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2012 IEEE International Conference on Computer Science and Automation Engineering（CSAE 2012）

作者： Di Zheng Department of Computer Science Naval University of Engineering wuhan HuBei China 430033 Jun Wang Key Research Lab wuhan Air force radar Institute wuhan HuBei China 430019 Ben Kerong Department of Computer Science Naval University of Engineering wuhan HuBei China 430033

With the rapid development of pervasive computing, more and more sensors based applications have been implemented. And many problems occur in the process of providing stable basis for the normal working of these systems. One of them is how to continuously monitor/capture and interpret the environment related information efficiently to assure high context awareness. Many attentions have been paid to the research of the context-aware pervasive applications. However, most of them just use the raw context directly or take the Quality of Context （QoC） into account in just one or two steps. Therefore, we propose a layered middleware based context-aware framework that support QoC management through various layers. By this framework we can refinery raw context, discard duplicate and inconsistent context so as to protect and provide QoS-enriched context information of users to context-aware applications and services.

关键词： QoC middleware Context-aware Pervasive

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A New Method of ISAR Motion Compensation Based on Genetic Algorithm

A New Method of ISAR Motion Compensation Based on Genetic Al...

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2009 2nd Asian-Pacific Conference on Synthetic Aperture radar（APSAR2009）

作者： Xiang Long 1 Liu Runhua 2 Peng Shibao 1 1 Department of Graduate Management AFRA wuhan 430019 China 2 Research Center of radar Imaging Technique AFRA wuhan 430019 China

Based on genetic algorithm,a new method of ISAR motion compensation is presented in this *** to guarantee that GAMIC（genetic algorithm of maximum image contrast）and GAMIE（genetic algorithm of minimum image entropy）converge on the optimum solution,the optimum individual preserved tactical is *** to reduce the heavy computation of GAMIC and GAMIE,the minimum distance and the minimum entropy of the range profile after motion compensation are taken as the fitness functions of genetic *** improvements described above,two new ISAR motion compensation approaches,named as GAMRD and GAMRE,are proposed in this *** two new approaches have been verified by simulation data and measurement ISAR data.

关键词： ISAR Motion Compensation Genetic Algorithm Minimum Entropy Minimum Distance

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带微处理器的电路板的仿真测试方法研究

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微处理机 1999年第4期20卷 57-59页

作者：邓斌李演仁空军雷达学院装备研究所武汉430010

对带微处理器的电路板的测试进行研究 ,介绍四种实用的仿真测试方法 :处理器仿真测试、存贮器仿真测试、总线周期仿真测试和 DMA仿真测试 ;并且对其优缺点进行比较。

关键词： PCB 微处理器电路板仿真测试

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维普期刊数据库

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A Priority Buffering Queue Architecture in High-Speed Switch

A Priority Buffering Queue Architecture in High-Speed Switch

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2001 International Symposium on Distributed Computing and Applications to Business, Engineering and Science

作者： Yang Yuhai Group of Graduate Airforce Army radar academy wuhan Hubei 430010 P.R.China Bin Xuelian Group of Doctor Institute of Computing Technology NUDT Changsha Hunan 410073 P.R.China Zheng Yuqiang P&S Electronics CO.Ltd wuhan Hubei 430070 P.R.China

＜正＞It is evident that an efficient buffering and queuing scheme play a key role in the performance of the *** order to make the schedulers flexible and effective and guarantee quality of service（QoS）.We need to design a buffering queue architecture that supports priority *** this paper. we propose priory FIFO queue architecture PFQ after Studying conventional buffering and queuing *** is based on the basic idea of shift *** priority FIFO queue is organized as a linked *** solves the HOL（Head of Line） problem efficiently by setting the high-speed local *** results show that PFQ is highly flexible and efficient at a low hardware ***,using PFQ in the switch,we can implement a much more flexible scheduling *** present a scheduling algorithm PSLP,which is very casy to *** last,we draw a conclusion that PFQ can be used in guaranteeing QoS requirements in high-speed switch and can be designed as a single-chip to simplify switch design.

关键词： FIFO Priority Buffering and Queuing PFQ Priority Scheduling

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基于机会约束规划多阶段雷达随机备件概算方法

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装备指挥技术学院学报 2004年第1期15卷 81-84页

作者：孙知建肖文杰徐毓空军雷达学院雷达系统工程系湖北武汉430019 空军雷达学院指挥自动化工程系湖北武汉430019

根据机会约束规划理论,在考虑经费条件、保障水平等因素的基础上,对传统的随机备件概算方法进行了改进,提出了一种基于机会约束规划的多阶段概算方法.试验表明,该算法具有一定的理论价值和实际应用价值,进一步提高了军品采购的经济效益... 详细信息

根据机会约束规划理论,在考虑经费条件、保障水平等因素的基础上,对传统的随机备件概算方法进行了改进,提出了一种基于机会约束规划的多阶段概算方法.试验表明,该算法具有一定的理论价值和实际应用价值,进一步提高了军品采购的经济效益和军事效益.

关键词：机会约束规划随机备件多阶段概算雷达置信水平军品采购

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维普期刊数据库

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Analysis of STAP on MDV for Spaceborne SAR-GMTI Applications

Analysis of STAP on MDV for Spaceborne SAR-GMTI Applications

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2006 CIE International Conference on radar

作者： Chen Jianwen 1 Ren lei 1 2 1.Key Research Lab wuhan radar Institute wuhan Hubei 430019 China 2.National University of Defense Technology Changsha Hunan 410073 China

Space-time adaptive processing （STAP） holds tremendous potential for the new generation spaceborne radar to get good performance of ground/sea moving target indicator （GMTI）.A system scheme based on the fully adaptive space-time processing of spaceborne SAR-GMTI mode of operation is presented in this *** the minimum detectable velocity （MDV） of target in GMTI mode is *** analysis and simulations demonstrate the effectiveness of the system scheme.

关键词： Space-time adaptive processing (STAP) ground moving target indicator (GMTI) spaceborne SAR-GMTI minimum detectable velocity (MDV).

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A Cross-Feed Wideband Patch Antenna and Its Hi-Gain Application

A Cross-Feed Wideband Patch Antenna and Its Hi-Gain Applicat...

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2006 7th International Symposium on Antennas, Propagation and EM Theory

作者： Ding Kejia Wang Bingqie Jin Mei SuDonglin School of Electronic and Infonnation Engineering, BUAA, Beijing 100083, China School of Electronic and Information Engineering, BUAA, Beijing 100083, China Dept. of ECM, Air Force radar academy, wuhan 430010, China.

A novel cross-feed wideband patch antenna and its hi-gain application is investigated. The antenna elements are cross-fed by parallel broadbrimmed coupled lines to actualize impedance match and enhance gam. Theoretical analysis and simulation results show that the antenna fabricated on a εr =2.6 permittivity substrate of h =1 mm thickness can achieve 53% impedance bandwidth (VSWR<2.0) and maximal gain reaches 4.8dBi, with perfect far-field radiant characteristics and stable phase center. By mounting reflectors and directors around the antenna elements, adjusting parameters, 7-12dB gain in 51% impedance bandwidth can be achieved. The antenna is easy to design and fabricate. The design parameters can be adjusted easily. The antenna takes on high value in application.

关键词： Index Terms Wideband antenna, Patch antenna, hi-gain, reflector, director

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支持优先级的高速交换开关缓冲队列分析与设计

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计算机工程与应用 2003年第1期39卷 128-131页

作者：杨玉海宾雪莲郑玉墙空军雷达学院研究生队武汉430010 国防科大计算机学院博士生队长沙410073 武汉力源电子股份有限公司武汉430010

缓冲队列在交换开关中起着重要的作用。为了使交换开关的调度更加灵活有效,可以采用硬件方法实现缓冲排队。为了支持QOS,还有必要设计一种支持优先级的排队机制。该文在研究已有的缓冲排队方案基础上,提出一种支持优先级FIFO排队的硬件... 详细信息

缓冲队列在交换开关中起着重要的作用。为了使交换开关的调度更加灵活有效,可以采用硬件方法实现缓冲排队。为了支持QOS,还有必要设计一种支持优先级的排队机制。该文在研究已有的缓冲排队方案基础上,提出一种支持优先级FIFO排队的硬件体系结构PFQ(PriorityFIFOQueue)。PFQ借鉴了移位寄存器的基本思想,按链表形式组织每个FIFO队列,通过设置高速局部总线,有效解决了头信元阻塞问题。使得采用PFQ的交换开关可以实现更加灵活的调度算法。模拟结果表明PFQ具有灵活、高效、硬件代价较低并且实现简单的优点。

关键词：优先级高速交换开关缓冲队列分析设计路由器硬件排队 Internet

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维普期刊数据库

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