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2010 INTERNATIONAL CONFERENCE ON COMMUNICATION CONTROL AND COMPUTING TECHNOLOGIES最新文献

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Multiscale wavelet energies and Relative Energy based Denoising of ECG signal 基于多尺度小波能量和相对能量的心电信号去噪
Pub Date : 2010-12-17 DOI: 10.1109/ICCCCT.2010.5670602
L. Sharma, S. Dandapat, A. Mahanta
In this work, a novel denoising algorithm based on relative energies of Wavelet subbands and estimated noise variance is proposed for Electrocardiogram (ECG) signal. The proposed algorithm is based on Relative Energy Denoising (RED) factor which is a function of Energy Contribution Efficiency (ECE), Details Energy Contribution Efficiency (DECE) and the estimated noise variance of Wavelet subbands. The algorithm is tested with PTB Diagnostic ECG Database and CSE Multilead Measurement Library. Wavelet filtered signal fidelity is evaluated using Percentage Root Mean Square Difference (PRD), Wavelet Weighted Percentage Root Mean Square Difference (WWPRD) and Wavelet Energy Based Diagnostic Distortion (WEDD) Measure. The results are compared qualitatively and quantitatively with few existing gold standard thresholding methods. The proposed denoising method shows PRD, WWPRD and WEDD values as 5.0966, 14.8554 and 1.0677 respectively.
本文提出了一种基于小波子带相对能量和估计噪声方差的心电信号去噪算法。该算法基于相对能量去噪因子(RED),该因子是能量贡献效率(ECE)、细节能量贡献效率(DECE)和小波子带估计噪声方差的函数。该算法在PTB诊断心电数据库和CSE多导联测量库中进行了测试。采用百分比均方根差(PRD)、小波加权百分比均方根差(WWPRD)和基于小波能量的诊断失真(WEDD)测度来评价小波滤波后的信号保真度。结果与现有几种金标准阈值法进行了定性和定量比较。所提出的去噪方法显示,PRD、WWPRD和WEDD值分别为5.0966、14.8554和1.0677。
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引用次数: 19
Design of an intelligent wireless Scatternet Sensor network with location estimation 基于位置估计的智能无线散射网传感器网络设计
Pub Date : 2010-12-17 DOI: 10.1109/ICCCCT.2010.5670782
R. Dhaya, V. Sadasivam, R. Kanthavel
Wireless communication devices are widely subjected to intruder attacks and in the existing security system, the algorithm consists of a ranging phase that uses the received signal strength to estimate a network radio map and a localization phase which uses a genetic algorithm to obtain the most likely position of the intruder node within the map using the genetic algorithm which is not time consuming. This paper proposes an intrusion detection system with the proposed LERSS algorithm that effectively calculates the location of the intruder when experimented using tree topology. Additionally, the algorithm has better accuracy, and is capable of locating the intruder both within the same system as well as from outside the system. The random population generation and line of sight problems are overcome by this algorithm. To calculate the distance that enables to locate the position of the intruder accurately thereby providing an intelligent security system.
无线通信设备广泛受到入侵者的攻击,在现有的安全系统中,算法包括使用接收到的信号强度估计网络无线地图的测距阶段和使用遗传算法使用不耗时的遗传算法获得入侵者节点在地图中最可能的位置的定位阶段。本文提出了一种基于LERSS算法的入侵检测系统,该算法在树形拓扑实验时能够有效地计算出入侵者的位置。此外,该算法具有更好的准确性,能够在同一系统内以及系统外定位入侵者。该算法克服了随机种群生成和视线问题。计算能够准确定位入侵者位置的距离,从而提供智能安全系统。
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引用次数: 0
An efficient Voice Activity Detection method for Automatic Tamil Speech Recognition System using VADSOHN algorithm 基于VADSOHN算法的泰米尔语自动语音识别系统中有效的语音活动检测方法
Pub Date : 2010-12-17 DOI: 10.1109/ICCCCT.2010.5670769
V. Radha, C. Vimala, M. Krishnaveni
In the emerging trend of speech technologies, speech/non-speech detection is an unsolved problem, which affects numerous speech related applications. Especially in robust speech recognition, there is always a need for a noise reduction scheme working in combination with a precise Voice Activity Detector (VAD). The approach in this paper is based on filtering Tamil speech signal, which is fed as an input to avoid high-energy noisy component and then to determine the speech/non speech in a given signal. Henceforth this research proposes an improved VAD for Automatic Tamil Speech Recognition System (ATSRS). Four types of Infinite Impulse Response (IIR) filters and three VAD techniques are used for the above-mentioned work. These techniques are compared and the best combination of filter with VAD is proposed for ATSRS. By experimental results the proposed method, which is the combination of elliptic Filter with VAD based on sohn's method, which gives better results more effectively. The performance evaluation is done with the speech quality measures like MSE and PSNR.
在语音技术的新兴趋势中,语音/非语音检测是一个尚未解决的问题,它影响了许多语音相关的应用。特别是在鲁棒语音识别中,总是需要一种与精确的语音活动检测器(VAD)相结合的降噪方案。本文的方法是在对泰米尔语信号进行滤波的基础上,将泰米尔语信号作为输入,避免高能量的噪声成分,进而确定给定信号中的语音/非语音。因此,本研究提出一种改进的泰米尔语自动语音识别系统(ATSRS)的VAD。四种类型的无限脉冲响应(IIR)滤波器和三种VAD技术用于上述工作。对这些技术进行了比较,提出了用于ATSRS的滤波器与VAD的最佳组合。实验结果表明,在sohn方法的基础上,将椭圆滤波器与VAD相结合,能更有效地获得较好的滤波效果。性能评估是用MSE和PSNR等语音质量指标来完成的。
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引用次数: 4
Analysis of linear biconical antenna array 线性双锥天线阵分析
Pub Date : 2010-12-17 DOI: 10.1109/ICCCCT.2010.5670787
C. Subba Rao, SUDHAKAR ALAPATI
The biconical dipole antenna is frequency independent antenna. A dipole antenna is a narrowband and frequency dependent. In this paper a linear array of five biconical antennas with cone angle 30° is modeled in WIPL-D software and analyzed. Radiation pattern, gain, impedance and S- parameter plots of the array are analyzed and presented for 1–5 GHz frequency range. Mathematical equations for the parameters of the array are developed. Values for the parameters of the array are computed.
双圆锥偶极子天线是频率无关的天线。偶极天线是窄带和频率相关的。本文在WIPL-D软件中建立了一个由5个锥角为30°的双锥天线组成的线性阵列,并对其进行了分析。分析并给出了该阵列在1 ~ 5ghz频率范围内的辐射方向图、增益图、阻抗图和S参数图。建立了阵列参数的数学方程。计算数组参数的值。
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引用次数: 0
An efficient cluster-based multi-source Multicast Routing Protocol in mobile ad hoc networks 移动自组网中一种高效的基于集群的多源组播路由协议
Pub Date : 2010-12-17 DOI: 10.1109/ICCCCT.2010.5670749
R. Pandi Selvam, V. Palanisamy
Mobile ad hoc networks are becoming an important concept of modern communication technologies and services. It provides some advantages to this communication world such as self-organizing and decentralization. In this paper, we are going to design a cluster-based multi source multicast routing protocol with new cluster head election, path construction and maintenance techniques. The main objective of this work to compute the maximum performance of proposed routing protocol in various environments, and also it has been compared with On-Demand Multicast Routing Protocol (ODMRP) to prove the better performance of delivery ratio, control overhead and forwarding efficiency.
移动自组网正在成为现代通信技术和业务的一个重要概念。它为这个通信世界提供了一些优势,比如自组织和去中心化。本文设计了一种基于集群的多源组播路由协议,该协议采用了新的簇头选举、路径构建和维护技术。本工作的主要目的是计算所提出的路由协议在各种环境下的最大性能,并将其与按需组播路由协议(ODMRP)进行比较,证明其在投递率、控制开销和转发效率方面具有更好的性能。
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引用次数: 10
Inferring gene interactions from microarray gene expression data using fuzzy Petri net 利用模糊Petri网从微阵列基因表达数据推断基因相互作用
Pub Date : 2010-12-17 DOI: 10.1109/ICCCCT.2010.5670723
R. Hamed
This paper describes the problem of inferring the complex causal relationships among genes from microarray experimental data based on a fuzzy Petri net (FPN). The method derives information on the gene interactions in a highly interpretable form (fuzzy rules) and takes into account dynamical aspects of genes regulation. The approach of the fuzzification of the Petri net is proposed. A token in the FPN is described as a membership function of a linguistic term. A transition, specified as a production rule, can be fired if the conditions satisfied. Additionally, a fuzzy Petri net is used with a recurrent neuro-fuzzy network for the modeling. A case study is used to illustrate the approach. For evaluation, the proposed technique has been tested using real expression data and experimental results show that the use of fuzzy Petri net based technique in gene expression data analysis can be quite effective.
本文描述了基于模糊Petri网(FPN)从微阵列实验数据中推断基因间复杂因果关系的问题。该方法以高度可解释的形式(模糊规则)获取基因相互作用的信息,并考虑到基因调控的动态方面。提出了Petri网的模糊化方法。FPN中的令牌被描述为语言术语的隶属函数。如果满足条件,可以触发作为生成规则指定的转换。此外,将模糊Petri网与递归神经模糊网络相结合进行建模。用一个案例研究来说明这种方法。为了评价所提出的技术,使用真实表达数据进行了测试,实验结果表明,基于模糊Petri网的技术在基因表达数据分析中是非常有效的。
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引用次数: 0
A customized Particle Swarm Optimization algorithm for image enhancement 一种用于图像增强的自定义粒子群优化算法
Pub Date : 2010-12-17 DOI: 10.1109/ICCCCT.2010.5670768
K. Venkatalakshmi, S. Shalinie
Particle Swarm Optimization (PSO) modified to solve image processing problem with reference to enhancement technique is proposed in this paper. The enhancement process is an optimization problem with several constraints. The objective of the proposed PSO is to maximize an objective fitness criterion in order to improve the contrast and detail in an image by adapting the parameters of a novel extension to a local enhancement technique. The feasibility of the proposed method is demonstrated and compared with the standard versions of the PSO based image enhancement technique presented in the literature. The obtained results indicate that the proposed PSO yields better results in terms of the maximization of the number of pixels in the edges and the computational time.
本文提出了一种结合增强技术改进的粒子群算法来解决图像处理问题。增强过程是一个具有多个约束条件的优化问题。提出的粒子群算法的目标是通过将新的扩展参数与局部增强技术相适应,以最大化客观适应度准则,从而提高图像的对比度和细节。本文论证了该方法的可行性,并与文献中提出的基于粒子群的图像增强技术的标准版本进行了比较。结果表明,该算法在最大化边缘像素数和计算时间方面取得了较好的效果。
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引用次数: 12
Measurement of gastric oscillations from finger photoplethysmographic signal using autoregressive model 用自回归模型测量手指光容积脉搏波信号的胃振荡
Pub Date : 2010-12-17 DOI: 10.1109/ICCCCT.2010.5670606
S. Mohamed Yacin, M. Manivannan, V. Srinivasa Chakravarthy
In this article we investigate the presence of gastric motility (GM) oscillation in the lower frequency range of photoplethysmography (PPG) signal. The objective of this article is to analyze the lower frequency oscillations of PPG signal using the novel autoregressive (AR) model and studying the presence of gastric motility (GM) rhythm in finger PPG. We acquired finger PPG and GM (measured using Electrogastrogram, EGG) signals at the sampling rate of 100 Hz simultaneously from 10 healthy subjects for 30 minutes duration in fasting and postprandial states. A lower frequency oscillation (≈ 0.05 Hz) called slow wave was extracted from PPG signal which looks similar to the slow wave of GM in both shape and frequency in the range (0 – 0.1953) Hz using discrete wavelet transform (DWT). In a previous study, we demonstrated that there is a good cross-correlation exists between slow waves on both PPG and EGG signals [Annals of Biomedical Engg. DOI: 10.1007/s10439-010-0113-4]. Here in this study, power spectral density (PSD) of PPG and EGG slow waves were estimated using AR spectral estimation method. Dominant frequencies of PPG and EGG slow wave were estimated and the results imply that finger PPG signal reveals GM related information.
在本文中,我们研究了胃运动(GM)振荡在光容积脉搏波(PPG)信号低频范围内的存在。本文的目的是利用新的自回归(AR)模型分析PPG信号的低频振荡,并研究手指PPG中胃动力(GM)节律的存在。我们采集了10名健康受试者在空腹和餐后状态下连续30分钟的手指PPG和GM(使用胃电图,EGG)信号,采样率为100 Hz。利用离散小波变换(DWT)从PPG信号中提取出一个较低频率的慢波(≈0.05 Hz),该慢波在(0 ~ 0.1953)Hz范围内的形状和频率与GM慢波相似。在之前的研究中,我们证明了PPG和EGG信号的慢波之间存在良好的相互关系[Annals of Biomedical engineering]。DOI: 10.1007 / s10439 - 010 - 0113 - 4]。本研究采用AR谱估计方法估计PPG和EGG慢波的功率谱密度(PSD)。分析了手指PPG信号和EGG慢波的优势频率,结果表明手指PPG信号揭示了GM的相关信息。
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引用次数: 3
Fuzzy logic control of variable speed induction machine wind generation system 变速感应电机风力发电系统的模糊逻辑控制
Pub Date : 2010-12-17 DOI: 10.1109/ICCCCT.2010.5670575
M. Kranthi Kumar Reddy, G. Sreenivasulu
This paper presents the use of fuzzy logic control (FLC) of a variable speed induction machine wind generation system. The generation system uses three fuzzy logic controllers (FLC's), first fuzzy logic controller tracks the generator speed with wind velocity to extract maximum power. Second fuzzy logic controller programs the machine flux for light load efficiency improvement. Third fuzzy logic controller provides robust speed control against wind vortex and turbine oscillatory torque. By selecting appropriate fuzzy rules are designed to tune the parameters of conventional PI controller, the performance of the wind generation system has improved significantly compare to conventional PI controller. The performance of the wind generation system evaluated through the toolbox simulink of matlab.
本文介绍了模糊逻辑控制(FLC)在变速感应电机风力发电系统中的应用。该发电系统采用三个模糊控制器,第一个模糊控制器根据风速跟踪发电机转速,提取最大功率;其次,模糊控制器对机器磁链进行编程,以提高轻载效率。第三,模糊逻辑控制器提供了对风力涡旋和涡轮振荡力矩的鲁棒速度控制。通过选择合适的模糊规则对传统PI控制器的参数进行整定,使风力发电系统的性能比传统PI控制器有了明显的提高。通过matlab的simulink工具箱对风力发电系统的性能进行了评估。
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引用次数: 0
High performance in Network-on-Chip using efficient routing 使用高效路由的片上网络的高性能
Pub Date : 2010-12-17 DOI: 10.1109/ICCCCT.2010.5670554
V. Prabhu, R. Ramachandran
The performance of Network-on-Chip largely depends on the underlying routing techniques, which have two constituencies: output selection and input selection. Previous research on routing techniques for Network on chip has focused on the improvement of output selection. Thispaper investigates the impact of input selection, and presents a novel contention-aware input selection technique fornetwork on chip that improves the routing efficiency. When there are contentions of multiple input channels competing for the same output channel, Contention-aware input selection decides which input channel obtains the access depending on the contention level of the upstreamswitches, which inturn removes possible network congestion. Simulation results with different synthetic and real-life traffic patterns show that, when combined with either deterministic or adaptive output selection, Contention-aware input selection achieves significant better performance than the traditional first-come-first-served input selection,with low hardware overhead.
片上网络的性能在很大程度上取决于底层的路由技术,它有两个方面:输出选择和输入选择。以往对片上网络路由技术的研究主要集中在改进输出选择上。研究了输入选择的影响,提出了一种新的片上网络竞争感知输入选择技术,提高了路由效率。当存在多个输入通道竞争同一输出通道时,竞争感知输入选择根据上游交换机的竞争级别决定哪个输入通道获得访问,从而消除可能的网络拥塞。不同合成流量模式和实际流量模式的仿真结果表明,当与确定性或自适应输出选择相结合时,竞争感知输入选择比传统的先到先服务输入选择具有明显更好的性能,并且硬件开销低。
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引用次数: 0
期刊
2010 INTERNATIONAL CONFERENCE ON COMMUNICATION CONTROL AND COMPUTING TECHNOLOGIES
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