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2013 5th International Conference on Computational Intelligence and Communication Networks最新文献

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Forest Resources Management Based on GIS Technology 基于GIS技术的森林资源管理
Zhongwei Wang, Yan An
GE Small world is a new type of GIS software. Based on the fundamental meaning of Geographic Information System (GIS), the important features of GE Small world and the fundamental features of Forest Resources, we discuss the current application in forest resources information management, forest insect pest and disease control, the integration between GPS (global positioning system) and YAN AN RS (remote sensing), resource management in nature reserve. At the same time the further development of GE Small world in forest resources management has been analyzed.
GE小世界是一款新型的GIS软件。从地理信息系统(GIS)的基本含义、GE小世界的重要特征和森林资源的基本特征出发,论述了地理信息系统在森林资源信息管理、森林病虫害防治、全球定位系统(GPS)与遥感(YAN AN RS)集成、自然保护区资源管理等方面的应用现状。同时对GE小世界在森林资源管理方面的进一步发展进行了分析。
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引用次数: 3
Study on Resonant Properties of Complicated Microwave Cavity in Rubidium Frequency Standard 铷频标中复杂微波腔的谐振特性研究
Xiaoxiao Li, Fan Yang
Microwave cavity with complicated structure and rubidium gas is studied by mode matching method. By calculating resonant frequencies of TE011 mode, main factors that influence resonant frequency is studied. In addition, the resonant frequency of TE011 mode is compared with commercial software (CST) results. The computed results show good agreement with CST simulations. It can be seen that this method is of high credibility and efficiency. This paper is of great significance for cavity design and theoretical perfection.
用模式匹配方法研究了结构复杂的含铷气体微波腔。通过对TE011模式谐振频率的计算,研究了影响TE011模式谐振频率的主要因素。此外,还将TE011模式的谐振频率与商业软件(CST)结果进行了比较。计算结果与CST模拟结果吻合较好。由此可见,该方法具有较高的可信度和效率。本文对空腔设计和理论完善具有重要意义。
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引用次数: 0
Sifting of a Potent Convex Hull Algorithm for Scattered Point Set Using Parallel Programming 用并行规划筛选一种有效的散点集凸包算法
A. Manekar, Malti Nagle, Pankaj K. Kawadkar, H. Gupta
Geographic Information Systems (GIS) has been prominently working for the designed to sculpt the world. With the growth and data and increasing sophistication of analysis and processing techniques the traditional sequential methods of performing GIS processing on desktop computers is insufficient. This paper is based on analysis and the performance of 3D convex hull algorithm for the three flavors of parallel architecture considering spatial scatter point data using parallel programming. As GIS use huge set of scatter data for processing and development of many product, a Convex Hull of planner scattered point set will useful in the area of planning and grafting the satellite image in GIS. Analysis is based on the parallel algorithm on OpenMP, MPI and Hybrid of HPC (High Performance Computing) architecture also improvement strategy for the huge data point available for computing such as GIS spatial data with respective OpenMP, MPI and Hybrid is stated.
地理信息系统(GIS)一直在为设计人员塑造世界做出突出贡献。随着数据的增长和分析和处理技术的日益复杂,传统的在台式计算机上执行GIS处理的顺序方法是不够的。本文在分析三维凸包算法的基础上,考虑空间散点数据,采用并行编程对三种并行架构进行了性能分析。由于地理信息系统需要大量的离散点数据来处理和开发许多产品,因此利用凸壳规划器离散点集对地理信息系统中的卫星图像进行规划和嫁接具有重要意义。在高性能计算(HPC)架构的OpenMP、MPI和Hybrid并行算法的基础上进行了分析,并分别阐述了OpenMP、MPI和Hybrid对GIS空间数据等可供计算的海量数据点的改进策略。
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引用次数: 2
Performance Evaluation of Backoff Method -- Effect of Backoff Factor on Exponential Backoff Algorithm 退避方法的性能评价——退避因子对指数退避算法的影响
Deepa Singh, B. Pandey, G. Tomar, Bimal Kumar Sarkar
In this paper the effect of back off factor on exponential algorithm is analyzed and binary exponential algorithm is implemented in Mat lab. Binary Exponential Algorithm is widely used as a network congestion avoidance or collision resolution protocol. The detailed analysis of saturation throughput is done in this work. This work also covers packet's medium access delay for a given number of node N. Binary exponential is a special case of exponential back off when r =2, where r is a back off factor and we basically analyse the effect of back off factor r =1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2.0 on exponential back off algorithm. All the result is obtained through Matlab (Matrix Laboratory) simulation language.
本文分析了后退因子对指数算法的影响,并在matlab实验室中实现了二进制指数算法。二进制指数算法是一种广泛使用的网络拥塞避免或冲突解决协议。本文对饱和吞吐量进行了详细的分析。本工作还涵盖了给定节点数n的分组介质访问延迟。二进制指数是r =2时指数退缩的一种特殊情况,其中r为退缩因子,我们基本分析了退缩因子r =1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2.0对指数退缩算法的影响。所有结果均通过Matlab (Matrix Laboratory)仿真语言得到。
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引用次数: 6
Clock Gating Aware Low Power Global Reset ALU and Implementation on 28nm FPGA 基于时钟门控的低功耗全局复位ALU及其在28nm FPGA上的实现
B. Pandey, J. Yadav, J. Kumar, Ravi Kumar
In this paper, we apply clock gating technique in Global Reset ALU design on 28nm Artix7 FPGA to save dynamic and clock power both. This technique is simulated in Xilinx14.3 tool and implemented on 28nm Artix7 XC7A200T FFG1156-1 FPGA. When clock gating technique is not applied clock power contributes 32.25%, 4.24%, 3.06%, 3.09%, and 3.09% of overall dynamic power on 100 MHz, 1 GHz, 10 GHz, 100GHz and1 THz device frequency respectively. When clock gating technique is applied clock power contributes 0%, 1.02%, 1.06%, 1.06%, and 1.06% of overall dynamic power on 100 MHz, 1 GHz, 10 GHz, and 100GHz and1 THz device frequency respectively. With clock gating, there is 100%, 76.92%, 66.30%, 66.55% and 66.58% reduction in clock power in compare to clock power consumption without clock gate on 100 MHz, 1 GHz, 10 GHz, 100 GHz and 1 THz respectively operating frequency. Clock gating is more effective on 28nm in compare to 40nm and 90nm technology file.
本文将时钟门控技术应用于28nm Artix7 FPGA的全局复位ALU设计中,以节省动态功耗和时钟功耗。该技术在Xilinx14.3工具中进行了仿真,并在28nm Artix7 XC7A200T FFG1156-1 FPGA上实现。当不采用时钟门控技术时,时钟功率在100mhz、1ghz、10ghz、100GHz和1thz器件频率上分别占总动态功率的32.25%、4.24%、3.06%、3.09%和3.09%。采用时钟门控技术时,时钟功率在100mhz、1ghz、10ghz以及100GHz和1thz器件频率上分别占总动态功率的0%、1.02%、1.06%、1.06%和1.06%。在100 MHz、1 GHz、10 GHz、100 GHz和1 THz工作频率下,时钟功耗与无时钟功耗相比分别降低了100%、76.92%、66.30%、66.55%和66.58%。与40nm和90nm技术文件相比,时钟门控在28nm上更有效。
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引用次数: 7
Post Silicon Debugging Approach for USB2.0: Case Study of Enumeration USB2.0的硅后调试方法:枚举的案例研究
Shwetank Shekhar, M. Pandey, G. Agarwal, Nitin Saxena
USB forms the backbone of communication to external world. When a USB device is attached to a USB host, a sequence of interaction happens for establishing the communication channel, known as enumeration. This paper explains the enumeration process of USB2.0 in detail and discusses the challenges faced during post silicon debug of couple of issues related with enumeration. As a case study we will analyze two issues which were found during enumeration. The first issue is related to repeated enumeration in which process hangs and second is related to timeout failure.
USB构成了与外部世界通信的主干。当USB设备连接到USB主机时,为建立通信通道而发生一系列交互,称为枚举。本文详细阐述了USB2.0的枚举过程,并讨论了与枚举相关的几个问题在硅后调试过程中所面临的挑战。作为案例研究,我们将分析在枚举过程中发现的两个问题。第一个问题与进程挂起的重复枚举有关,第二个问题与超时失败有关。
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引用次数: 2
Designing of Open Stub Low Pass Filter for 1.4 GHz 1.4 GHz开短段低通滤波器的设计
Akansha Agrawal, Ritambara Gupta, V. Kushwah
This paper presents the design and analysis of folded open stub impedance Micro strip Low-pass filters at cutoff frequency 1.4 GHz which gives insertion loss (S21) of -3. 413 dB and return loss of-2.571 dB at cut-off point. Design with making by the micro strip technology, it becomes more practical and widely used in modern Microwave circuits. This filter has less complexity and more compact size rather than other filters. Simulation is performed with the help of IE3D 14.1 Electromagnetic simulator, based on method of moments and results have been fairly good.
本文设计并分析了截止频率为1.4 GHz的插入损耗(S21)为-3的折叠开短段阻抗微带低通滤波器。截止点的回波损耗为-2.571 dB。微带技术的设计与制作,使微带电路在现代微波电路中得到了更广泛的应用。与其他过滤器相比,该过滤器具有更小的复杂度和更紧凑的尺寸。利用IE3D 14.1电磁模拟器,基于矩量法进行了仿真,取得了较好的效果。
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引用次数: 1
A Novel ABC Optimization Algorithm for Graph Coloring Problem 图着色问题的ABC优化算法
R. S. Tomar, Sonali Singh, S. Verma, G. Tomar
In this paper, graph coloring has been done using artificial bee colony (ABC) optimization algorithm. Graph coloring deals with the challenge of coloring the nodes of any graph by least possible number of colors while ensuring on same time that two adjacent nodes does not gain same color. That least possible count of colors used denotes the chromatic number of a graph and to determine this number for any graph is an NP-complete problem hence no existing polynomial time algorithm can solve it. To find the best coloring sequence, a large search space has to be explored. Graph coloring deals with the challenge of coloring the nodes of any graph by least possible number of colors while ensuring on same time that two adjacent nodes does not gain same color and proposed a novel artificial bee colony (ABC) optimization algorithm for graph coloring. In this paper, we analyzed the proposed algorithm and compared it with three other graph coloring algorithms i.e. first fit, largest degree based ordering (LDO) and saturation degree based ordering (SDO). These results also indicate that ABC algorithm converges in a few iterations and is able to optimally allocate colors to vertices of a graph.
本文采用人工蜂群(ABC)优化算法对图进行着色。图着色处理的挑战是用尽可能少的颜色为任意图的节点着色,同时确保相邻的两个节点不获得相同的颜色。最小可能使用的颜色数表示图的色数,确定任何图的色数是一个np完全问题,因此没有现有的多项式时间算法可以解决。为了找到最佳的着色序列,必须探索一个大的搜索空间。图的着色问题是在保证相邻的两个节点颜色不相同的同时,用尽可能少的颜色对任意图的节点进行着色,提出了一种新的图的人工蜂群(ABC)优化算法。在本文中,我们分析了所提出的算法,并将其与其他三种图着色算法即首次拟合、基于最大度排序(LDO)和基于饱和度排序(SDO)进行了比较。这些结果也表明ABC算法在几次迭代中收敛,并且能够最优地为图的顶点分配颜色。
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引用次数: 9
Dual-Band Bandstop Filter Using Modified Stepped-Impedance Hairpin Resonators 采用改进阶跃阻抗发夹谐振器的双频带阻滤波器
S. Majidifar, S. Makki, S. Alirezaee, A. Ahmadi
In this paper, a dual-band band stop filter is designed based on a modified stepped impedance hairpin resonator in which, two open stubs are embedded in the structure. There are two transmission zeros in each one of the stop bands. The center frequencies of the stop bands are placed at 2 and 5.92 GHz and their widths are 0.94 and 0.55 GHz, respectively. These stop bands can be adjusted by changing the dimensions of the embedded open stubs. This filter is then transferred to another substrate, fabricated and measured and the results for the two substrates are compared.
本文设计了一种基于改进阶跃阻抗发夹谐振器的双频带阻滤波器,该滤波器在结构中嵌入两个开桩。在每个阻带中都有两个传输零点。阻挡带的中心频率分别为2 GHz和5.92 GHz,宽度分别为0.94 GHz和0.55 GHz。这些止动带可以通过改变嵌入的开放式存根的尺寸来调节。然后将该滤波器转移到另一个基片上,制作和测量,并比较两个基片的结果。
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引用次数: 5
Bandwidth Enhancement of Microstrip Patch Antennas by Implementing Circular Unit Cells in Circular Pattern 利用圆形单元格实现微带贴片天线的带宽增强
Ruchika Gupta, Mithilesh Kumar
The micro strip patch antenna is the most preferred for low cost and compact design. The proposed antenna design is simulated using FR-4 substrate with dielectric constant of 4.54 and thickness of 1.60mm on electromagnetic (EM) simulation software. The antenna designed has a compact structure with a total size of 60x60mm square. The bandwidth of micro strip patch antenna is enhanced by replacing a conducting ground plane by a high impedance EBG layer. The circular unit cells are placed in a circular pattern and it is found that on increasing the radius of each circular EBG cell, the bandwidth is increased. It is also observed that on increasing the radii of vias, there is a slight decrement in the bandwidth of micro strip patch antennas. The bandwidth of micro strip patch antenna is increased from 13.41% to 18.68% when radius of EBG patches is increased from 2.5mm to 3.5mm which is much wider than the bandwidth of conventional antenna that is calculated to be 4.28%. The simulated results of the integrated antenna for wireless applications shows the good agreement with the proposed scheme.
微带贴片天线因其低成本和紧凑的设计而成为首选。采用介电常数为4.54、厚度为1.60mm的FR-4衬底在电磁仿真软件上进行了仿真。设计的天线结构紧凑,总尺寸为60x60mm方。微带贴片天线采用高阻抗EBG层代替导电接地面,提高了天线的带宽。将圆形单元格以圆形方式放置,发现随着每个圆形单元格半径的增加,带宽增加。随着通孔半径的增大,微带贴片天线的带宽有轻微的衰减。当EBG贴片半径从2.5mm增加到3.5mm时,微带贴片天线的带宽从13.41%增加到18.68%,比传统天线的4.28%带宽宽得多。无线应用集成天线的仿真结果表明,该方案与所提方案吻合较好。
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引用次数: 8
期刊
2013 5th International Conference on Computational Intelligence and Communication Networks
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