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1.
基于SAGA的区域防空雷达组网优化部署   总被引:1,自引:0,他引:1  
时银水  郭栋 《微计算机信息》2007,23(30):131-133
区域防空雷达组网是防空作战空情预警的发展趋势。研究了雷达网优化部署问题,建立了评估模型,设计了雷达网优化部署的模拟退火遗传算法,仿真结果证明该方法对雷达组网部署优化具有一定参考价值。  相似文献   

2.
研究了舰栽相控阵雷达和海洋大气环境的特殊性,分别引入相控阵雷达天线模型,目标检测模型和电磁波传播模型,建立了舰载相控阵雷达目标检测仿真系统,实现了舰载相控阵雷达目标检测的可视化,为相关装备应用系统的研制开发积累了一定的经验.  相似文献   

3.
首照宇 《计算机工程》2007,33(17):249-250
为使防区内多部、多类型雷达的探测效能得到最大发挥,并有利于探测到突防目标,必须将现有的雷达进行有效组网。该文在给定的预警区域内根据组网要求,提出了一种带有扰动项的改进粒子群算法(PSO-DT),仿真结果表明该算法能满足组网要求。  相似文献   

4.
区域防空雷达网是防空作战空情预警的发展趋势,为了提高区域雷达网探测能力和抗综合电子干扰、抗隐身技术与隐身飞机的威胁,抗低空、超低空突防及抗反辐射导弹(ARM)的能力,研究雷达组网的问题,介绍免疫遗传算法的基本原理和特点,提出基于免疫遗传算法的雷达组网方法,通过计算机仿真实验证明方法的可行性。  相似文献   

5.
研究被动相控阵资源优化调度.相控阵雷达实现目标跟踪,精度和实时性是主要的指标.针对现有的主动相控阵资源调度不能很好地解决被动环境下搜索截获概率低,跟踪精度差的问题,提出一种被动相控阵雷达自适应调度算法(以下简称为被动自适应调度算法).算法根据被动截获、跟踪的特点,设计被动自适应调度算法的实现框架,重点研究了被动自适应调度的任务参数自适应生成、任务优先级评估及调度自适应执行等算法过程,并给出了被动自适应调度算法性能评估指标.仿真结果表明,该算法能优化安排被动相控阵雷达时、空、频等资源,缩短目标发现时间,保证跟踪稳定性.  相似文献   

6.
为了满足组网火控雷达高效准确地处理复杂、未知航迹数据的需求,航迹关联算法应该具备自适应的能力;针对分布式结构的组网火控雷达系统数据率高、处理速度要求快和每个节点只跟踪一个目标的特点,给出了一种航迹关联不确定度的定义,并将其引入传统的加权法关联过程;结合航迹不确定度与系统快速处理的需求,提出了一种基于加权法的关联步长自适应关联算法;通过建立仿真实验,给出了相关参数的门限以及仿真结果,分析其仿真结果,验证了算法的合理性和可行性,得到了更高的关联正确率.  相似文献   

7.
主要目的是研究和实现高层体系结构(HLA)时间管理这一核心接口在雷达电子战仿真系统中的具体应用,从而提出雷达电子战仿真由单系统平台向基于HLA分布式平台转变的仿真方法.主要方法是通过对高层体系结构时间管理服务内容和算法的研究,并结合雷达电子战各仿真实体,尤其是相控阵雷达波束调度流程的实际特点,提出时间管理策略、时间推进机制等接口内容的具体实现.结合某防空武器系统给出了具体的仿真时间推进结果,从中可以得出结论,基于高层体系结构构建的雷达电子战分布式仿真系统的运行效率要优于单系统仿真.  相似文献   

8.
从科学合理分配组网火控雷达资源出发,以扩展卡尔曼滤波跟踪为基础,研究了用航迹精度作为传感器分配准则的方法;针对火控提高航迹精度和反隐身目标、低空目标作战需求,考虑雷达布站对防空覆盖区域划分和对抗ARM,提出了单部火控雷达对单目标进行跟踪、多部火控雷达对单目标进行跟踪和多部火控雷达对单目标间歇式轮换跟踪3种分配方式,对在不同方式下基于航迹精度的传感器分配方法进行讨论分析;设定组网系统雷达布站、目标运动和典型参数进行了仿真实验,通过仿真结果表明:3种分配方式的合理性和可行性。  相似文献   

9.
复杂电磁环境下防空雷达的探测模型研究   总被引:2,自引:0,他引:2  
郝佳新  甘斌 《计算机仿真》2009,26(6):33-36,69
现代战场处于复杂的电磁对抗环境之中,在空袭与防空作战中,制电磁权的斗争集中表现在雷达领域,防空雷达的探测模型是防空作战仿真中不可或缺的重要模型.传统的雷达模型对复杂电磁环境考虑的不够,模型通常为距离模型而非概率模型,并且模型参数过于复杂,不适合大规模作战仿真的需要.针对复杂电磁环境下电子对抗和雷达装备的特点,在雷达距离方程的基础上,对雷达探测的某些问题做了合理的简化,参考雷达探测的BLAKE图解法,采用功能性仿真,计算统计意义上的雷达探测概率,建立了雷达探测的概率模型和仿真算法.通过仿真结果与相关型号试验数据的印证,表明模型能够确切反映相关雷达的真实作战效能,适合作战仿真的需要.  相似文献   

10.
基于任务综合规划的相控阵自适应调度方法   总被引:1,自引:0,他引:1  
研究机载相控雷达调度优化控制问题.机载相控阵雷达可以高效遂行作战任务,但如何合理调度雷达任务请求,实时优化处理同时多任务对系统时间资源的竞争,是充分发挥多功能相控阵雷达性能优势的关键.针对相控阵雷达同时多任务在时间窗约束下实时优化调度问题,在综合考虑调度时刻前后任务请求、调度限制和可用资源等因素基础上,权衡任务请求重要程度、紧急程度和前后一定时间段内资源利用情况,提出了一种利用任务综合规划的相控阵自适应调度算法.仿真结果表明,新算法能够在雷达有限时间资源内提高相控阵雷达任务调度效率和时间利用率,获得了更优的综合性能.  相似文献   

11.
Abstract This paper describes an approach to the design of interactive multimedia materials being developed in a European Community project. The developmental process is seen as a dialogue between technologists and teachers. This dialogue is often problematic because of the differences in training, experience and culture between them. Conditions needed for fruitful dialogue are described and the generic model for learning design used in the project is explained.  相似文献   

12.
European Community policy and the market   总被引:1,自引:0,他引:1  
Abstract This paper starts with some reflections on the policy considerations and priorities which are shaping European Commission (EC) research programmes. Then it attempts to position the current projects which seek to capitalise on information and communications technologies for learning in relation to these priorities and the apparent realities of the marketplace. It concludes that while there are grounds to be optimistic about the contribution EC programmes can make to the efficiency and standard of education and training, they are still too technology driven.  相似文献   

13.
融合集成方法已经广泛应用在模式识别领域,然而一些基分类器实时性能稳定性较差,导致多分类器融合性能差,针对上述问题本文提出了一种新的基于多分类器的子融合集成分类器系统。该方法考虑在度量层融合层次之上通过对各类基多分类器进行动态选择,票数最多的类别作为融合系统中对特征向量识别的类别,构成一种新的自适应子融合集成分类器方法。实验表明,该方法比传统的分类器以及分类融合方法识别准确率明显更高,具有更好的鲁棒性。  相似文献   

14.
Development of software intensive systems (systems) in practice involves a series of self-contained phases for the lifecycle of a system. Semantic and temporal gaps, which occur among phases and among developer disciplines within and across phases, hinder the ongoing development of a system because of the interdependencies among phases and among disciplines. Such gaps are magnified among systems that are developed at different times by different development teams, which may limit reuse of artifacts of systems development and interoperability among the systems. This article discusses such gaps and a systems development process for avoiding them.  相似文献   

15.
This paper presents control charts models and the necessary simulation software for the location of economic values of the control parameters. The simulation program is written in FORTRAN, requires only 10K of main storage, and can run on most mini and micro computers. Two models are presented - one describes the process when it is operating at full capacity and the other when the process is operating under capacity. The models allow the product quality to deteriorate to a further level before an existing out-of-control state is detected, and they can also be used in situations where no prior knowledge exists of the out-of-control causes and the resulting proportion defectives.  相似文献   

16.
Going through a few examples of robot artists who are recognized worldwide, we try to analyze the deepest meaning of what is called “robot art” and the related art field definition. We also try to highlight its well-marked borders, such as kinetic sculptures, kinetic art, cyber art, and cyberpunk. A brief excursion into the importance of the context, the message, and its semiotics is also provided, case by case, together with a few hints on the history of this discipline in the light of an artistic perspective. Therefore, the aim of this article is to try to summarize the main characteristics that might classify robot art as a unique and innovative discipline, and to track down some of the principles by which a robotic artifact can or cannot be considered an art piece in terms of social, cultural, and strictly artistic interest. This work was presented in part at the 13th International Symposium on Artificial Life and Robotics, Oita, Japan, January 31–February 2, 2008  相似文献   

17.
《计算机科学》2007,34(4):148-148
Recent years have seen rapid advances in various grid-related technologies, middleware, and applications. The GCC conference has become one of the largest scientific events worldwide in grid and cooperative computing. The 6th international conference on grid and cooperative computing (GCC2007) Sponsored by China Computer Federation (CCF),Institute of Computing Technology, Chinese Academy of Sciences (ICT) and Xinjiang University ,and in Cooperation with IEEE Computer Soceity ,is to be held from August 16 to 18, 2007 in Urumchi, Xinjiang, China.  相似文献   

18.
Although there are many arguments that logic is an appropriate tool for artificial intelligence, there has been a perceived problem with the monotonicity of classical logic. This paper elaborates on the idea that reasoning should be viewed as theory formation where logic tells us the consequences of our assumptions. The two activities of predicting what is expected to be true and explaining observations are considered in a simple theory formation framework. Properties of each activity are discussed, along with a number of proposals as to what should be predicted or accepted as reasonable explanations. An architecture is proposed to combine explanation and prediction into one coherent framework. Algorithms used to implement the system as well as examples from a running implementation are given.  相似文献   

19.
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.  相似文献   

20.
This paper provides the author's personal views and perspectives on software process improvement. Starting with his first work on technology assessment in IBM over 20 years ago, Watts Humphrey describes the process improvement work he has been directly involved in. This includes the development of the early process assessment methods, the original design of the CMM, and the introduction of the Personal Software Process (PSP)SM and Team Software Process (TSP){SM}. In addition to describing the original motivation for this work, the author also reviews many of the problems he and his associates encountered and why they solved them the way they did. He also comments on the outstanding issues and likely directions for future work. Finally, this work has built on the experiences and contributions of many people. Mr. Humphrey only describes work that he was personally involved in and he names many of the key contributors. However, so many people have been involved in this work that a full list of the important participants would be impractical.  相似文献   

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