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[1991 Proceedings] 6th Mediterranean Electrotechnical Conference最新文献

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Digital VLSI implementation of a neural processor 数字VLSI实现的一种神经处理器
[1991 Proceedings] 6th Mediterranean Electrotechnical Conference Pub Date : 1991-05-22 DOI: 10.1109/MELCON.1991.161838
F. Castillo, J. Moreno, J. Cabestany
{"title":"Digital VLSI implementation of a neural processor","authors":"F. Castillo, J. Moreno, J. Cabestany","doi":"10.1109/MELCON.1991.161838","DOIUrl":"https://doi.org/10.1109/MELCON.1991.161838","url":null,"abstract":"The design of a digital neural processor based on a VLSI architecture is discussed. Each processor is an element of a systolic array capable of performing the backpropagation algorithm. The processor's internal structure and its characteristics are discussed.<<ETX>>","PeriodicalId":193917,"journal":{"name":"[1991 Proceedings] 6th Mediterranean Electrotechnical Conference","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116026247","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
Video, sampling and network synchronization in a TV codec 电视编解码器中的视频、采样和网络同步
[1991 Proceedings] 6th Mediterranean Electrotechnical Conference Pub Date : 1991-05-22 DOI: 10.1109/MELCON.1991.161870
M. Pereira, N. Vasconcelos, A. Alves
{"title":"Video, sampling and network synchronization in a TV codec","authors":"M. Pereira, N. Vasconcelos, A. Alves","doi":"10.1109/MELCON.1991.161870","DOIUrl":"https://doi.org/10.1109/MELCON.1991.161870","url":null,"abstract":"A 140 Mb/s video codec, (coder/decoder) is described. Special emphasis is given to data compression, frequency accommodation, and video alignment aspects. A scheme based in a ping-pong structure of elastic buffers and PLL, which explores the particular characteristics of the video signal, is presented.<<ETX>>","PeriodicalId":193917,"journal":{"name":"[1991 Proceedings] 6th Mediterranean Electrotechnical Conference","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116149942","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
Neural networks in control systems 控制系统中的神经网络
[1991 Proceedings] 6th Mediterranean Electrotechnical Conference Pub Date : 1991-05-22 DOI: 10.1109/MELCON.1991.161966
S. Saksida, F. Bremsak
{"title":"Neural networks in control systems","authors":"S. Saksida, F. Bremsak","doi":"10.1109/MELCON.1991.161966","DOIUrl":"https://doi.org/10.1109/MELCON.1991.161966","url":null,"abstract":"A modified backpropagation algorithm with a linear output function is discussed from the viewpoint of its convenience in control tasks. Two methods are presented for teaching neural networks to act as an inverse plant. In the simulation example a discrete integrator was used as the plant. The best results were obtained by a combination of both methods.<<ETX>>","PeriodicalId":193917,"journal":{"name":"[1991 Proceedings] 6th Mediterranean Electrotechnical Conference","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122398257","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
Inrush current and speed regulation of induction motor drives 感应电机驱动的浪涌电流和速度调节
[1991 Proceedings] 6th Mediterranean Electrotechnical Conference Pub Date : 1991-05-22 DOI: 10.1109/MELCON.1991.162076
M. Akherraz
{"title":"Inrush current and speed regulation of induction motor drives","authors":"M. Akherraz","doi":"10.1109/MELCON.1991.162076","DOIUrl":"https://doi.org/10.1109/MELCON.1991.162076","url":null,"abstract":"A linear suboptimal control technique is presented which is applied to a voltage source induction motor drive. The main functions of the controller are to counteract external disturbances and to reduce the magnitude of the inrush current during frequency and voltage perturbations and load fluctuations. It is also designed for speed control and regulation with time. Controller inputs are directly related to measurable variables such as current and speed. The outputs are implementable variables such as the power converter's voltage and frequency.<<ETX>>","PeriodicalId":193917,"journal":{"name":"[1991 Proceedings] 6th Mediterranean Electrotechnical Conference","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122431716","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
Multiple choices in assignment and sequencing for discrete event dynamic systems using minimax algebra 用极大极小代数求解离散事件动态系统的多重选择分配与排序
[1991 Proceedings] 6th Mediterranean Electrotechnical Conference Pub Date : 1991-05-22 DOI: 10.1109/MELCON.1991.162000
M. Aicardi, A. Di Febbraro, R. Minciardi
{"title":"Multiple choices in assignment and sequencing for discrete event dynamic systems using minimax algebra","authors":"M. Aicardi, A. Di Febbraro, R. Minciardi","doi":"10.1109/MELCON.1991.162000","DOIUrl":"https://doi.org/10.1109/MELCON.1991.162000","url":null,"abstract":"The possibility is presented of using the minimax algebra technique to analyze and optimize the performances of a certain class of discrete-event systems, where specific choices about the assignment and the sequencing of tasks are to be made. It is shown how to determine a state equation relevant to the discrete-event system and representing every considered decisional alternative. Then, by using the minimax algebra resolvent matrix, it is possible to obtain direct dependences of suitable performance indexes for the decisional variables under consideration.<<ETX>>","PeriodicalId":193917,"journal":{"name":"[1991 Proceedings] 6th Mediterranean Electrotechnical Conference","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122526531","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
Design of speed digital control interface to AC-drivers 交流驱动器速度数字控制接口的设计
[1991 Proceedings] 6th Mediterranean Electrotechnical Conference Pub Date : 1991-05-22 DOI: 10.1109/MELCON.1991.162075
A. Diez, F. Mateos, J. Cancelas, J. A. Sirgo, F. Briz
{"title":"Design of speed digital control interface to AC-drivers","authors":"A. Diez, F. Mateos, J. Cancelas, J. A. Sirgo, F. Briz","doi":"10.1109/MELCON.1991.162075","DOIUrl":"https://doi.org/10.1109/MELCON.1991.162075","url":null,"abstract":"Developments in power electronics have led to the availability of a large number of commercial converters and to the increasing popularity of asynchronous motors in variable-speed applications. A software-hardware interface is presented for asynchronous motor digital speed control based on commercial converters. It is shown that the most important parameters of the control system (gain, integral action, derivative action, and sampling period) can be changed. In this way, the influence of these parameters on the system response can be analyzed. The hardware interface allows the use of commercial inverters in AC motor digital speed control.<<ETX>>","PeriodicalId":193917,"journal":{"name":"[1991 Proceedings] 6th Mediterranean Electrotechnical Conference","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114189632","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
VSS theory in a control synthesis of robots with AC drives 交流驱动机器人控制综合中的VSS理论
[1991 Proceedings] 6th Mediterranean Electrotechnical Conference Pub Date : 1991-05-22 DOI: 10.1109/MELCON.1991.161994
B. Curk, K. Jezernik
{"title":"VSS theory in a control synthesis of robots with AC drives","authors":"B. Curk, K. Jezernik","doi":"10.1109/MELCON.1991.161994","DOIUrl":"https://doi.org/10.1109/MELCON.1991.161994","url":null,"abstract":"A control approach is proposed for robust, accurate trajectory tracking of manipulators based on the variable-structure system (VSS) theory. A problem of the incorporation of AC drives with switching torque control into a robot system is discussed.<<ETX>>","PeriodicalId":193917,"journal":{"name":"[1991 Proceedings] 6th Mediterranean Electrotechnical Conference","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129500521","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
Implementing robots in 'classical' factories, a difficult task for the East-European industries 在“传统”工厂实施机器人，这对东欧工业来说是一项艰巨的任务
[1991 Proceedings] 6th Mediterranean Electrotechnical Conference Pub Date : 1991-05-22 DOI: 10.1109/MELCON.1991.161997
F.W. Kovacs
{"title":"Implementing robots in 'classical' factories, a difficult task for the East-European industries","authors":"F.W. Kovacs","doi":"10.1109/MELCON.1991.161997","DOIUrl":"https://doi.org/10.1109/MELCON.1991.161997","url":null,"abstract":"An assessment is made of the problems faced by East European firms in implementing robots in their factories. The author highlights problems encountered in Romania. The need for robots in the factories is assessed.<<ETX>>","PeriodicalId":193917,"journal":{"name":"[1991 Proceedings] 6th Mediterranean Electrotechnical Conference","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128215566","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
On the evaluation of computer systems for robot control 机器人控制计算机系统的评价
[1991 Proceedings] 6th Mediterranean Electrotechnical Conference Pub Date : 1991-05-22 DOI: 10.1109/MELCON.1991.161985
J. Machado, J.L.M. de Carvalho, A. Galhano
{"title":"On the evaluation of computer systems for robot control","authors":"J. Machado, J.L.M. de Carvalho, A. Galhano","doi":"10.1109/MELCON.1991.161985","DOIUrl":"https://doi.org/10.1109/MELCON.1991.161985","url":null,"abstract":"The calculation load of different logical and arithmetic operations and the capabilities of several computer systems are evaluated. This analysis reveals that some limitations can be alleviated through the adoption of techniques associated with the data representation. Such techniques not only achieve more efficient management of the computational resources but also provide deeper insight into developments for future control architectures.<<ETX>>","PeriodicalId":193917,"journal":{"name":"[1991 Proceedings] 6th Mediterranean Electrotechnical Conference","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128694122","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 optimal time slot assignment algorithm in SS/TDMA system with intersatellite link 星间链路SS/TDMA系统时隙最优分配算法
[1991 Proceedings] 6th Mediterranean Electrotechnical Conference Pub Date : 1991-05-22 DOI: 10.1109/MELCON.1991.161918
M. El-Soudani, M. El-Ghonemi
{"title":"An optimal time slot assignment algorithm in SS/TDMA system with intersatellite link","authors":"M. El-Soudani, M. El-Ghonemi","doi":"10.1109/MELCON.1991.161918","DOIUrl":"https://doi.org/10.1109/MELCON.1991.161918","url":null,"abstract":"The time slot assignment problem in a cluster of two satellites interconnected via an intersatellite link is considered. It is shown how the optimal switching algorithm proposed by A.A. Bertossi et al. (1987) can be applied to a more general case where the number of uplink and downlink beams are not equal for each satellite in the cluster. Moreover, each uplink or downlink beam can have a different bandwidth. Details of the scheduling algorithm are given together with an illustrative example.<<ETX>>","PeriodicalId":193917,"journal":{"name":"[1991 Proceedings] 6th Mediterranean Electrotechnical Conference","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128336890","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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