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The IEEE Region 8 EUROCON 2003. Computer as a Tool.最新文献

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Simulating and calculating sky luminance distribution with CIE standard DS 011.2 用CIE标准ds011.2对天空亮度分布进行模拟计算
The IEEE Region 8 EUROCON 2003. Computer as a Tool. Pub Date : 2003-12-03 DOI: 10.1109/EURCON.2003.1248078
M. Kobav, G. Bizjak
{"title":"Simulating and calculating sky luminance distribution with CIE standard DS 011.2","authors":"M. Kobav, G. Bizjak","doi":"10.1109/EURCON.2003.1248078","DOIUrl":"https://doi.org/10.1109/EURCON.2003.1248078","url":null,"abstract":"For over half a century, the experts have been trying to describe the daylight and sky luminance distribution with different models. Different approaches were used to describe the luminance of sky in different weather and climactic conditions. But until recently, only two types of sky had been standardized: The CIE Standard Clear Sky and Overcast Sky. As the use of daylight is gaining on importance in the lighting design, the TC 3 at CIE also started drafting a standard description of other types of sky between clear and overcast sky. The new standard will be used in calculations of lighting conditions in interiors lit by natural daylight. In the paper, the new CIE standard is described together with two computer programs developed in our laboratory. The first program is used for calculation of the position of the Sun according to the point of observation on the Earth and time (date). The position of the Sun is then used in the second program for calculation of the sky luminance distribution according to the proposed standard. The program calculates the luminance of 77 patches representing the sky vault. The luminance of this sky model will then be used for calculating lighting conditions in interiors lit by daylight.","PeriodicalId":337983,"journal":{"name":"The IEEE Region 8 EUROCON 2003. Computer as a Tool.","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133447222","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: 11
Artificial immune systems in solving routing problems 人工免疫系统解决路线问题
The IEEE Region 8 EUROCON 2003. Computer as a Tool. Pub Date : 2003-12-03 DOI: 10.1109/EURCON.2003.1247979
H. Keko, M. Skok, D. Skrlec
{"title":"Artificial immune systems in solving routing problems","authors":"H. Keko, M. Skok, D. Skrlec","doi":"10.1109/EURCON.2003.1247979","DOIUrl":"https://doi.org/10.1109/EURCON.2003.1247979","url":null,"abstract":"Successful planning of electrical distribution networks is a complex problem. Besides the well-known radial network layout, in Europe, particularly in Croatia, the distribution networks are also loop or link structured. In order to be solved, network optimization problem is translated into some known combinatorial problems. When networks are loop-structured, the traveling salesman problem (TSP) is commonly used. The combinatorial problems like TSP cannot be solved exactly and evolutionary algorithms have been successful in solving these problems. Although, they are shown as very efficient, progress is still expected concerning the stability and lesser dependency on input parameters. In addition, evolutionary techniques for solving combinatorial problems often do not pay attention to existing knowledge about the problem. An improvement of the classic genetic algorithm used for solving the TSP is shown here, inspired by artificial immune systems techniques. Special attention is also paid to object-oriented design of the application and achieved benefits.","PeriodicalId":337983,"journal":{"name":"The IEEE Region 8 EUROCON 2003. Computer as a Tool.","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133709145","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: 19
Improving speech recognition robustness using non-standard windows 改进语音识别鲁棒性使用非标准窗口
The IEEE Region 8 EUROCON 2003. Computer as a Tool. Pub Date : 2003-12-03 DOI: 10.1109/EURCON.2003.1248175
Robert Rozman, D. Kodek
{"title":"Improving speech recognition robustness using non-standard windows","authors":"Robert Rozman, D. Kodek","doi":"10.1109/EURCON.2003.1248175","DOIUrl":"https://doi.org/10.1109/EURCON.2003.1248175","url":null,"abstract":"The windowing problem of short-time frequency analysis in speech recognition systems (SRSs) is considered. Design possibilities for different non-standard window sequences are presented. The traditional \"digital filtering\" approach to the design of finite window sequences with linear and nonlinear phase response is examined. Since human hearing is relatively insensitive to phase distortions of speech signals, ideas of alternative windows with nonlinear phase response are also investigated. The two most promising design methods for nonlinear phase windows are discussed. Practical performance comparison of such windows with the Hamming window on two real SRSs is presented. They show that the non-standard window sequences can contribute to greater SRS robustness. Additional research on non-standard windows and the parameterization process as a whole is suggested.","PeriodicalId":337983,"journal":{"name":"The IEEE Region 8 EUROCON 2003. Computer as a Tool.","volume":"123 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123070012","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
Computer aided-design of band-pass filters 带通滤波器的计算机辅助设计
The IEEE Region 8 EUROCON 2003. Computer as a Tool. Pub Date : 2003-12-03 DOI: 10.1109/EURCON.2003.1247984
A. García-Lampérez, M. Salazar-Palma, M.J. Padilla-Cruz, I. Hidalgo-Carpintero
{"title":"Computer aided-design of band-pass filters","authors":"A. García-Lampérez, M. Salazar-Palma, M.J. Padilla-Cruz, I. Hidalgo-Carpintero","doi":"10.1109/EURCON.2003.1247984","DOIUrl":"https://doi.org/10.1109/EURCON.2003.1247984","url":null,"abstract":"An efficient and versatile CAD tool for the design and synthesis of narrow band, band-pass microwave filters with generalized Chebyshev transfer function has been developed. The program allows the insertion of transfer function zeros at prescribed positions. Thus, it is suitable for asymmetric response or self-equalized filters. The location of the zeros can be optimized in order to comply with insertion loss and/or group delay specification masks. Subsequently, band-pass prototypes may be obtained with several topologies, namely canonical, in-line, cascaded triplets, cascaded quadruplets and combinations of them. A method based on gradient optimization that allows exact or approximate synthesis of filters is also available. The software is specially meant for the design of dielectric resonator filters with strict selectivity requirements. Some of its features are very well suited for predistortion techniques and easy tuning of these filters.","PeriodicalId":337983,"journal":{"name":"The IEEE Region 8 EUROCON 2003. Computer as a Tool.","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128743259","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
Distributed system for lawful interception in VoIP networks VoIP网络中合法监听的分布式系统
The IEEE Region 8 EUROCON 2003. Computer as a Tool. Pub Date : 2003-12-03 DOI: 10.1109/EURCON.2003.1248010
A. Milanovic, S. Srbljic, I. Raznjevic, D. Sladden, D. Skrobo, I. Matosevic
{"title":"Distributed system for lawful interception in VoIP networks","authors":"A. Milanovic, S. Srbljic, I. Raznjevic, D. Sladden, D. Skrobo, I. Matosevic","doi":"10.1109/EURCON.2003.1248010","DOIUrl":"https://doi.org/10.1109/EURCON.2003.1248010","url":null,"abstract":"Voice over IP is one of the most propulsive technologies today. Significant advantages of VoIP over conventional telephone system provide a major incentive for enterprises and service providers to use the new technology. There is a variety of IP telephony standards, which provide basic models for implementation of VoIP. However, some significant problems still need to be adequately solved. Security, global administration and billing, emergency dialing plans and lawful interception are some of the areas that are being researched. This paper proposes a distributed system for the lawful interception in IP telephony networks. The proposed system has scalable architecture, supports various interception methods, and can be deployed on various network infrastructures. In addition, the system design addresses various issues present in IP networks, for instance; security protocols, network configuration, and standardized data formats. A prototype of the interception system, based on the proposed architecture, has been implemented and tested.","PeriodicalId":337983,"journal":{"name":"The IEEE Region 8 EUROCON 2003. Computer as a Tool.","volume":"136 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116391675","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: 14
Computer simulations for conceptual understanding of dielectrophoresis using JaCoB 计算机模拟的概念理解，使用雅各布
The IEEE Region 8 EUROCON 2003. Computer as a Tool. Pub Date : 2003-12-03 DOI: 10.1109/EURCON.2003.1248218
D. Simeonov, V. Valencic
{"title":"Computer simulations for conceptual understanding of dielectrophoresis using JaCoB","authors":"D. Simeonov, V. Valencic","doi":"10.1109/EURCON.2003.1248218","DOIUrl":"https://doi.org/10.1109/EURCON.2003.1248218","url":null,"abstract":"The paper presents the application of a computer particle simulation program for understanding and visualizing dielectrophoresis. Dielectrophoresis, a phenomenon, where non-charged polarizable dielectric cell sized objects experience electrostatic forces in spatially non-uniform electric fields. Using an appropriate model, based on particle interactions through Coulomb force, it is possible to carry out simulations that accurately match analytical data.","PeriodicalId":337983,"journal":{"name":"The IEEE Region 8 EUROCON 2003. Computer as a Tool.","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114817964","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
Accuracy of 3D motion tracking using a stereocamera 使用立体摄像机进行三维运动跟踪的精度
The IEEE Region 8 EUROCON 2003. Computer as a Tool. Pub Date : 2003-12-03 DOI: 10.1109/EURCON.2003.1248144
M. Divjak, D. Zazula
{"title":"Accuracy of 3D motion tracking using a stereocamera","authors":"M. Divjak, D. Zazula","doi":"10.1109/EURCON.2003.1248144","DOIUrl":"https://doi.org/10.1109/EURCON.2003.1248144","url":null,"abstract":"Several approaches for tracking the movement of objects in 3D space exist. Most of them actually track the motion of special sensors attached to the object of interest. This method is often not appropriate, because it obstructs the free movement of the object. However, some localization approaches depend only on natural properties of objects and don't require any special hardware. In this paper we present the overview of an optical tracking system that uses stereoscopic camera to detect motion. To estimate its accuracy we compare the results with reference measurements made by magnetic tracking device. We report results of several experiments and present the main factors that contribute to the total tracking error. The average difference between the two tracking systems is 1.7 cm. In the end we present a few improvements that could further reduce the tracking error.","PeriodicalId":337983,"journal":{"name":"The IEEE Region 8 EUROCON 2003. Computer as a Tool.","volume":"85 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127435358","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
Simulation and analysis of the digital television signal transmission 数字电视信号传输的仿真与分析
The IEEE Region 8 EUROCON 2003. Computer as a Tool. Pub Date : 2003-12-03 DOI: 10.1109/EURCON.2003.1248065
T. Kratochvil
{"title":"Simulation and analysis of the digital television signal transmission","authors":"T. Kratochvil","doi":"10.1109/EURCON.2003.1248065","DOIUrl":"https://doi.org/10.1109/EURCON.2003.1248065","url":null,"abstract":"This contribution deals with the simulation and analysis of the digital signal transmission in DTV and DVB area. The simulation model and the selected transmission topics are introduced and the simulation software for laboratory modeling and analysis of the transmission distortions is discussed and described. The whole simulation is aimed into research and education area.","PeriodicalId":337983,"journal":{"name":"The IEEE Region 8 EUROCON 2003. Computer as a Tool.","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127078518","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
Induction motor control using torque and rotor flux oriented presentation 感应电机的控制以转矩和转子磁链为主介绍
The IEEE Region 8 EUROCON 2003. Computer as a Tool. Pub Date : 2003-12-03 DOI: 10.1109/EURCON.2003.1248040
M. Rodic, K. Jezernik
{"title":"Induction motor control using torque and rotor flux oriented presentation","authors":"M. Rodic, K. Jezernik","doi":"10.1109/EURCON.2003.1248040","DOIUrl":"https://doi.org/10.1109/EURCON.2003.1248040","url":null,"abstract":"An approach resembling the Direct Torque and Flux Control is presented in the paper. To achieve this, the motor is first presented with the applied torque, rotor speed, rotor flux, and its derivative as states of the system. Then, using this presentation, a control algorithm is developed and evaluated. The main contribution of the work is the direct connection of the torque and flux with the applied stator voltage, which was established with the calculation of the torque and rotor flux derivatives dependant solely on the torque, rotor flux and speed. The difference between the presented method and the classical DTC algorithms is the use of the PWM voltages instead of basic voltage vectors, which results in the reduced torque and flux ripple. The performance is investigated and verified with simulations and experiments.","PeriodicalId":337983,"journal":{"name":"The IEEE Region 8 EUROCON 2003. Computer as a Tool.","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125797588","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
Web-based system for sequential machines decomposition 基于web的顺序机器分解系统
The IEEE Region 8 EUROCON 2003. Computer as a Tool. Pub Date : 2003-12-03 DOI: 10.1109/EURCON.2003.1247978
S. Devadze, E. Fomina, M. Kruus, A. Sudnitson
{"title":"Web-based system for sequential machines decomposition","authors":"S. Devadze, E. Fomina, M. Kruus, A. Sudnitson","doi":"10.1109/EURCON.2003.1247978","DOIUrl":"https://doi.org/10.1109/EURCON.2003.1247978","url":null,"abstract":"This work focuses on particular but comprehensive problem of finite state machine (FSM) decomposition. The task of the FSM decomposition is essential to sequential circuits design optimization in implementation-independent manner. The main goal of the investigations has been to elaborate decomposition synthesis methods for high complexity FSMs and their implementation as Web-based computer design system. The theoretical basis for the investigation has been the algebraic structure theory of FSMs, its further development in accordance with the needs of digital systems design practice to handle the task of partition of hardware description into a network of interconnected FSMs targeting optimization criteria. Consideration of decomposition synthesis leads to investigation of hard NP-complete combinatorial problems. The synthesis system under development should not be only design automation software but it should be a research tool and educational system.","PeriodicalId":337983,"journal":{"name":"The IEEE Region 8 EUROCON 2003. Computer as a Tool.","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126058883","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
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