailer–manufacturer interactions in product positioning are affected by the introduction of a private‐label product. Specifically, we consider a national‐brand manufacturer who determines the quality of its product as well the product's wholesale price charged to the retailer. Given the national‐brand quality and wholesale price, the retailer then decides the quality level of its store brand and sets the retail prices for both products. We find that a manufacturer can derive substantial benefits from considering a retailer's store‐brand introduction when determining the national brand's quality and wholesale price. If the retailer has a significant cost disadvantage in producing high‐quality products, the manufacturer does not need to adjust the quality of the national‐brand product, but he should offer a wholesale price discount to ensure its distribution through the retailer. If the retailer is competitive in providing products of high‐quality, the manufacturer should reduce this wholesale price discount and increase the national‐brand quality to mitigate competition. Interestingly, we find the retailer has incentive to announce a store‐brand introduction to induce the manufacturer's consideration of these plans in determining the national‐brand product quality and wholesale price. © 2010 Wiley Periodicals, Inc. Naval Research Logistics, 2010     

不确定情况下协同空战目标分配方法

现代空战环境下出现的大量不确定信息, 现在常用的协同目标分配模型都没有考虑到这种情况.针对这种情况,将随机规划引入到协同空战目标分配研究中,在一般期望值模型的基础上,建立了多机空战协同目标分配期望值模型,并利用随机模拟、神经网络和遗传算法结合而成的混合智能算法来求解该期望值模型.2∶4协同空战仿真结果表明该模型的有效性.