Electrical Control and Communication Engineering最新文献_第8页

Design, Simulation & Concept Verification of 4 × 4, 8 × 8 MIMO With ZF, MMSE and BF Detection Schemes ZF、MMSE和BF检测方案的4×4、8×8 MIMO的设计、仿真和概念验证

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Electrical Control and Communication Engineering Pub Date : 2017-12-01 DOI: 10.1515/ecce-2017-0010

Arun Kumar, P. Vardhan

{"title":"Design, Simulation & Concept Verification of 4 × 4, 8 × 8 MIMO With ZF, MMSE and BF Detection Schemes","authors":"Arun Kumar, P. Vardhan","doi":"10.1515/ecce-2017-0010","DOIUrl":"https://doi.org/10.1515/ecce-2017-0010","url":null,"abstract":"Abstract A conventional MIMO system is designed consisting of 4 antenna elements at both the receiver and transmitter ends. Different kinds of signal detection techniques, namely, zero forcing (ZF), minimum mean square error (MMSE) and beamforming (BF), are used at the receiver end for signal detection. The performance of the system is analyzed by calculating BER vs SNR for each of the above techniques separately. The present work has been thoroughly analyzed and implemented using MATLAB. On the basis of the results obtained, it is summarized that as the values of SNR increase, BER decreases for ZF and MMSE and it almost vanishes to zero even for low SNR values if BF is used. Although ZF and MMSE are suitable for designing a conventional MIMO system with 4 antenna elements, it becomes too difficult for a large number of antenna elements due to its complexity of calculating the inverse of a (N × N) matrix. Based on the results analyzed so far, it is concluded that beamforming (BF) is a suitable technique for designing a system that has a large number of antenna elements at the base station. A further improved system with enhanced performance regarding lower BER for even smaller values of SNR is designed in the present study, consisting of 8 antennas at the base station. The results obtained are enthusiasm-provoking and encouraging for further studies to develop a concept for next-generation wireless communication systems with an optimum design.","PeriodicalId":42365,"journal":{"name":"Electrical Control and Communication Engineering","volume":"13 1","pages":"69 - 74"},"PeriodicalIF":0.7,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41945023","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

Classifying Scaled-Turned-Shifted Objects with Optimal Pixel-to-Scale-Turn-Shift Standard Deviations Ratio in Training 2-Layer Perceptron on Scaled-Turned-Shifted 4800-Featured Objects under Normally Distributed Feature Distortion 在正态分布特征失真下训练4800个特征物体上的2层感知器中，用最优像素-尺度转向偏移标准偏差率对4800个特征对象进行分类

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Electrical Control and Communication Engineering Pub Date : 2017-12-01 DOI: 10.1515/ecce-2017-0007

V. Romanuke

{"title":"Classifying Scaled-Turned-Shifted Objects with Optimal Pixel-to-Scale-Turn-Shift Standard Deviations Ratio in Training 2-Layer Perceptron on Scaled-Turned-Shifted 4800-Featured Objects under Normally Distributed Feature Distortion","authors":"V. Romanuke","doi":"10.1515/ecce-2017-0007","DOIUrl":"https://doi.org/10.1515/ecce-2017-0007","url":null,"abstract":"Abstract The problem of classifying diversely distorted objects is considered. The classifier is a 2-layer perceptron capable of classifying greater amounts of objects in a unit of time. This is an advantage of the 2-layer perceptron over more complex neural networks like the neocognitron, the convolutional neural network, and the deep learning neural networks. Distortion types are scaling, turning, and shifting. The object model is a monochrome 60 × 80 image of the enlarged English alphabet capital letter. Consequently, there are 26 classes of 4800-featured objects. Training sets have a parameter, which is the ratio of the pixel-to-scale-turn-shift standard deviations, which allows controlling normally distributed feature distortion. An optimal ratio is found, at which the performance of the 2-layer perceptron is still unsatisfactory. Then, the best classifier is further trained with additional 438 passes of training sets by increasing the training smoothness tenfold. This aids in decreasing the ultimate classification error percentage from 35.23 % down to 12.92 %. However, the expected practicable distortions are smaller, so the percentage corresponding to them becomes just 1.64 %, which means that only one object out of 61 is misclassified. Such a solution scheme is directly applied to other classification problems, where the number of features is a thousand or a few thousands by a few tens of classes.","PeriodicalId":42365,"journal":{"name":"Electrical Control and Communication Engineering","volume":"13 1","pages":"45 - 54"},"PeriodicalIF":0.7,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1515/ecce-2017-0007","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42124073","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: 2

Computationally Efficient Chaotic Spreading Sequence Selection for Asynchronous DS-CDMA 异步DS-CDMA中计算高效的混沌扩频序列选择

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Electrical Control and Communication Engineering Pub Date : 2017-12-01 DOI: 10.1515/ecce-2017-0011

A. Litvinenko, A. Aboltins

引用次数: 2

A Robust Identification of the Protein Standard Bands in Two-Dimensional Electrophoresis Gel Images 二维电泳凝胶图像中蛋白质标准带的鲁棒性识别

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Electrical Control and Communication Engineering Pub Date : 2017-12-01 DOI: 10.1515/ecce-2017-0009

A. Serackis, D. Matuzevičius, D. Navakauskas, E. Šabanovič, A. Katkevičius, D. Plonis

{"title":"A Robust Identification of the Protein Standard Bands in Two-Dimensional Electrophoresis Gel Images","authors":"A. Serackis, D. Matuzevičius, D. Navakauskas, E. Šabanovič, A. Katkevičius, D. Plonis","doi":"10.1515/ecce-2017-0009","DOIUrl":"https://doi.org/10.1515/ecce-2017-0009","url":null,"abstract":"Abstract The aim of the investigation presented in this paper was to develop a software-based assistant for the protein analysis workflow. The prior characterization of the unknown protein in two-dimensional electrophoresis gel images is performed according to the molecular weight and isoelectric point of each protein spot estimated from the gel image before further sequence analysis by mass spectrometry. The paper presents a method for automatic and robust identification of the protein standard band in a two-dimensional gel image. In addition, the method introduces the identification of the positions of the markers, prepared by using pre-selected proteins with known molecular mass. The robustness of the method was achieved by using special validation rules in the proposed original algorithms. In addition, a self-organizing map-based decision support algorithm is proposed, which takes Gabor coefficients as image features and searches for the differences in preselected vertical image bars. The experimental investigation proved the good performance of the new algorithms included into the proposed method. The detection of the protein standard markers works without modification of algorithm parameters on two-dimensional gel images obtained by using different staining and destaining procedures, which results in different average levels of intensity in the images.","PeriodicalId":42365,"journal":{"name":"Electrical Control and Communication Engineering","volume":"13 1","pages":"63 - 68"},"PeriodicalIF":0.7,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1515/ecce-2017-0009","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43257588","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: 2

Novel PID Tracking Controller for 2DOF Robotic Manipulator System Based on Artificial Bee Colony Algorithm 基于人工蜂群算法的二自由度机器人PID跟踪控制器

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Electrical Control and Communication Engineering Pub Date : 2017-12-01 DOI: 10.1515/ecce-2017-0008

N. A. Elkhateeb, R. Badr

引用次数: 25

Energy Scheduling of Battery Storage Systems in Micro Grids 微电网中蓄电池储能系统的能量调度

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Electrical Control and Communication Engineering Pub Date : 2017-07-01 DOI: 10.1515/ecce-2017-0004

A. Armstorfer, H. Biechl, A. Rosin

引用次数: 7

Modular Power Supply for Micro Resistance Welding 微型电阻焊模块化电源

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Electrical Control and Communication Engineering Pub Date : 2017-07-01 DOI: 10.1515/ecce-2017-0003

Oleksandr F. Bondarenko, I. Verbytskyi, V. Prokopets, Oleksandr Kaloshyn, D. Spitsyn, T. Ryzhakova, Yuliia Kozhushko

{"title":"Modular Power Supply for Micro Resistance Welding","authors":"Oleksandr F. Bondarenko, I. Verbytskyi, V. Prokopets, Oleksandr Kaloshyn, D. Spitsyn, T. Ryzhakova, Yuliia Kozhushko","doi":"10.1515/ecce-2017-0003","DOIUrl":"https://doi.org/10.1515/ecce-2017-0003","url":null,"abstract":"Abstract The study is devoted to the important issue of enhancing the circuitry and characteristics of power supplies for micro resistance welding machines. The aim of the research is to provide high quality input current and to increase the energy efficiency of the output pulse generator by means of improving the circuit topologies of the power supply main blocks. In study, the principle of constructing the power supply for micro resistance welding, which provides high values of output welding current and high accuracy of welding pulse formation, makes it possible to reduce energy losses, and provides high quality of consumed input current, is represented. The multiphase topology of the charger with power factor correction based on SEPIC converters is suggested as the most efficient for charging the supercapacitor storage module. The multicell topology of the supercapacitor energy storage with voltage equalizing is presented. The parameters of the converter cells are evaluated. The calculations of energy efficiency of the power supply’s input and output converters based on suggested topologies are carried out and verified in MATLAB Simulink. The power factor value greater than 99 % is derived.","PeriodicalId":42365,"journal":{"name":"Electrical Control and Communication Engineering","volume":"12 1","pages":"20 - 26"},"PeriodicalIF":0.7,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47453747","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: 7

Organization and Implementation of Online Cytology Quality Assurance Program – Georgian Experience 组织和实施在线细胞学质量保证计划-格鲁吉亚的经验

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Electrical Control and Communication Engineering Pub Date : 2017-07-01 DOI: 10.1515/ecce-2017-0006

E. Kldiashvili, A. Romānovs, N. Shakulashvili, Archil Burduli, Gocha Ghortlishvili, D. Agladze

{"title":"Organization and Implementation of Online Cytology Quality Assurance Program – Georgian Experience","authors":"E. Kldiashvili, A. Romānovs, N. Shakulashvili, Archil Burduli, Gocha Ghortlishvili, D. Agladze","doi":"10.1515/ecce-2017-0006","DOIUrl":"https://doi.org/10.1515/ecce-2017-0006","url":null,"abstract":"Abstract Medical information system (MIS) is at the heart of information technology (IT) implementation policies in healthcare systems around the world. Different architecture and application models of MIS are developed. Despite of obvious advantages and benefits, application of MIS in everyday practice is slow. On the background of analysis of the existing models of MIS in Georgia has been created a multi-user web-based approach. This article will present the architecture of the system and its application for cytology quality assurance programs. Five hundred Georgian language electronic medical records from the cervical screening activity illustrated by images were selected for quality assurance program. The primary goal of the MIS is patient management. However, the system can be used for quality assurance programs. The ideal of healthcare in the information age must be to create a situation where healthcare professionals spend more time creating knowledge from medical information and less time managing medical information. The application of easily available and adaptable technology and improvement of the infrastructure conditions is the basis for eHealth applications. The MIS is perspective and actual technology solution. It can be used for cytology quality assurance programs.","PeriodicalId":42365,"journal":{"name":"Electrical Control and Communication Engineering","volume":"12 1","pages":"40 - 44"},"PeriodicalIF":0.7,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47068404","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

An Experimental Study of Ground-Based Equipment Real Time Data Transfer Possibility by Using Cellular Networks 利用蜂窝网络实现地面设备实时数据传输可能性的实验研究

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Electrical Control and Communication Engineering Pub Date : 2017-07-01 DOI: 10.1515/ecce-2017-0002

Deniss Brodņevs, Aleksandrs Kutins

引用次数: 4

Electronic Phase Shifting in Multipulse Rectifier 多脉冲整流器中的电子移相

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Electrical Control and Communication Engineering Pub Date : 2017-07-01 DOI: 10.1515/ecce-2017-0001

Y. Sokol, V. Zamaruiev, V. Ivakhno, Yurii Voitovych

引用次数: 3