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2016 IEEE International Conference on Electronic Information and Communication Technology (ICEICT)最新文献

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Analysis on influence factors of the reliability of electric power communication networks 电力通信网可靠性的影响因素分析
S. Xiaoyan, Xu Hangtian
With the operation of the electric power network, the influence degree of stress, aging, deformation, bending and other factors on the reliability of the networks is found to have practical significance. The data of network status are large and independent, so we can correlate these independent data by means of subjective. In this paper, we combine the subjective weighting method and the objective weighting method, and invite six selected professionals to evaluate the decimal scoring method, then after dimensionless processing, we get the entropy relation grade of the influencing factors by using the grey relation entropy, finally we obtain the primary and secondary relationship of the influences on the reliability of the network. Results show that in the study of reliability influencing factors of electric power network, the grey relation entropy is a simple, practical and ideal method, and it provides an effective basis for the modeling of the reliability of electric power optical fiber communication networks.
随着电网的运行,发现应力、老化、变形、弯曲等因素对电网可靠性的影响程度具有现实意义。网络状态数据量大且相互独立,因此我们可以用主观的方法将这些独立的数据关联起来。本文将主观加权法与客观加权法相结合,邀请6位选定的专业人士对十进制评分法进行评价,然后经过无因次处理,利用灰色关联熵得到影响因素的熵关联等级,最终得到影响网络可靠性的主次关系。结果表明,在研究电网可靠性影响因素时,灰色关联熵是一种简单、实用、理想的方法,为电力光纤通信网络可靠性建模提供了有效依据。
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引用次数: 2
A refugee crisis system based on entropy AHP and dynamic programming 基于熵AHP和动态规划的难民危机系统
Maorong Shao, Ying Zhang, Ying Jiang, Lingxuan Zhu
Recent years, refugee crisis becomes an enormous issue due to the increasing tension between countries and a series of terrorist actions. In this paper, we use entropy AHP and dynamic programming model to set up a complete system for the refugee crisis, and make a comprehensive prediction and decision. First, we apply Analytic Hierarchy Process and dissect main influencing factors subjectively in order to select main influencing factors. Next, we make use of Entropy weight objectively. In the end, we establish Entropy AHP Math Model as an evaluation factor of evaluating refugee crisis. According to composite scores for samples, reach the leading factor for samples. When it comes to dynamics of the crisis, we first use Principal Component Analysis Method to analyze environmental factors that change over time. Next, we use Logistic Model to make predictions for the number of refugees. Last we program refugee conditions in dynamic environment with the result of principal component analysis as variable functions and the quantity obtained through Logistic Models as cornerstones. We also discuss the exogenous events and the expansible ability of our conclusion.
近年来,由于国与国之间的紧张关系日益加剧和一系列恐怖主义行动,难民危机成为一个巨大的问题。本文运用熵层次分析法和动态规划模型建立了一个完整的难民危机预测系统,并进行了全面的预测和决策。首先,运用层次分析法对主要影响因素进行主观上的剖析,选择主要影响因素。其次,客观地利用熵权。最后,建立了熵AHP数学模型作为评价难民危机的评价因子。根据样本的综合得分,得出样本的主导因子。当涉及到危机的动态时,我们首先使用主成分分析法来分析随时间变化的环境因素。接下来,我们使用Logistic模型对难民数量进行预测。最后,以主成分分析的结果为变量函数,以Logistic模型得到的数量为基础,对动态环境下的难民状况进行了规划。我们还讨论了外生事件和我们的结论的可扩展性。
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引用次数: 0
Analysis on electromagnetic pulse coupling inside enclosure with aperture cable based on BLT equation 基于BLT方程的孔径电缆箱体内电磁脉冲耦合分析
Li Xuan, Liu Baihan
In order to analyze the cable coupling characteristic of electromagnetic pulse inside enclosure with aperture, this paper uses the BLT equation to the calculate cable terminal response of the electromagnetic pulse enclosure with aperture. Choosing a set of cables as analysis object inside enclosure with aperture, then using software CST analyzes the impact of different size of aperture on electric field strength and transmission line inside enclosure with aperture, when the type of cable is different, using software CST analyzes the influence of electromagnetic pulse on cable inside enclosure with aperture. Simulation results show that when the size of aperture is different, electric field strength inside enclosure with aperture is different, and transmission line terminal response will be different. When the type of cable is different, electromagnetic pulse passed into enclosure with aperture produces induced voltage on the cable is also different.
为了分析电磁脉冲在有孔径箱体内的电缆耦合特性,本文采用BLT方程计算了有孔径电磁脉冲箱体的电缆终端响应。选取一组带孔外壳内电缆作为分析对象,利用CST软件分析不同孔径大小对电场强度和带孔外壳内传输线的影响,当电缆类型不同时,利用CST软件分析电磁脉冲对带孔外壳内电缆的影响。仿真结果表明,当孔径大小不同时,具有孔径的箱体内电场强度不同,传输线终端响应也不同。当电缆类型不同时,电磁脉冲通过带孔的外壳,在电缆上产生的感应电压也不同。
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引用次数: 1
Modeling and EMC simulation of vehicular radio transmission antenna 车载无线电发射天线建模与电磁兼容仿真
A. Guellab, Qun Wu
This paper presents an average complexity model of a military vehicle (Humvee) carrying a radio transmission antenna for the Electromagnetic Compatibility (EMC) simulation by using the Finite Difference Time Domain method (FDTD). Electromagnetic (EM) fields inside and nearby of the vehicle are computed. The high strength EM fields locations called hot-spot inside the cabin are investigated. Surface current on the metallic structure of the vehicle is estimated. Then the EM exposure is compared with the recommended limits defined by the RE102 directive.
本文采用时域有限差分法(FDTD)建立了军用车辆(Humvee)的平均复杂度模型,用于电磁兼容性(EMC)仿真。计算了车辆内部和附近的电磁场。研究了机舱内被称为热点的高强度电磁场位置。估计了车辆金属结构的表面电流。然后将电磁辐射暴露与RE102指令规定的建议限值进行比较。
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引用次数: 1
SVM binary tree multi-classification method based on IBQPSO and its application in analog circuits fault diagnosis 基于IBQPSO的SVM二叉树多分类方法及其在模拟电路故障诊断中的应用
Yang Sen, Song Xiao
Aiming at the problems of traditional classification methods, a SVM binary tree multi-classification method based on Improved Binary-coded quantum particle swarm optimization (IBQPSO) is proposed in this paper. First, IBQPSO algorithm and its steps are presented and multi-classification SVM based on binary tree is discussed. Then, the presented method and procedures are analyzed. Finally, taking the biquadratic filter circuit as an example to do the simulation experiment, the result shows that the proposed method is efficient.
针对传统分类方法存在的问题,提出了一种基于改进二进制编码量子粒子群优化(IBQPSO)的支持向量机二叉树多分类方法。首先介绍了IBQPSO算法及其步骤,并讨论了基于二叉树的多分类支持向量机算法。然后,对所提出的方法和步骤进行了分析。最后,以双二次滤波电路为例进行仿真实验,结果表明该方法是有效的。
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引用次数: 1
Optimal LAS rceiver in massive MIMO system 大规模MIMO系统中最优LAS接收机
Zhang Linbo, Zhang Zhuo, L. Tong, Sun Shanshan
This paper is aimed at solving the intrinsic problem named partial minimum solution of LAS detection algorithm in massive MIMO system under the circumstance of channel state information is known in transmitting terminal, and presents a modified detection algorithm based likelihood ascend search(LAS). On the basic of conventional LAS detection algorithm, this modified detection algorithm searches the neighbor vector of current solution vector at random as original solution vector in the next iteration. Besides, this modified detection algorithm adopts the rule of dynamic iteration time to control the time of iteration in the signal detection of Massive MIMO system. Both of theory deduction and simulation result indicate that the modified detection algorithm based on LAS overcomes the problem of partial minimum solution so that the performance of BER is improved, meanwhile, the complexity of computation is reduced to raise the operating efficiency.
针对大规模MIMO系统中在发射端信道状态信息已知的情况下,LAS检测算法的局部最小解问题,提出了一种改进的基于似然上升搜索(LAS)的检测算法。改进的检测算法在传统LAS检测算法的基础上,在下一次迭代中随机搜索当前解向量的邻居向量作为原始解向量。此外,改进的检测算法在Massive MIMO系统的信号检测中,采用了动态迭代时间规则来控制迭代时间。理论推导和仿真结果表明,改进的基于LAS的检测算法克服了部分最小解的问题,提高了误码率的性能,同时降低了计算复杂度,提高了运行效率。
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引用次数: 2
Metamaterial-inspired sensor based on a complementary asymmetric double-split resonator 基于互补非对称双分裂谐振器的超材料启发传感器
Xi Ming Li, Jiang Yu, Peng Li, J. Yang, Ming Huang
Based on the Babinet Principle, a new metamaterial sensor is proposed in microwave region. The main part of the device is a microstrip coupled complementary asymmetric double-split resonator (CADSR). In this device, an extremely sharp resonance have been obtained due to the excitation of “trapped modes”. From the analysis, the effect of the degree of asymmetry on the frequency response and Q-Factor are thoroughly studied. Results show that there have an upward tendency of Q-Factor when increasing the degree of asymmetry, the distribution of the electric field and transmission response (S2i) have been also simulated in this work. Finally, the process and the performance is illustrated when CADSR is used as a sensor. We found that both dielectric constant and loss tangent of sample substance affect the resonance frequency. It is demonstrated that the reflection spectrum shift to lower frequency side when enhancing the permittivity of sample substance which is filled in groove. Furthermore, the CADSR will increase the contact area with field and sample, and the relation between resonant frequency and the sample permittivity exhibits a perfect linearity.
基于巴比内原理,提出了一种用于微波领域的新型超材料传感器。该器件的主要部分是微带耦合互补非对称双裂谐振器(CADSR)。在该装置中,由于“捕获模式”的激发,获得了非常尖锐的共振。通过分析,深入研究了不对称度对频率响应和q因子的影响。结果表明,随着不对称程度的增加,q因子呈上升趋势,并模拟了电场分布和传输响应(S2i)。最后,说明了CADSR作为传感器的过程和性能。我们发现样品物质的介电常数和损耗正切对谐振频率都有影响。结果表明,当填充在沟槽中的样品物质的介电常数增大时,反射谱向低频侧偏移。此外,CADSR会增加与场和样品的接触面积,谐振频率与样品介电常数之间呈完美的线性关系。
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引用次数: 0
A novel miniaturized frequency selective surface with stable responses 一种具有稳定响应的新型小型化频率选择表面
Zhi-Hang Liu, Decai Li, Guohui Yang, Shao-qing Zhang, Qun Wu
A novel band-pass Frequency Selective Surface (FSS) working on L-band is presented in this paper. By means of the coupling effect of the metallic patches on three different layers, the distributed capacitance of the periodic structure is formed and therefore decreases the resonant frequency. Investigations on the structure variables are presented and a novel unit cell, whose size is only λ0/20, is proposed. Furthermore, the novel FSS structure has shown a quite stable response for different incident angles and polarization modes as for its symmetry and miniaturization configuration. In addition, the miniaturization performance is investigated and optimized by changing the parameter of the structure.
提出了一种工作在l波段的新型带通频率选择表面(FSS)。通过三层金属贴片的耦合作用,形成了周期性结构的分布电容,从而降低了谐振频率。对结构变量进行了研究,提出了一种尺寸仅为λ0/20的新型单晶胞。此外,新型FSS结构由于其对称性和小型化结构,在不同入射角和偏振模式下都表现出相当稳定的响应。此外,通过改变结构参数,研究并优化了微型化性能。
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引用次数: 0
A GNSS integer ambiguity resolution method based on ambiguity domain search strategy 基于模糊域搜索策略的GNSS整数模糊度求解方法
Z. Dou, Jiaji Sun, Wenxu Zhang, Jianbo Hu
A new integer ambiguity resolution method is proposed to solve influence caused by Ambiguity real solutions accuracy and high dimensions on LAMBDA search strategy. Its search efficiency is very close to bootstrap algorithm and the success rate is higher. The reason is that the new method set reasonable number of ambiguity reservation number. By using in conjunction with SE-VB method, it Narrows the initial search radius of SE-VB algorithm and effectively reduces the computation time. Finally, the comparison of bootstrap, SE-VB and the new method in a GPS precise positioning experiment further verifies the effectiveness of the new algorithm.
针对模糊度实数精度和高维数对LAMBDA搜索策略的影响,提出了一种新的整数模糊度求解方法。它的搜索效率非常接近自举算法,成功率更高。原因在于新方法设置了合理的模糊保留数。通过与SE-VB方法结合使用,缩小了SE-VB算法的初始搜索半径,有效地减少了计算时间。最后,在GPS精确定位实验中对比了bootstrap、SE-VB和新方法,进一步验证了新算法的有效性。
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引用次数: 2
A weak capacity measurement system with vector ratio method based on phase sensitive detection 基于相敏检测的矢量比法弱容量测量系统
H. Hu, Qi Gao, Mingrui Xue
The paper presents a weak capacity measurement method with vector ratio based on phase sensitive detection (PSD). This method can separate the real weak signal from noise with high SNR (Signal Noise Ratio). In practical circuit achievement, the weak signal should get through a pre-process channel for filtering and amplifying before it is put into PSD. In order to eliminate DC offset voltage and current, a dynamic adjustment circuit for reducing the operator's offset is designed in the pro-process channel. The advantages and effectiveness of this method and circuit are verified by experimental testing.
提出了一种基于相敏检测(PSD)的矢量比弱容量测量方法。该方法可以将真实的弱信号从高信噪比的噪声中分离出来。在实际的电路实现中,弱信号在进入PSD前要经过预处理通道进行滤波和放大。为了消除直流偏置电压和电流,在前处理通道中设计了减小操作人员偏置的动态调整电路。通过实验验证了该方法和电路的优越性和有效性。
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引用次数: 1
期刊
2016 IEEE International Conference on Electronic Information and Communication Technology (ICEICT)
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