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2010 International Conference on Electronics and Information Engineering最新文献

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A mathematical technique for RF mixer linearization using second order Intermodulation injection 利用二阶互调注入实现射频混频器线性化的数学技术
Pub Date : 2010-09-02 DOI: 10.1109/ICEIE.2010.5559698
Hojat Khosrowjerdi, H. Nabovati, R. Hedayati
In this paper, an applied mathematical method is proposed in which the effect of second order Intermodulation injection in elimination of the third order Intermodulation is examined and circuit parameters will be achieved with calculation to obtain the best IIP3 response of the circuit. The suggested mathematical technique is applied to a down converter Gilbert cell mixer in 2.4 GHz. This mixer is designed in TSMC 0.18 µm CMOS technology and is simulated using ADS2006A. The operation conditions of the mixer are 1.8 v supply voltage and total current consumption of 2.7 mA. The proposed mixer provides 11 dB conversion gain and 11.1 dB SSB noise figure. This mathematical linearization method causes IM3 to reduce to 14.4 dB and increases IIP3 from 1 dBm to 8 dBm. This technique does not have a significant effect on conversion gain and noise level of the mixer and only requires a small amount of current about 0.05 mA. By performing this technique the best IIP3 will be achieved with 10% error which is remarkable and shows its high ability in linearization.
本文提出了一种应用数学方法,考察了二阶互调注入对消除三阶互调的影响,并通过计算得到电路参数,以获得电路的最佳IIP3响应。将所提出的数学方法应用于2.4 GHz下变频器吉尔伯特单元混频器。该混频器采用台积电0.18µm CMOS技术设计,并采用ADS2006A进行仿真。混合器的工作条件为电源电压1.8 v,总电流消耗2.7 mA。所提出的混频器提供11 dB转换增益和11.1 dB SSB噪声系数。这种数学线性化方法使IM3降低到14.4 dB, IIP3从1 dBm增加到8 dBm。该技术对混频器的转换增益和噪声级影响不大,只需要0.05 mA左右的少量电流。通过执行该技术,可以在10%的误差下获得最佳的IIP3,这是显着的,并且显示了它的高线性化能力。
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引用次数: 1
Research on fuzzy-PID switch controller applied to pressure control of once-through steam generator 模糊pid开关控制器在直流蒸汽发生器压力控制中的应用研究
Pub Date : 2010-09-02 DOI: 10.1109/ICEIE.2010.5559790
Wei Zhang, G. Xia, X. Bian, H. Cai
Once-through steam generator in concentric annuli tube is a new type steam generator which adopts structure of double-face heat transfer. The model of steam generator is built by lumped parameters with moving boundary. In the basis of the built model, static and dynamic characteristics are analyzed. Because thermal capacity is relatively less, it enhances difficulty of control. On the basis of trails of PID controller and fuzzy controller, fuzzy-PID switch controller is applied to regulate tightly pressure of exit steam, using feed water flow as controlled variable in this paper. A mathematic model of once-through steam generator in concentric annuli tube is derived. The application of designed fuzzy-PID switch controller to once-through steam generator in concentric annuli tube pressure control of exit steam is discussed and simulation results show that this algorithm possesses better dynamic performance and robustness than conventional PID strategy.
同心环空管一次性蒸汽发生器是一种采用双面传热结构的新型蒸汽发生器。采用带移动边界的集总参数法建立蒸汽发生器模型。在建立模型的基础上,对其静态和动态特性进行了分析。由于热容量相对较小,增加了控制难度。本文在借鉴PID控制器和模糊控制器的基础上,以给水流量为控制变量,采用模糊-PID开关控制器对出汽压力进行严格调节。建立了同心环空管内一次透式蒸汽发生器的数学模型。讨论了所设计的模糊PID开关控制器在一次性蒸汽发生器同心环空管出口蒸汽压力控制中的应用,仿真结果表明,该算法比传统PID策略具有更好的动态性能和鲁棒性。
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引用次数: 2
Artificial Neural Network based cardiac arrhythmia classification using ECG signal data 基于人工神经网络的心电信号心律失常分类
Pub Date : 2010-09-02 DOI: 10.1109/ICEIE.2010.5559887
S. Jadhav, S. Nalbalwar, A. Ghatol
In this paper we proposed a automated Artificial Neural Network (ANN) based classification system for cardiac arrhythmia using standard 12 lead ECG recordings. In this study, we are mainly interested in producing high confident arrhythmia classification results to be applicable in diagnostic decision support systems. In arrhythmia analysis, it is unavoidable that some attribute values of a person would be missing. Therefore we have replaced these missing attributes by closest column value of the concern class. Multilayer percepron (MLP) feedforward neural network model with static backpropagation algorithm is used to classify arrhythmia cases into normal and abnormal classes. Networks models are trained and tested for UCI ECG arrhythmia data set. This data set is a good environment to test classifiers as it is incomplete and ambiguous bio-signal data collected from total 452 patient cases. The classification performance is evaluated using six measures; sensitivity, specificity, classification accuracy, mean squared error (MSE), receiver operating characteristics (ROC) and area under curve (AUC). Our experimental results give 86.67% testing classification accuracy.
本文提出了一种基于人工神经网络(ANN)的心律失常自动分类系统,该系统使用标准的12导联心电图记录。在这项研究中,我们主要感兴趣的是产生高置信度的心律失常分类结果,以适用于诊断决策支持系统。在心律失常分析中,人的某些属性值丢失是不可避免的。因此,我们用关注类最接近的列值替换了这些缺失的属性。采用多层感知器(Multilayer perceppron, MLP)前馈神经网络模型和静态反向传播算法,将心律失常病例分为正常和异常两类。对UCI心电心律失常数据集的网络模型进行了训练和测试。该数据集是测试分类器的良好环境,因为它是从总共452例患者中收集的不完整和模糊的生物信号数据。采用6个指标对分类效果进行评价;灵敏度、特异性、分类准确度、均方误差(MSE)、受试者工作特征(ROC)和曲线下面积(AUC)。实验结果表明,测试分类准确率为86.67%。
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引用次数: 76
The full reference quality assessment metrics for super resolution of an image: Shedding light or casting shadows? 图像超分辨率的完整参考质量评估指标:散光还是投射阴影?
Pub Date : 2010-09-02 DOI: 10.1109/ICEIE.2010.5559769
T. Ahmad, Shahryar Shafique Quershi
There is a driving need for digital images of high resolution and quality in different Multimedia applications. However, a high resolution digital camera is still very expensive in the market. To meet such demand of today, the super resolution techniques promises to provide a high resolution image for multiple low resolution input images. But to judge the performance of existing super resolution algorithms objectively is a difficult task because lack of sufficient realiable testing tools. In this paper, it is shown that the existing Full Reference (FR) metrics cast shadows on the overall quality of super resolved image so judging super resolution quality using them is not an good idea. The main reasons for that is they do not take the visual masking phenomenon into consideration and also, they depends on the reference input, which itself may be of low quality. Experimental results shows that there is a need for a new Full Reference metric that shed light on the quality of reconstructed image in order to compare the performance of different existing super resolution (SR) methods.
在不同的多媒体应用中,对高分辨率和高质量的数字图像有着迫切的需求。然而,高分辨率数码相机在市场上仍然非常昂贵。为了满足当今的这种需求,超分辨率技术有望为多个低分辨率输入图像提供高分辨率图像。但由于缺乏足够可靠的测试工具,客观地判断现有超分辨率算法的性能是一项艰巨的任务。本文表明,现有的全参考(FR)指标会对超分辨图像的整体质量产生影响,因此使用它们来判断超分辨图像的质量并不是一个好主意。其主要原因是它们没有考虑到视觉掩蔽现象,而且它们依赖于参考输入,而参考输入本身可能质量较低。实验结果表明,为了比较不同的超分辨率(SR)方法的性能,需要一种新的全参考度量(Full Reference metric)来反映重建图像的质量。
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引用次数: 7
Technical report of building a line follower robot 研制直线跟随机器人技术报告
Pub Date : 2010-09-02 DOI: 10.1109/ICEIE.2010.5559826
S. E. M. Bajestani, A. Vosoughinia
The following robot is a intelligent system as a kind of provisional one, which has robot positions corrective feedbacks, toward the black or white line. In general robots incomes are voltages of the circuits and sensors voltages variations. The robot processor which is a micro AVR chip has been set to read the incomes, compare them to the predetermined amounts and ordering to the motors by the driver and the robot outcomes are to move and change the robot's position toward the line in the best way. The traits of this robot comparing to the last ones in this field includes: increasing man oeuvre power with sudden way point changes, excellent and accurate robot renovation and low price for production. This robot can be use for carrying stuff of information's between two special points like to rooms in an office or in a hospital.
下面的机器人是一种临时的智能系统,它有机器人位置矫正反馈,朝向黑线或白线。一般来说,机器人的收入是电路电压和传感器电压的变化。机器人处理器是一个微型AVR芯片,它被设置为读取收入,将它们与预定的数量进行比较,并由驾驶员向电机下命令,机器人的结果是移动并以最佳方式改变机器人的位置。与该领域的最后一款机器人相比,该机器人的特点是:通过突然的路径点变化来增加人力,机器人更新性能优异,精度高,生产价格低。这个机器人可以用来在两个特殊点之间运送信息,比如办公室或医院的房间。
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引用次数: 33
Propose a Framework for knowledge management strategic planning (KMSSP) 提出知识管理战略规划框架
Pub Date : 2010-09-02 DOI: 10.1109/ICEIE.2010.5559819
Hanieh Sadat Beiryaei, Mona Jamporazmay
Organizational knowledge is a valuable asset to survive in dynamic and challenging business environment. Knowledge management (KM) as a process of knowledge acquisition, storage and sharing is a critical managerial priority. In recent days, many firms had invested millions of dollars in KM initiatives especially in knowledge management systems (KMS) intended to improve knowledge sharing and innovation. Fulfilling of Knowledge requirements, knowledge project management and strategic KM, prioritizing and implementing KM projects and most importantly KM-business alignment are all so complicated issue that makes KM strategic planning as vital matter. KMS strategic planning is a solution of leveraging KM and is an important topic for managers and researchers alike. Despite of importance of it, there is lack of comprehensive framework for strategic KMS planning. This paper presents a framework for KMS strategic planning. By applying this framework, strategic KM-business alignment will be achievable.
组织知识是在充满活力和挑战的商业环境中生存的宝贵资产。知识管理作为一个知识获取、存储和共享的过程,是一个重要的管理优先事项。最近,许多公司在知识管理计划上投入了数百万美元,特别是在知识管理系统(KMS)上,旨在改善知识共享和创新。知识需求的实现、知识项目管理和战略性知识管理、知识管理项目的优先排序和实施,以及最重要的知识管理与企业的一致性,这些都是非常复杂的问题,使得知识管理战略规划成为至关重要的问题。知识管理系统战略规划是利用知识管理的一种解决方案,是管理者和研究者共同关注的重要课题。尽管它很重要,但缺乏全面的战略知识管理体系规划框架。本文提出了KMS战略规划的框架。通过应用此框架,可以实现KM-business战略一致性。
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引用次数: 11
A new low cost fault tolerant solution for mesh based NoCs 基于网格的noc低成本容错解决方案
Pub Date : 2010-09-02 DOI: 10.1109/ICEIE.2010.5559766
M. Seyrafi, Arghavan Asad, A. E. Zonouz, R. Berangi, M. Fathy, M. Soryani
In this paper a new fault tolerant routing algorithm with minimum hardware requirements and extremely high fault tolerance for 2D-mesh based NoCs is proposed. The LCFT (Low Cost Fault Tolerant) algorithm, removes the main limitations (forbidden turns) of the famous XY. So not only many new routes will be added to the list of selectable paths as well as deadlock freedom, but also it creates high level of fault tolerance. All these things are yielded only by the cost of adding one more virtual channel (for a total of two). Results show that LCFT algorithm can work well under almost bad conditions of faults in comparison with the already published methods.
本文提出了一种新的基于二维网格noc的最小硬件要求和极高容错性的容错路由算法。LCFT(低成本容错)算法消除了著名的XY算法的主要限制(禁止匝数)。因此,不仅可以将许多新路由添加到可选路径列表中,还可以避免死锁,而且还可以创建高水平的容错性。所有这些都是通过增加一个虚拟通道(总共两个)的成本产生的。结果表明,与已有的方法相比,LCFT算法在几乎恶劣的故障条件下也能很好地工作。
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引用次数: 7
CMOS current reference generator using integrated resistors 采用集成电阻的CMOS电流基准发生器
Pub Date : 2010-09-02 DOI: 10.1109/ICEIE.2010.5559872
Hosung Chun, T. Lehmann
A novel method is proposed that can generate a stable reference current using on-chip integrated resistors without the use of trimming. By optimally combining different types of integrated resistors, the overall resistance variability is reduced below that of the most accurate available resistor. Combining such a resistance with a band-gap reference and a temperature compensation circuit, we implement an on-chip current reference. This circuit is implemented using a standard 0.35um CMOS process with 3V power supply. Monte-Carlo simulations show a nominal reference current (1uA) from a combined resistor varies by ±11.5% over a −10°C to 70°C temperature range. This variation is reduced by a factor of two compared with using a normal resistor. The measured values of the combined resistor and the normal resistor are 1.08MΩ and 1.45MΩ, respectively. This is −10% and +20% deviation from the desired value of 1.2MΩ.
提出了一种利用片上集成电阻器产生稳定参考电流而不需要修边的新方法。通过优化组合不同类型的集成电阻,整体电阻变异性降低到最精确的可用电阻以下。将这种电阻与带隙参考电路和温度补偿电路相结合,我们实现了片上电流参考电路。该电路采用标准的0.35um CMOS工艺和3V电源实现。蒙特卡罗模拟显示,在−10°C至70°C的温度范围内,组合电阻的标称参考电流(1uA)变化为±11.5%。与使用普通电阻器相比,这种变化减少了两倍。组合电阻和普通电阻的测量值分别为1.08MΩ和1.45MΩ。这与1.2MΩ的期望值有- 10%和+20%的偏差。
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引用次数: 15
A novel method for filtering of Gaussian colored noise in images with wavelet transform 用小波变换滤波图像中高斯彩色噪声的新方法
Pub Date : 2010-09-02 DOI: 10.1109/ICEIE.2010.5559894
Tianyi Li, Minghui Wang, W. Xiong
Based on the statistical properties of the colored noise in wavelet domain and the whitening property of wavelet transform, we present a novel method to filter colored noise efficiently. The proposed method treats every detail subband in wavelet domain as a regular image with white noise, and filters the noise using the threshold value algorithm by iteratively performing wavelet decomposition. The image polluted by colored noise is then denoised by doing inverse transform. The method is independent of the correlation parameter of the colored noise. Our simulation results indicate that the proposed method is able to achieve close or better performance in filtering the colored noise with significantly reduced computation cost than existing approaches, and it is also applicable to reduce white noise.
基于彩色噪声在小波域的统计特性和小波变换的白化特性,提出了一种有效滤除彩色噪声的新方法。该方法将小波域的每个细节子带视为带有白噪声的规则图像,并通过迭代进行小波分解,利用阈值算法过滤噪声。然后对被彩色噪声污染的图像进行反变换去噪。该方法不依赖于彩色噪声的相关参数。仿真结果表明,与现有方法相比,该方法在过滤有色噪声方面能够达到相近或更好的效果,且计算量显著降低,同样适用于过滤白噪声。
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引用次数: 1
Segmentation algoritm for touching round grain image 触摸圆形颗粒图像的分割算法
Pub Date : 2010-09-02 DOI: 10.1109/ICEIE.2010.5559878
K. Kiratiratanapruk, W. Sinthupinyo
In this paper, we propose touching round grain segmentation technique based on center of individual grain and concavity of image boundary. The objective of this work is to identify single grain and detect position of touching round grain in binary image. First, center of grain is detected by using conventional technique such as Morphological algorithm and Color component labeling. From the detected centers of grain, we can separate individual grains from clustered grains. The clustered grains are further processed to detect concave points among centers of grain. We then apply several criteria such as distance, the opposite orientation and the angle to each others to determine splitting paths. The experimental results show good performance in separating touching round grains are of benefit for intelligent grain analysis.
本文提出了一种基于单个颗粒中心和图像边界凹凸度的触摸圆颗粒分割技术。本工作的目的是在二值图像中识别单个颗粒和检测触摸圆形颗粒的位置。首先,采用形态学算法和颜色分量标记等传统方法检测纹理中心;根据检测到的颗粒中心,我们可以将单个颗粒与簇状颗粒区分开来。对聚集的晶粒进行进一步处理,检测出晶粒中心之间的凹点。然后我们应用一些标准,如距离,相反的方向和彼此的角度来确定分裂路径。实验结果表明,该方法具有良好的颗粒分离性能,有利于颗粒智能分析。
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引用次数: 6
期刊
2010 International Conference on Electronics and Information Engineering
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