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Efficient estimation of the prediction distance in high resolution seismic marine prospecting 海洋高分辨率地震勘探预测距离的有效估计
Proceedings. Electrotechnical Conference Integrating Research, Industry and Education in Energy and Communication Engineering', Pub Date : 1989-04-11 DOI: 10.1109/MELCON.1989.50031
P. Burrascano, P. Lucci
{"title":"Efficient estimation of the prediction distance in high resolution seismic marine prospecting","authors":"P. Burrascano, P. Lucci","doi":"10.1109/MELCON.1989.50031","DOIUrl":"https://doi.org/10.1109/MELCON.1989.50031","url":null,"abstract":"A novel estimation procedure of the prediction distance in high-resolution seismic marine prospecting is proposed which makes use of filter reflection coefficients evaluated for the main dereverberation procedure. In this way, the computational cost can be reduced. It is also shown that with a VLSI implementation of the processing algorithm, the proposed procedure allows a considerable reduction of hardware complexity.<<ETX>>","PeriodicalId":380214,"journal":{"name":"Proceedings. Electrotechnical Conference Integrating Research, Industry and Education in Energy and Communication Engineering',","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1989-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122337682","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
Transmission systems engineering teaching-a computer-aid approach 传输系统工程教学——计算机辅助教学
Proceedings. Electrotechnical Conference Integrating Research, Industry and Education in Energy and Communication Engineering', Pub Date : 1989-04-11 DOI: 10.1109/MELCON.1989.50148
J. A. Delgado-Penín, J. Serrat-Fernández, R. Valle-Alarcon
{"title":"Transmission systems engineering teaching-a computer-aid approach","authors":"J. A. Delgado-Penín, J. Serrat-Fernández, R. Valle-Alarcon","doi":"10.1109/MELCON.1989.50148","DOIUrl":"https://doi.org/10.1109/MELCON.1989.50148","url":null,"abstract":"The authors discuss a training methodology in telecommunications transmission systems engineering based on a computer-aid approach. They begin with a justification of the uses of digital simulation and highlight its advantages. They then consider the steps in planning simulation experiments. Aspects of the modeling of transmission systems are then examined. A simple experiment is considered which can be used for analyzing digital radiocommunication systems. It is noted that the main advantage of the proposed approach is its versatility in invention and innovation in transmission situations.<<ETX>>","PeriodicalId":380214,"journal":{"name":"Proceedings. Electrotechnical Conference Integrating Research, Industry and Education in Energy and Communication Engineering',","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1989-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122932884","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 SMD capacitor for microstrip circuits 用于微带电路的SMD电容建模
Proceedings. Electrotechnical Conference Integrating Research, Industry and Education in Energy and Communication Engineering', Pub Date : 1989-04-11 DOI: 10.1109/MELCON.1989.50143
P. Vitor, M. Joao Rosario, J. Costa Freire
{"title":"Modelling SMD capacitor for microstrip circuits","authors":"P. Vitor, M. Joao Rosario, J. Costa Freire","doi":"10.1109/MELCON.1989.50143","DOIUrl":"https://doi.org/10.1109/MELCON.1989.50143","url":null,"abstract":"Simple models and a parameter extraction technique for low-cost SMD capacitors mounted on microstrip lines are presented. The models are simple networks, easily implemented in currently available microwave CAD (computer-aided design) programs. Their element values are obtained from the results of vector network analyzer measurements on microstrip structures. Therefore, the models include intrinsically mounting discontinuities. The transmission line parameters values are obtained from the first series self-resonance measured for a ground connection, and the RLC parameter values are obtained from parallel resonances measured with series connection.<<ETX>>","PeriodicalId":380214,"journal":{"name":"Proceedings. Electrotechnical Conference Integrating Research, Industry and Education in Energy and Communication Engineering',","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1989-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127804928","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
Theoretical and experimental characterization of integrated millimeter wave structures 集成毫米波结构的理论和实验表征
Proceedings. Electrotechnical Conference Integrating Research, Industry and Education in Energy and Communication Engineering', Pub Date : 1989-04-11 DOI: 10.1109/MELCON.1989.50141
F. Alessandri, U. Goebel, F. Melai, R. Sorrentino
{"title":"Theoretical and experimental characterization of integrated millimeter wave structures","authors":"F. Alessandri, U. Goebel, F. Melai, R. Sorrentino","doi":"10.1109/MELCON.1989.50141","DOIUrl":"https://doi.org/10.1109/MELCON.1989.50141","url":null,"abstract":"A rigorous theoretical approach is used to characterize quasi-planar transmission lines for millimeter-wave applications. The method takes into account the finite metallization thickness and the presence of grooves for holding the substrate into the housing. An experimental method that allows the characterization of the structures in terms of dominant and higher order modes by a single broadband transmission measurement is considered. Experiments performed on an experimental transmission line consisting of a coplanar waveguide inserted into a nonsymmetrical housing are discussed. This structure offers some advantages over finlines and suspended striplines. Experiments have been performed in the 0.5-15.0 GHz range and are in excellent agreement with theoretical predictions.<<ETX>>","PeriodicalId":380214,"journal":{"name":"Proceedings. Electrotechnical Conference Integrating Research, Industry and Education in Energy and Communication Engineering',","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1989-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127967759","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 specification language for VLSI digital communications systems VLSI数字通信系统的规范语言
Proceedings. Electrotechnical Conference Integrating Research, Industry and Education in Energy and Communication Engineering', Pub Date : 1989-04-11 DOI: 10.1109/MELCON.1989.50081
M. Bolton, A. Bateman, G. Reed
{"title":"A specification language for VLSI digital communications systems","authors":"M. Bolton, A. Bateman, G. Reed","doi":"10.1109/MELCON.1989.50081","DOIUrl":"https://doi.org/10.1109/MELCON.1989.50081","url":null,"abstract":"The authors present results of a preliminary study whose aims are to gain an understanding of the requirements of communications systems designers and to set out the framework for a language and synthesis paradigm compatible with the evolution of the SHADE design system. SHADE is a logic synthesis system for semicustom integrated circuits which accepts specifications at the register transfer level. The authors first set the context by looking at the general problems of specification and architecture synthesis. This is followed by a study of the types of specification language possible. Conclusions are drawn about the requirements of the language discussed. An outline for language design is then given, illustrated with examples, and the structure of a synthesis system based on this language is presented.<<ETX>>","PeriodicalId":380214,"journal":{"name":"Proceedings. Electrotechnical Conference Integrating Research, Industry and Education in Energy and Communication Engineering',","volume":"23 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1989-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126913205","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 comparison between quadratic and sign adaptive iterative algorithms for spikey deconvolution 尖峰反卷积的二次与符号自适应迭代算法比较
Proceedings. Electrotechnical Conference Integrating Research, Industry and Education in Energy and Communication Engineering', Pub Date : 1989-04-11 DOI: 10.1109/MELCON.1989.50013
Antonio Artés-Rodríguez, A.R. Figueiras Vidal, D. Docampo-Amoedo, J. Casar-Corredera
{"title":"A comparison between quadratic and sign adaptive iterative algorithms for spikey deconvolution","authors":"Antonio Artés-Rodríguez, A.R. Figueiras Vidal, D. Docampo-Amoedo, J. Casar-Corredera","doi":"10.1109/MELCON.1989.50013","DOIUrl":"https://doi.org/10.1109/MELCON.1989.50013","url":null,"abstract":"The authors introduce two algorithms in quadratic and sign gradient-type versions for spikey deconvolution based on a double (detection-estimation) formulation of the problem. Both algorithms are based on the application of a selection operator to detect the nonzero values of a solution provided by a standard approach. In the first algorithm, a gradient-type iterative reduction of the error is used. The second algorithm minimizes the signal to be obtained. Their performances using l/sub 1/ and l/sub 2/ norms in the minimization are compared in terms of resolution, robustness, speed of convergence, and computational load.<<ETX>>","PeriodicalId":380214,"journal":{"name":"Proceedings. Electrotechnical Conference Integrating Research, Industry and Education in Energy and Communication Engineering',","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1989-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126077223","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
Single antenna receivers for advanced satellite T/R systems 用于先进卫星T/R系统的单天线接收器
Proceedings. Electrotechnical Conference Integrating Research, Industry and Education in Energy and Communication Engineering', Pub Date : 1989-04-11 DOI: 10.1109/MELCON.1989.50089
G. Bartolucci, F. Giannini, G. Leuzzi, C. Paoloni, M. Ruggieri
{"title":"Single antenna receivers for advanced satellite T/R systems","authors":"G. Bartolucci, F. Giannini, G. Leuzzi, C. Paoloni, M. Ruggieri","doi":"10.1109/MELCON.1989.50089","DOIUrl":"https://doi.org/10.1109/MELCON.1989.50089","url":null,"abstract":"Three active antenna systems have been synthesized for 14-spot European coverage in the down-link range 12.5-12.75 GHz: far-field multibeam antenna, a near-field multibeam antenna, and a direct radiating phased array. The block diagram for all the three antenna systems is shown, assuming that a single antenna is utilized for both transmission and reception. Through a set of diplexers, both receiver and transmitter modules use the shared feeds. The use of a single antenna for both transmission and reception has been shown to be attractive in terms of size and weight reduction. These features conflict, however, with the thermal and interconnecting issues that can arise in practical systems. The transmitter topology and complexity seem important points in the feasibility of the integration with the receiver. In particular, the number and allocation of the power amplifiers are quite critical.<<ETX>>","PeriodicalId":380214,"journal":{"name":"Proceedings. Electrotechnical Conference Integrating Research, Industry and Education in Energy and Communication Engineering',","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1989-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125750032","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
Impact of the computer developments on the education of engineering graduates in electrical machines and drives 计算机发展对电机与驱动工程专业毕业生教育的影响
Proceedings. Electrotechnical Conference Integrating Research, Industry and Education in Energy and Communication Engineering', Pub Date : 1989-04-11 DOI: 10.1109/MELCON.1989.50146
R. Belmans, W. Geysen
{"title":"Impact of the computer developments on the education of engineering graduates in electrical machines and drives","authors":"R. Belmans, W. Geysen","doi":"10.1109/MELCON.1989.50146","DOIUrl":"https://doi.org/10.1109/MELCON.1989.50146","url":null,"abstract":"The impact of modern computer facilities, both hardware and software, on teaching in a classical field such as electrical machines and drives is discussed. It is shown how these developments can help to accomplish the fundamental aims and to make such a classical field as attractive as possible. Particular attention is given to the features of computer-aided design engineering, simulation, and testing insofar as they are of interest in connection with engineering education in this area. It is concluded that computer-aided techniques are extremely important in such a field in two senses: (1) due to their introduction, a broader and more general discussion of the phenomena is feasible, and many restrictions which were found in the classical system can be overcome; and (2) using the same techniques as in other fields of engineering, electrical machine and drive design becomes a very well elaborated example of design as such, rather than only a goal in itself.<<ETX>>","PeriodicalId":380214,"journal":{"name":"Proceedings. Electrotechnical Conference Integrating Research, Industry and Education in Energy and Communication Engineering',","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1989-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126749498","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
Maximum power point tracking technique 最大功率点跟踪技术
Proceedings. Electrotechnical Conference Integrating Research, Industry and Education in Energy and Communication Engineering', Pub Date : 1989-04-11 DOI: 10.1109/MELCON.1989.49971
M. El-Shibini, H.H. Rakha
{"title":"Maximum power point tracking technique","authors":"M. El-Shibini, H.H. Rakha","doi":"10.1109/MELCON.1989.49971","DOIUrl":"https://doi.org/10.1109/MELCON.1989.49971","url":null,"abstract":"It is noted that to overcome the problem of mismatch between solar cells and a given load, maximum power-point tracking should be used. A simple efficient maximum power-point tracking technique is developed. The connection strategy depends on a very simple criterion which is the measurement of the solar radiation level. The control strategy is based on appropriate logic that compares the signs of dP/dt and dV/dt. The proposed technique is applied to the cases of resistive load, resistive load with battery, and dynamic load.<<ETX>>","PeriodicalId":380214,"journal":{"name":"Proceedings. Electrotechnical Conference Integrating Research, Industry and Education in Energy and Communication Engineering',","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1989-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122701271","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: 58
The prediction of the interference and service zones in the VHF/UHF tactical radio systems 甚高频/超高频战术无线电系统干扰区和服务区预测
Proceedings. Electrotechnical Conference Integrating Research, Industry and Education in Energy and Communication Engineering', Pub Date : 1989-04-11 DOI: 10.1109/MELCON.1989.50076
D. Paunovic, M. Dukic, A. Ratković, I. Stojanovic
{"title":"The prediction of the interference and service zones in the VHF/UHF tactical radio systems","authors":"D. Paunovic, M. Dukic, A. Ratković, I. Stojanovic","doi":"10.1109/MELCON.1989.50076","DOIUrl":"https://doi.org/10.1109/MELCON.1989.50076","url":null,"abstract":"A method for the prediction of interference and service zones for VHF/UHF tactical radio systems is proposed, developed, and illustrated by a few characteristic examples. It is noted that mathematical propagation models or more accurate computer-aided field prediction methods could be applied. A modification of a recently proposed statistical definition of the coverage area is applied to the service area determination, with the possibility of single or multiple interference analyses.<<ETX>>","PeriodicalId":380214,"journal":{"name":"Proceedings. Electrotechnical Conference Integrating Research, Industry and Education in Energy and Communication Engineering',","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1989-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121639856","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
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