基于网络中心战的空战仿真多Agent理论实现

概述了基于网络中心战的空战网络结构和系统特性,讨论了基于网络中心战空战多Agent系统结构,分析了基于网络中心战的空战想定、组织结构和空战过程,利用分布式多Agent系统理论对其进行了描述,实现了多Agent系统理论的空战过程仿真模型;仿真结果表明,基于网络中心战的空战飞机的作战效能优于基于平台中心战的蓝方作战飞机,赢得了先发射导弹的机会,提高了导弹武器系统的杀伤概率。     

基于Agent的空防作战系统建模仿真方法研究

空防作战系统是一类复杂的军事作战系统.从军事作战系统的主导因素入手,讨论了传统研究方法的局限性,进而提出使用基于Agent的建模仿真(ABMS)方法研究空防作战系统的思路,并根据空防作战系统建模仿真应用的需要对ABMS进行了改进:建立了层次化的ABMS建模框架,为解决对作战动态过程的建模而引入了事件的扩展概念及其分析方法.然后介绍了一个空防作战系统建模仿真研究的完整过程,给出了系统动态演化的事件模型和作战单元的Agent模型,并针对仿真结果进行了分析;从而证明了ABMS方法的可行性和有效性.     

体系对抗仿真中的信息网络建模研究与实现

信息化条件下战争系统以体系对抗为特征.为了研究信息网络在战争系统中的作用原理和运行机制,针对信息化条件下的体系对抗仿真系统开发,以体系对抗仿真模型体系为基础,以仿真信息化战争系统所具有的整体性、对抗性、动态性特征为需求,提出建立信息网络模型的研究思路,并依据系统工程的方法步骤,按照需求分析、概念建模、仿真建模、模型验证和仿真运行与收集仿真结果的步骤对典型作战体系--防空反导体系的网络模型研究与实现的过程进行了系统的探讨.     

作战超网络多Agent模型

运用网络化作战的思想,分析了军事网络的性质,将复杂适应系统理论多Agent建模和超网络建模相结合,提出一种超网络多Agent模型.该模型使用超网络表示军事网络;在微观层面,扩展实体的网络属性;宏观层面考虑了网络的演化行为.模型结合实体关系对网络的涌现和整体网络对实体行为的驱动实现网络状态机,规定和反映网络的交互关系和发展变化,以更好地反映信息化作战条件下的体系对抗特征.使用该模型建立的仿真平台比较适合进行指挥、控制方面的实验.     

基于MDA的训练仿真建模研究

文中从模型驱动体系(MDA)的特性出发,根据某作战仿真系统的研究成果,分别从MDA基本模型、模型描述两方面研究了基于MDA体系的训练型仿真系统模型的结构.随后从建模的过程入手,探讨了基于MDA的仿真系统开发方法,有助于进一步对MDA在仿真系统中的应用进行研究,同时也为其他类型仿真系统的建模方法提供了一定的参考.     

海上机动目标建模及其在分布式仿真中的应用

机动目标建模是飞行器分布式仿真研究中的重要环节,它为飞行器控制系统仿真提供模拟的机动编队目标行动、对抗策略和作战效果,其模拟精度直接关系到整个仿真系统的可信度;文章首先介绍目标节点在仿真系统中的作用和数据传输关系,然后基于理论建模和统计建模方法,推导并建立了舰炮反导作战仿真模型、舰空导弹反导作战仿真模型、作战效果评估模型,已成功应用于某分布式仿真系统,仿真试验结果证明了模型建立的有效性。     

反潜巡逻机作战仿真组件化建模研究

为了提高反潜巡逻机作战仿真模型的重用性,引入了基于J2EE/EJB的组件化仿真建模思想,可以通过组合模型组件的方法构建复杂的仿真系统.首先,根据反潜巡逻机的装备组成、战术手段及特点,构建了基于EJB组件和分层的反潜巡逻机作战仿真模型系;其次,采用UML对模型系和模型组件进行建模,从静态视图和动态视图两个方面阐述了潜巡逻机作战仿真建模的具体方法;最后,介绍了反潜巡逻机作战仿真系统的设计与实现,提出了基于EJB和HLA的仿真体系架构,给出了模型组件和客户端的关键代码实现,并通过仿真执行流程展示了如何通过模型组件构建反潜巡逻机作战仿真系统.     

命令模式下的智能UUV模型设计

多智能UUV编队作战时,接收到上级的命令后,应以上级命令为中心根据环境信息采取行动完成任务。通常的Agent模式以个体意识为中心,不适合这种以命令为中心的UUV建模。本文结合近年来Agent理论的研究成果,通过对军事作战中命令体制的研究,提出一种基于命令的Agent模型组织结构,给出了该模型的形式化语言描述,并构建了基于命令机制的智能UUV模型,实现了基于MAS的多UUV机群作战仿真系统。为构建基于MAS的水下网络中心战系统提供技术支撑。     

基于Agent的建模与仿真在太空作战仿真中的应用

简单介绍了基于Agent的建模与仿真方法,指出它是仿真研究像太空作战系统这样的复杂系统的有效手段.给出了Agent的一种控制论模型结构,定义了Agent间进行交互的消息流和消息格式,在此基础上设计实现了通用的Agent模板类,其他具体的实体Agent都由它继承、聚集而来,并设计实现了一个简单的太空作战仿真演示系统--基于Agent设计的反卫星作战过程仿真演示系统,验证了基于Agent的仿真技术应用于太空作战仿真的有效性,为进一步构建完善的太空作战仿真系统打下了基础.     

水雷战对抗视景仿真系统关键技术研究

针对水雷战对抗分布交互仿真系统可视化的需要,提出了一种适应水雷作战过程三维图像演示系统的综合设计方法.解决的关键技术有：使用三维建模工具Creator进行武器实体和海底地形三维建模、基于Vega解决了对海洋水下环境的模拟、采用动态实体列表的方法实现了武器实体的动态添加等.该文的研究成果已应用于水雷战对抗分布交互仿真项目中,用户反映该视景仿真系统的逼真性和实时性良好,具有推广应用价值.     

煤矿井下安全监控分站的设计及其仿真实现

为了设计一种具有低成本、低功耗、易操作、功能强且可靠性高的煤矿井下安全分站,针对煤矿安全生产实际,文章提出了采用MCS-51系列单片机为核心、具有CAN总线通信接口的煤矿井下安全监控分站的设计方案;首先给出煤矿井下安全监控分站的整体构架设计,然后着重阐述模拟量输入信号处理系统的设计过程,最后说明单片机最小系统及其键盘、显示、报警、通信等各个组成部分的设计;为验证设计方案的可行性与有效性,使用Proteus软件对设计内容进行仿真验证,设计的煤矿井下安全监控分站具有瓦斯、温度等模拟量参数超标报警功能和电机开停、风门开闭等开关量指示功能;仿真结果表明:设计的煤矿井下安全监控分站具有一定的实际应用价值.     

View-based model-driven architecture for enhancing maintainability of data access services

In modern service-oriented architectures, database access is done by a special type of services, the so-called data access services (DAS). Though, particularly in data-intensive applications, using and developing DAS are very common today, the link between the DAS and their implementation, e.g. a layer of data access objects (DAOs) encapsulating the database queries, still is not sufficiently elaborated, yet. As a result, as the number of DAS grows, finding the desired DAS for reuse and/or associated documentation can become an impossible task. In this paper we focus on bridging this gap between the DAS and their implementation by presenting a view-based, model-driven data access architecture (VMDA) managing models of the DAS, DAOs and database queries in a queryable manner. Our models support tailored views of different stakeholders and are scalable with all types of DAS implementations. In this paper we show that our view-based and model driven architecture approach can enhance software development productivity and maintainability by improving DAS documentation. Moreover, our VMDA opens a wide range of applications such as evaluating DAS usage for DAS performance optimization. Furthermore, we provide tool support and illustrate the applicability of our VMDA in a large-scale case study. Finally, we quantitatively prove that our approach performs with acceptable response times.     

A pragmatic multi-method investigation of discrepant technological events: Coping,attributions, and ‘accidental’ learning

Discrepant technological events or situations that entail a problem, a misunderstanding or a difficulty with the Information Technology (IT) being employed, are common in the workplace, and can lead to frustration and avoidance behaviors. Little is known, however, about how individuals cope with these events. This paper examines these events by using a multi-method pragmatic approach informed by coping theory. The results of two studies – a critical incident study and an experiment – serve to build and test, respectively, a theoretical model that posits that individuals use a variety of strategies when dealing with these events: they experience negative emotions, make external attributions, and adopt engagement coping strategies directed at solving the event, eventually switching to a disengagement coping strategy when they feel they have no control over the situation. Furthermore, users’ efforts may result in ‘accidental’ learning as they try to overcome the discrepant IT events through engagement coping. The paper ends with a discussion of the results in light of existing literature, future opportunities for research, and implications for practice.     

The Distributed Time-Triggered Simulation Scheme: Core Principles and Supporting Execution Engine

Distributed real-time simulation is a young technology field but its practice is under increasing demands. In recent years the author and his collaborators have been establishing a new approach called the distributed time-triggered simulation (DTS) scheme which is conceptually simple and easy to use but widely applicable. The concept was initiated in the course of developing a new-generation object-oriented real-time programming scheme called the time-triggered message-triggered object (TMO) programming scheme. Some fundamental issues inherent in distributed real-time simulation that were learned during recent experimental studies are discussed along with some approaches for resolving the issues. An execution engine developed to support both the TMOs engaged in control computation and the TMOs engaged in DTS is also discussed along with its possible extensions that will enable significantly larger-scale DTSs.     

Software-Konfigurationsmanagement in großen Softwareprojekten

Zusammenfassung Mit zunehmender Größe der Softwaresysteme verschärfen sich die für die Software-Herstellung typischen Probleme: Beherrschen großer Objektmengen, Erhalten der Systemkonsistenz, Kontrolle der ständigen Änderungseinflüsse und Gewährleisten einer langen Lebensdauer. Die Disziplin Konfigurationsmanagement bildet den methodischen Ansatz, diese Probleme besser zu beherrschen. Software-Konfigurationsmanagement faßt die Herstellung von Softwaresystemen als eine Abfolge von kontrollierten Änderungen an gesicherten Zwischen- und Endergebnissen auf. Dargestellt werden die Objekte und Funktionen des Software-Konfigurationsmanagements sowie die hierfür in großen Software-Projekten benötigten Methoden, Instanzen und Hilfsmittel.     

Information for Authors

正http://www.zju.edu.cn/jzus http://www.springerlink.com Aim The Journals of Zhejiang University-SCIENCE(A/B/C)are edited by the international board of distinguished Chinese and foreign scientists,and are aimed to present the latest developments and achievements in scientific research in China and     

Editorial:Brain-machine interface(BMI) and cyborg intelligence

正Brain-machine interfaces(BMIs)aim at building a direct communication pathway between the brain and an external device,and represent an area of research where significant progress has been made during the past decade.Based on BMIs,mind information can be read out by neural signals to control     

Information for Authors

正http://www.zju.edu.cn/jzus http://www.springerlink.com Aim The Journals of Zhejiang University-SCIENCE(A/B/C)are edited by the international board of distinguished Chinese and foreign scientists,and are aimed to present the latest developments and achievements in scientific research in China and overseas to the world’s scientific circles,especially to stimulate     

SCIENCE CHINA Information Sciences SUBJECT INDEX TO VOLUME 57(2014)

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Information for Authors

正http://www.zju.edu.cn/jzus http://www.springerlink.com Aim The Journals of Zhejiang University-SCIENCE(A/B/C)are edited by the international board of distinguished Chinese and foreign scientists,and are aimed to present the latest developments and achievements in scientific research in China and overseas to the world’s scientific circles,especially to stimulate