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2013 Third International Conference on Advances in Computing and Communications最新文献

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Reconstruction of Beat Signal in Radar Altimeter Using Signal Processing 利用信号处理技术重建雷达高度表的温度信号
2013 Third International Conference on Advances in Computing and Communications Pub Date : 2013-08-29 DOI: 10.1109/ICACC.2013.38
Geomol George, Arun A. Balakrishnan, T. J. Apren
{"title":"Reconstruction of Beat Signal in Radar Altimeter Using Signal Processing","authors":"Geomol George, Arun A. Balakrishnan, T. J. Apren","doi":"10.1109/ICACC.2013.38","DOIUrl":"https://doi.org/10.1109/ICACC.2013.38","url":null,"abstract":"The frequency modulated continuous wave (FMCW) radar principle has been used in altimeter to measure altitude above the surface of the Earth. Traditionally it has been used in short range application due to its unambiguous range. The enhanced range resolution is a factor for FMCW radars compared with other types of radars. There are theoretical restrictions in the range resolution. This paper deals with reconstruction of beat signal in the discontinuous region of its samples. Furthermore, the signal processing methods like FFT calculations that are used for FMCW radar signals and the possible improvement techniques for these methods are discussed. This technique overcomes the discontinuities in the turnaround region of radar altimeter beat signal for improved FFT measurement. The irregularities are due to the delay of received signal in that region and to overcome this problem, we take the similar samples from both sides of the turnaround region and reconstruct the original signal.","PeriodicalId":109537,"journal":{"name":"2013 Third International Conference on Advances in Computing and Communications","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126941447","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Novel Method of Medical Image Denoising Using Bilateral and NLm Filtering 一种基于双侧滤波和NLm滤波的医学图像去噪方法
2013 Third International Conference on Advances in Computing and Communications Pub Date : 2013-08-29 DOI: 10.1109/ICACC.2013.101
M. Mohan, V. Sheeba
{"title":"A Novel Method of Medical Image Denoising Using Bilateral and NLm Filtering","authors":"M. Mohan, V. Sheeba","doi":"10.1109/ICACC.2013.101","DOIUrl":"https://doi.org/10.1109/ICACC.2013.101","url":null,"abstract":"One of the bottleneck in medical imaging is due to low Signal-to-Noise Ratio(SNR) which requires long and repeated acquisition of the same subject to reduce noise and blur. To obtain a high SNR image without lengthy repeated scans, post processing of data such as denoising plays a critical role. Bilateral and Nonlocal means (NLm) filtering are commonly used procedures for medical image denoising. In this paper we propose a new thresholding scheme to wavelet and contour let based denoising by introducing a scaling factor to universal threshold. Also we propose the aforementioned novel contour let thresholding scheme as a preprocessing step on bilateral filtering and NLm denoising. Simulation results show that the proposed single entity comprising the novel preprocessing step and bilateral or NLm denoising is superior in terms of PSNR and perceptual quality compared to Bilateral filtering or NLm denoising used alone.","PeriodicalId":109537,"journal":{"name":"2013 Third International Conference on Advances in Computing and Communications","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116446747","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 8
A Novel Single-Phase Single-Stage Inverter for Solar Applications 一种新型的太阳能单相单级逆变器
2013 Third International Conference on Advances in Computing and Communications Pub Date : 2013-08-29 DOI: 10.1109/ICACC.2013.73
K. Shafeeque, P. R. Subadhra
{"title":"A Novel Single-Phase Single-Stage Inverter for Solar Applications","authors":"K. Shafeeque, P. R. Subadhra","doi":"10.1109/ICACC.2013.73","DOIUrl":"https://doi.org/10.1109/ICACC.2013.73","url":null,"abstract":"This paper propose a novel single phase single stage inverter for photovoltaic systems. In different to conventional two stage converter, the proposed converter either step-up or step down the PV input dc voltage and convert to ac directly in a single stage. Converter is sourced from a single PV source and a single buck boost inductor as storage element for both half cycles. This results a symmetrical operation without any parameter difference. The configuration is simple, compact and less weight as it has lesser components. Since, the converter works on buck boost principle, it can be used whether required ac voltage is lesser or greater than input PV voltage. It has zero dc component at ac output because of its symmetrical operation and hence a favorable THD. Detailed design based on analysis of the converter is revealed in the paper. Simulation results presented validates the proposed converter topology and its control schemes.","PeriodicalId":109537,"journal":{"name":"2013 Third International Conference on Advances in Computing and Communications","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124059205","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 20
Design and FPGA Implementation of a Programmable Data Rate PSK Digital Demodulator for Onboard and Ground Applications 板载和地用可编程数据速率PSK数字解调器的设计与FPGA实现
2013 Third International Conference on Advances in Computing and Communications Pub Date : 2013-08-29 DOI: 10.1109/ICACC.2013.93
M. Kumar, V. Tank, T. Ram
{"title":"Design and FPGA Implementation of a Programmable Data Rate PSK Digital Demodulator for Onboard and Ground Applications","authors":"M. Kumar, V. Tank, T. Ram","doi":"10.1109/ICACC.2013.93","DOIUrl":"https://doi.org/10.1109/ICACC.2013.93","url":null,"abstract":"In this paper, the design and FPGA implementation of a Digital QPSK Demodulator which supports variable data rates varying from 4.88Kbps to 2Mbps and higher is described. The paper presents the design of carrier and symbol recovery loops in details. The design is made platform independent so that it can be ported to any FPGA device. Proposed design is targeted for Xilinx Virtex-II pro FPGA xc2vp50-6ff 1152 for Hardware proof of concept. The complete demodulator occupies only 13% of the available logic slices in Xilinx Virtex-II pro FPGA device.","PeriodicalId":109537,"journal":{"name":"2013 Third International Conference on Advances in Computing and Communications","volume":"144 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134356574","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Job Scheduling and VM Provisioning in Clouds 云环境下的任务调度和虚拟机发放
2013 Third International Conference on Advances in Computing and Communications Pub Date : 2013-08-29 DOI: 10.1109/ICACC.2013.56
A. C. Edwin, A. Neela Madheswari
{"title":"Job Scheduling and VM Provisioning in Clouds","authors":"A. C. Edwin, A. Neela Madheswari","doi":"10.1109/ICACC.2013.56","DOIUrl":"https://doi.org/10.1109/ICACC.2013.56","url":null,"abstract":"Cloud computing has recently emerged as a new paradigm for hosting and delivering services over the Internet. Job Scheduling plays an important role in Cloud Computing environments. In this paper, the impact of First Come First Served and Earliest Start time (EST) based Job scheduling are compared. It is shown that when EST based Job Scheduling is used, priorities can be set on Cloudlets execution based on their EST. After the scheduling of Cloudlets, Single Threshold based VM provisioning or Two Threshold based VM provisioning is done at the Cloud Provider. In the proposed Two Threshold and Single Threshold based VM provisioning algorithms, a cost effective Data center selection policy is used for selecting the Data center with minimum cost. It can be shown that Service Level Agreement (SLA) violations can be minimized by using Two Threshold based VM provisioning algorithm when compared to Single Threshold based VM provisioning algorithm. It is observed that profit of Cloud Service is increased by Two Threshold based VM provisioning algorithm.","PeriodicalId":109537,"journal":{"name":"2013 Third International Conference on Advances in Computing and Communications","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130891273","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 10
Controlling of Back to Back Converter for Load Sharing in Microgrid and Utility Grid 微电网和公用电网负荷分担的背靠背变流器控制
2013 Third International Conference on Advances in Computing and Communications Pub Date : 2013-08-29 DOI: 10.1109/ICACC.2013.104
Nitin P. Choudhary, X. Pote
{"title":"Controlling of Back to Back Converter for Load Sharing in Microgrid and Utility Grid","authors":"Nitin P. Choudhary, X. Pote","doi":"10.1109/ICACC.2013.104","DOIUrl":"https://doi.org/10.1109/ICACC.2013.104","url":null,"abstract":"This paper proposes a method to share a load of utility grid or micro grid using back to back converter. A micro grid which is having distributed generation like photovoltaic power generators, wind power generation, distributed generation using bagaaas as fuel which is wastage material sugar mills. The current availability of biomass in India is estimated at about 500 millions metric tones per year. Studies sponsored by the Ministry has estimated surplus biomass availability at about 120 - 150 million metric tones per annum covering agricultural and forestry residues corresponding to a potential of about 18,000 MW. This apart, about 5000 MW additional power could be generated through bagasse based cogeneration in the country's 550 Sugar mills, if these sugar mills were to adopt technically and economically optimal levels of cogeneration for extracting power from the bagasse produced by them. This extra distribution generation can be shared with utility grid using back to back converter. The back to back converter also provides frequency isolation between utility grid and micro grid.","PeriodicalId":109537,"journal":{"name":"2013 Third International Conference on Advances in Computing and Communications","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131220113","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Localization of a Mobile Autonomous Robot Using Extended Kalman Filter 基于扩展卡尔曼滤波的移动自主机器人定位
2013 Third International Conference on Advances in Computing and Communications Pub Date : 2013-08-29 DOI: 10.1109/ICACC.2013.59
V. Sangale, Abhishek Shendre
{"title":"Localization of a Mobile Autonomous Robot Using Extended Kalman Filter","authors":"V. Sangale, Abhishek Shendre","doi":"10.1109/ICACC.2013.59","DOIUrl":"https://doi.org/10.1109/ICACC.2013.59","url":null,"abstract":"This paper demonstrates an effective method for combining measurements from a gyroscope and rotary wheel encoders (odometry) in mobile robot localization. Sensor fusion of this kind is done using an Extended Kalman filter obtained from the values of above sensors for a mobile autonomous robot. Many such methods implement a statistical model that describes the behaviour of the gyroscope and the odometry component. However, because these systems are based on models, they cannot anticipate the unpredictable and potentially \"catastrophic\" effects of irregularities and frictional changes occasionally encountered on the floor. We present experimental evidence that non-systematic odometry error sources impact the robot's motion. Therefore a new approach has been developed based on a study of the physical interaction between ground and the robot. This approach has been implemented by developing an embedded system with ARM 7 based LPC2148 micro-controller. Experimental results show that the proposed method effectively reduces the localization error while yielding feasible parameter estimation.","PeriodicalId":109537,"journal":{"name":"2013 Third International Conference on Advances in Computing and Communications","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131259328","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Fractional Fuzzy PID Controller for Speed Control of DC Motor 分式模糊PID控制器用于直流电机转速控制
2013 Third International Conference on Advances in Computing and Communications Pub Date : 2013-08-29 DOI: 10.1109/ICACC.2013.7
Sushil Kumar Gupta, P. Varshney
{"title":"Fractional Fuzzy PID Controller for Speed Control of DC Motor","authors":"Sushil Kumar Gupta, P. Varshney","doi":"10.1109/ICACC.2013.7","DOIUrl":"https://doi.org/10.1109/ICACC.2013.7","url":null,"abstract":"In this paper, a novel technique for controlling the speed of DC motor is developed. It uses the conventional fuzzy control for controlling the K<sub>p</sub>, K<sub>i &</sub> K<sub>d</sub> of an integer-order PID controller along with fractional-order integral and derivative parts. The parameters of the PID controller are first tuned using Ziegler Nichols. Then, using GA, optimized solutions for K<sub>p</sub>, K<sub>i &</sub> K<sub>d</sub> and λ & μ (which are the fractional components of integral & derivative parts) are obtained. A Fuzzy Logic Controller (FLC) whose inputs are error & change in error is designed to obtained the crisp values of K<sub>p</sub>, K<sub>i &</sub> K<sub>d</sub>. These values along with the results of GA, are combined to yield better performance. Simulation results are presented in MATLAB. These results are compared with the conventional PID & fractional-order PID simulation results and it is observed that the proposed technique gives better performance.","PeriodicalId":109537,"journal":{"name":"2013 Third International Conference on Advances in Computing and Communications","volume":"80 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132590742","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 18
Modeling and Design of a Novel Control Algorithm for Grid Connected Photovoltaic (PV) Inverter System 一种新型并网光伏逆变器系统控制算法建模与设计
2013 Third International Conference on Advances in Computing and Communications Pub Date : 2013-08-29 DOI: 10.1109/ICACC.2013.77
Ayaz Ahmad, L. Rajaji
{"title":"Modeling and Design of a Novel Control Algorithm for Grid Connected Photovoltaic (PV) Inverter System","authors":"Ayaz Ahmad, L. Rajaji","doi":"10.1109/ICACC.2013.77","DOIUrl":"https://doi.org/10.1109/ICACC.2013.77","url":null,"abstract":"Renewable sources has always seen as a good alternative for harvesting useful energy. Solar has a huge potential to contribute towards the power demands in almost every country. Harvesting the solar power efficiently is always challenging since it involves the high initial cost. To capture the maximum sun light to convert it to useful energy, a well-designed electronics circuit and an efficient control algorithm is needed. Maximum power point tracking (MPPT) techniques helps us in extracting maximum power from the sun light. This paper present a novel MPPT control algorithm that makes use of Adaptive Nuero-Fuzzy inference system (ANFIS). In fact, the ANFIS has a distinct generalization ability for the nonlinear and dynamic behavior of the PV generator. The ANFIS is trained to generate maximum power at inverter output taking into account the continuously varying nature of solar irradiance and temperature. The system ensures the maximum MPPT efficiency and thus maximum power at the inverter terminal. Matlab/Simulink based model of solar system is used and result analysis is carried out.","PeriodicalId":109537,"journal":{"name":"2013 Third International Conference on Advances in Computing and Communications","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133213292","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
Integrating Encryption Technique in Authentication of Multicast Protocol for Ad-Hoc Networks 集成加密技术在Ad-Hoc网络组播协议认证中的应用
2013 Third International Conference on Advances in Computing and Communications Pub Date : 2013-08-29 DOI: 10.1109/ICACC.2013.90
Tintu Devasia, R. Visakh
{"title":"Integrating Encryption Technique in Authentication of Multicast Protocol for Ad-Hoc Networks","authors":"Tintu Devasia, R. Visakh","doi":"10.1109/ICACC.2013.90","DOIUrl":"https://doi.org/10.1109/ICACC.2013.90","url":null,"abstract":"Ad-hoc networks are infrastructure-less and without central administration control, minimal configuration and quick deployment make ad-hoc networks suitable for emergency situations like natural disasters or military conflicts. These applications require multicast data transmissions and the data has to be securely passed through the network to the intended receivers. The techniques that are applied for security should also prevent an opponent from learning the contents of these transmissions. Several authentication protocols have been proposed to improve the security of multicast traffic. But not much work has been done on transmitting the data securely in multicast traffic. In the proposed method symmetric encryption is applied to provide confidentiality along with message authentication codes. The performance of various symmetric algorithms such as AES, DES, 3DES and blowfish to the proposed method is analyzed. Simulation results are given to demonstrate the effectiveness of each algorithm.","PeriodicalId":109537,"journal":{"name":"2013 Third International Conference on Advances in Computing and Communications","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124555357","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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