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EUROCON 2007 - The International Conference on "Computer as a Tool"最新文献

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Design of Equiripple 2-D Linear-Phase FIR Notch Filters 等纹波二维线性相位FIR陷波滤波器的设计
EUROCON 2007 - The International Conference on "Computer as a Tool" Pub Date : 2007-12-26 DOI: 10.1109/EURCON.2007.4400414
F. Wysocka-Schillak
{"title":"Design of Equiripple 2-D Linear-Phase FIR Notch Filters","authors":"F. Wysocka-Schillak","doi":"10.1109/EURCON.2007.4400414","DOIUrl":"https://doi.org/10.1109/EURCON.2007.4400414","url":null,"abstract":"In the paper, a new approach for the design of 2D linear-phase FIR notch filters is proposed. This approach is based on the equiripple error criterion. The notch filter design problem is transformed into an equivalent constrained optimization problem. The filter coefficients vector is defined and a suitable objective function is introduced. Two numerical examples are presented to illustrate the performance of the proposed method. A comparison with the least-squared design is also included.","PeriodicalId":191423,"journal":{"name":"EUROCON 2007 - The International Conference on \"Computer as a Tool\"","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129458155","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: 5
Mixed H∞/H2 with pole-placement design of robust LMI-based output feedback controllers for multi-area load frequency control 基于鲁棒lmi的混合H∞/H2输出反馈控制器多区域负荷频率控制设计
EUROCON 2007 - The International Conference on "Computer as a Tool" Pub Date : 2007-12-26 DOI: 10.1109/EURCON.2007.4400287
A. Bensenouci, A. Ghany
{"title":"Mixed H∞/H2 with pole-placement design of robust LMI-based output feedback controllers for multi-area load frequency control","authors":"A. Bensenouci, A. Ghany","doi":"10.1109/EURCON.2007.4400287","DOIUrl":"https://doi.org/10.1109/EURCON.2007.4400287","url":null,"abstract":"In this paper, mixed H<sub>∞</sub>/H<sub>2</sub> control theory with pole-placement is applied to design centralized and decentralized robust output feedback controllers for load frequency control (LFC) of interconnected power systems. In the first stage, the original (full) system is taken as one block, i.e., centralized LFC system. In a second stage, it is decomposed into subsystems using the overlapping decentralization technique to obtain decentralized LFC system. Output feedback controllers are then designed, for both centralized and decentralized LFC, using the mixed H<sub>∞</sub>/H<sub>2</sub> that is solved using linear matrix inequalities (LMI) technique. The role of H<sub>∞</sub> is to minimize the disturbance effect on the output represented by the area frequencies whereas H<sub>2</sub> is used to improve the transients in the tie-line powers. Pole-placement technique is used in conjunction with H<sub>∞</sub> and H<sub>2</sub> to place the system poles in a desired region. The separate effects of H<sub>∞</sub> , H<sub>2</sub> besides the mixed H<sub>∞</sub>/H<sub>2</sub> together with pole-placement on the system response are carried out for comparison purposes. The effects of the main design parameter of the mixed H<sub>∞</sub>/H<sub>2</sub> technique with shifted poles in the complex s-plane are investigated and the results are discussed The system performance is analyzed through simulating severe disturbances and wide parameters variation in the presence on the system inherent nonlinearity. In both centralized and decentralized cases, the system with the designed robust controllers incorporated is found to fulfill the main LFC requirements.","PeriodicalId":191423,"journal":{"name":"EUROCON 2007 - The International Conference on \"Computer as a Tool\"","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129488173","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: 32
System optimization for energy measurements of EUV radiation pulses EUV辐射脉冲能量测量系统优化
EUROCON 2007 - The International Conference on "Computer as a Tool" Pub Date : 2007-12-26 DOI: 10.1109/EURCON.2007.4400587
J. Mikołajczyk, Z. Bielecki
{"title":"System optimization for energy measurements of EUV radiation pulses","authors":"J. Mikołajczyk, Z. Bielecki","doi":"10.1109/EURCON.2007.4400587","DOIUrl":"https://doi.org/10.1109/EURCON.2007.4400587","url":null,"abstract":"The paper presents a detection system for energy measurement of extreme ultraviolet radiation (EUV). The system consists of a calibrated silicon photodiode and a single multilayer mirror. It can be used for energy measurements of radiation pulses at 13.5 plusmn 0.5 nm wavelength range (FWHM = 7.3%). A construction of the system was optimized for operation with a laser-plasma source with gas puff target. The system provides energy measurements with uncertainty of 7.2%. Influence of particular system elements on uncertainty of the energy measurement.","PeriodicalId":191423,"journal":{"name":"EUROCON 2007 - The International Conference on \"Computer as a Tool\"","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129868889","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
Control Strategies of the Variable Speed Generating Systems 变速发电系统的控制策略
EUROCON 2007 - The International Conference on "Computer as a Tool" Pub Date : 2007-12-26 DOI: 10.1109/EURCON.2007.4400682
Z. Chlodnicki, W. Koczara, N. Al-Khayat
{"title":"Control Strategies of the Variable Speed Generating Systems","authors":"Z. Chlodnicki, W. Koczara, N. Al-Khayat","doi":"10.1109/EURCON.2007.4400682","DOIUrl":"https://doi.org/10.1109/EURCON.2007.4400682","url":null,"abstract":"The paper presents a variable speed stand alone generating system. Such system called also as adjustable speed generating system is a modern technique that has great number of advantages over conventional synchronous generator driven with constant speed. In the adjustable speed generating system the prime mover drives a permanent magnet generator producing variable frequency and amplitude AC voltage. The variable voltage is conditioned by an AC/AC power electronic converter providing high quality multiphase AC sinusoidal voltage. The decoupling of the speed of the generator and output voltage frequency provides new way for optimizing prime mover like reducing of rated power, weight, emission and size and other optimization activities. In such generating systems prime mover speed control strategy is very important subject of investigation. The paper shows methods of control speed in stand alone adjustable speed generating systems. The paper presents performance of variable speed generating system according to implemented methods of speed control. The generating system was also equipped with additional controlled energy storage system made from supercapacitor bank. Energy provided by the supercapacitors allows to achieve good performance of the generating system during transient states. A simulation tests preliminary verifier developed methods of speed control, whereas presented laboratory tests results of the variable speed generating system with/without supercapacitor controlled energy storage system validates quality of the output voltage during transient states caused by steps of load.","PeriodicalId":191423,"journal":{"name":"EUROCON 2007 - The International Conference on \"Computer as a Tool\"","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129903878","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
A Proxy for Privacy: the Discreet Box 隐私的代理:谨慎的盒子
EUROCON 2007 - The International Conference on "Computer as a Tool" Pub Date : 2007-12-26 DOI: 10.1109/EURCON.2007.4400521
G. Lioudakis, E. Koutsoloukas, N. Dellas, Sofia Kapellaki, G. Prezerakos, D. Kaklamani, I. Venieris
{"title":"A Proxy for Privacy: the Discreet Box","authors":"G. Lioudakis, E. Koutsoloukas, N. Dellas, Sofia Kapellaki, G. Prezerakos, D. Kaklamani, I. Venieris","doi":"10.1109/EURCON.2007.4400521","DOIUrl":"https://doi.org/10.1109/EURCON.2007.4400521","url":null,"abstract":"The issue of user privacy is constantly brought to the spotlight since an ever increasing number of online services collects and processes personal information from users, in the context of personalized service provision. Although technology makes the collection of data easy, their protection against abuse is left to data protection legislation. However, the privacy requirements, other than being general and abstract terms to be regarded as legislature issues, should be brought down in the technological reality and carefully accounted for in devising technical solutions. In order to limit the disclosure and avoid the misuse of personal data, this paper discusses an architectural proposal for a middleware system that will enforce protection of user privacy through technical means. This goal is facilitated by a combination of a policy framework, a sensible interpretation of regulations into policies and the introduction of a privacy broker, named the discreet box.","PeriodicalId":191423,"journal":{"name":"EUROCON 2007 - The International Conference on \"Computer as a Tool\"","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128212068","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
Development Of Electronics From Tubes To IC Today Possibilities For IC Designers FPGA A Great Opportunity For Projects 电子器件从电子管到集成电路的发展今天对集成电路设计者来说FPGA是一个很好的机会
EUROCON 2007 - The International Conference on "Computer as a Tool" Pub Date : 2007-12-26 DOI: 10.1109/EURCON.2007.4400688
B. Zajc
{"title":"Development Of Electronics From Tubes To IC Today Possibilities For IC Designers FPGA A Great Opportunity For Projects","authors":"B. Zajc","doi":"10.1109/EURCON.2007.4400688","DOIUrl":"https://doi.org/10.1109/EURCON.2007.4400688","url":null,"abstract":"The paper is concerned with important events such as the invention of bipolar transistor, realization of unipolar MOS transistor and announcement of integrated circuits. Also further development of integrated circuits (IC) and state of the art and today possibilities in the IC design, also advantage of programmable arrays, are discussed.","PeriodicalId":191423,"journal":{"name":"EUROCON 2007 - The International Conference on \"Computer as a Tool\"","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128723426","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
Measurements and Analysis of the Propagation Channel for Various Indoor Environments 不同室内环境下传播信道的测量与分析
EUROCON 2007 - The International Conference on "Computer as a Tool" Pub Date : 2007-12-26 DOI: 10.1109/EURCON.2007.4400382
R. Szumny, K. Kurek, S. Kozłowski, J. Modelski
{"title":"Measurements and Analysis of the Propagation Channel for Various Indoor Environments","authors":"R. Szumny, K. Kurek, S. Kozłowski, J. Modelski","doi":"10.1109/EURCON.2007.4400382","DOIUrl":"https://doi.org/10.1109/EURCON.2007.4400382","url":null,"abstract":"The paper presents measurements results of the propagation channel for three types of indoor environments. Basing on these results statistical analysis and comparison of obtained data are presented. Short review of channel profile measurement techniques are also presented. The paper includes discussion of indoor channel propagation type influence on positioning systems accuracy. Measurements were part of EU VI FP RESOLUTION project, in which WUT was responsible for propagation and antennas work package.","PeriodicalId":191423,"journal":{"name":"EUROCON 2007 - The International Conference on \"Computer as a Tool\"","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127223149","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
Ruttier Obstacle Classification by use of Fractional B-spline Wavelets and Moments 基于分数b样条小波和矩的Ruttier障碍分类
EUROCON 2007 - The International Conference on "Computer as a Tool" Pub Date : 2007-12-26 DOI: 10.1109/EURCON.2007.4400674
A. Discant, S. Emerich, E. Lupu, A. Rogozan, A. Bensrhair
{"title":"Ruttier Obstacle Classification by use of Fractional B-spline Wavelets and Moments","authors":"A. Discant, S. Emerich, E. Lupu, A. Rogozan, A. Bensrhair","doi":"10.1109/EURCON.2007.4400674","DOIUrl":"https://doi.org/10.1109/EURCON.2007.4400674","url":null,"abstract":"Applications of wavelet analysis are widespread and cover many fields of scientific research including image processing, classification and recognition. In addition, the mathematical concept of moments has been used for many years in pattern recognition and image processing. We present a new discovered family of splines, named fractional B-splines which we used as mother wavelet functions. The resulted fractional B-spline wavelets constitute a part of the features vector used in our ruttier obstacle classification system. We compared different recognition rates obtained by the use of different mother wavelet functions, but in order to improve the recognition rates, we added first order statistics features and the seven moments of Hu. The artificial vision systems was developed having as model the human system, and therefore the objects recognition task is reduced to a classification using features extracted from images. In our case, the features vector is formed by wavelet transform of fractional B-splines and seven statistics features, followed by the seven moments of Hu.","PeriodicalId":191423,"journal":{"name":"EUROCON 2007 - The International Conference on \"Computer as a Tool\"","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127375744","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
The Read Operation Impact on Charge Stored in the EEPROM Cell 读操作对EEPROM Cell中存储电荷的影响
EUROCON 2007 - The International Conference on "Computer as a Tool" Pub Date : 2007-12-26 DOI: 10.1109/EURCON.2007.4400474
S. Sergey, M. Sergey
{"title":"The Read Operation Impact on Charge Stored in the EEPROM Cell","authors":"S. Sergey, M. Sergey","doi":"10.1109/EURCON.2007.4400474","DOIUrl":"https://doi.org/10.1109/EURCON.2007.4400474","url":null,"abstract":"The operation of memory cells of electrically erasable and programmable memory (EEPROM) for automotive electronics is investigated. The default memory cell and its operation principles are described. Measurement equipment for programming and erasing the cells in the memory array with precise control of programming electrical pulses parameters is described. The method of cell parameters measurement for any single cell in the array is suggested. The reason of disagreement of theoretical estimation and experimentally measured values of floating gate potentials is found. It is suggested, that the fast self-discharge of the floating gates during storage is caused not by thin oxide defects, but the read amplifier circuit concept. The way of increasing the cell reliability is suggested.","PeriodicalId":191423,"journal":{"name":"EUROCON 2007 - The International Conference on \"Computer as a Tool\"","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127454480","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: 1
Modelling of Intelligent Agents for Energy Distribution Control 能量分配控制中的智能体建模
EUROCON 2007 - The International Conference on "Computer as a Tool" Pub Date : 2007-12-26 DOI: 10.1109/EURCON.2007.4400280
I. Uteshevs, A. Levchenkovs, N. Kunicina, M. Gorobetz
{"title":"Modelling of Intelligent Agents for Energy Distribution Control","authors":"I. Uteshevs, A. Levchenkovs, N. Kunicina, M. Gorobetz","doi":"10.1109/EURCON.2007.4400280","DOIUrl":"https://doi.org/10.1109/EURCON.2007.4400280","url":null,"abstract":"The purpose of the paper is to present the model of intelligent control of power network, for mechatronics systems such as public electric transport. The paper presents the model and the Menger's algorithm for optimization of servicing time for electric substations. Algorithm is based on artificial intelligence and allows to solve both static and dynamic optimization problems. An intelligent multi-agent system is used for task solution. Elements of bond graphing are used to describe the intelligent control of power networks. The algorithm is workable as regular maintenance as for emergencies. The workability of the algorithm is checked by an abstract numerical example. The model and the algorithm is realized in computer experiment for intelligent agent system. As an object, Riga electric network is selected. All data for computer experiment coincide with the real object data. As an example of electrical energy consumers Riga tram system is selected. Experiment show the possibility of energy saving by using of intelligent agent-based control and coordination for mechatronics system of Riga trams.","PeriodicalId":191423,"journal":{"name":"EUROCON 2007 - The International Conference on \"Computer as a Tool\"","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128935031","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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