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Proceedings IEEE Southeastcon '92最新文献

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Pattern matching in fewer comparisons 模式匹配在更少的比较
Proceedings IEEE Southeastcon '92 Pub Date : 1992-04-12 DOI: 10.1109/SECON.1992.202380
R.E. Eggen, C. Kurak
{"title":"Pattern matching in fewer comparisons","authors":"R.E. Eggen, C. Kurak","doi":"10.1109/SECON.1992.202380","DOIUrl":"https://doi.org/10.1109/SECON.1992.202380","url":null,"abstract":"The problem of finding the occurrences of a pattern in a body of text is discussed. Several algorithms exist to solve this problem. The authors provide an overview of the Boyer-Moore algorithm, including its performance characteristics. They explain the implementation of the Kurak algorithm and its performance characteristics and compare the two algorithms. The analysis shows the Kurak algorithm to be superior when counting comparisons and when timing the search. The Kurak algorithm requires preprocessing of the text and thus, for the initial search, more time is required than for the Boyer-Moore algorithm. However, after the text has been processed the Kurak algorithm always provides superior performance.<<ETX>>","PeriodicalId":230446,"journal":{"name":"Proceedings IEEE Southeastcon '92","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125191390","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
Electromagnetic characteristics of a thick monopole antenna with dielectric loading 介质负载下厚单极天线的电磁特性
Proceedings IEEE Southeastcon '92 Pub Date : 1992-04-12 DOI: 10.1109/SECON.1992.202359
W. Huang, A. Glisson, A. Kishk
{"title":"Electromagnetic characteristics of a thick monopole antenna with dielectric loading","authors":"W. Huang, A. Glisson, A. Kishk","doi":"10.1109/SECON.1992.202359","DOIUrl":"https://doi.org/10.1109/SECON.1992.202359","url":null,"abstract":"The effect of dielectric loading on the electromagnetic radiation characteristics of thick monopole antennas is investigated. A surface integral equation formulation for a dielectric-loaded thick monopole antenna modeled as a body of revolution is presented. The surface integral equations were solved via the method of moments for the unknown surface current distributions. The numerical data were verified by comparison of the results for input impedance with data available in the literature and with measured data for different configurations. The effects of loading on the input impedance, bandwidth, and beamwidth are considered for antennas mounted on both infinite and finite ground planes. Loads of various shapes and dielectric constants are investigated. Numerical results are presented for various conical and wire monopoles loaded with dielectrics which may partially or completely cover the conducting surface of the antenna.<<ETX>>","PeriodicalId":230446,"journal":{"name":"Proceedings IEEE Southeastcon '92","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121772142","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: 9
Engineering computer-based systems 工程计算机系统
Proceedings IEEE Southeastcon '92 Pub Date : 1992-04-12 DOI: 10.1109/SECON.1992.202436
G. F. Smith
{"title":"Engineering computer-based systems","authors":"G. F. Smith","doi":"10.1109/SECON.1992.202436","DOIUrl":"https://doi.org/10.1109/SECON.1992.202436","url":null,"abstract":"Some of the problems associated with the design of computer-based systems are discussed. Engineering of computer-based systems requires the designer to address two types of issues. First, there are the technical issues concerning the definition of the requirements, their partitioning, and the physical design of the system. In technical issues of system design, perhaps the most important issue to be addressed is the control of complexity. The second type of issue relates to the social environment within which the system has to operate, and within which it must be designed. Some practical guidelines are given to aid in overcoming the problems.<<ETX>>","PeriodicalId":230446,"journal":{"name":"Proceedings IEEE Southeastcon '92","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131563486","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: 6
Application of an inherently parallel heuristic methodology to flow-shop scheduling 内在并行启发式方法在流水车间调度中的应用
Proceedings IEEE Southeastcon '92 Pub Date : 1992-04-12 DOI: 10.1109/SECON.1992.202326
I. Paramanick
{"title":"Application of an inherently parallel heuristic methodology to flow-shop scheduling","authors":"I. Paramanick","doi":"10.1109/SECON.1992.202326","DOIUrl":"https://doi.org/10.1109/SECON.1992.202326","url":null,"abstract":"Presents an inherently parallel heuristic solution methodology called parallel dynamic interaction (PDI) and report its application to the flow-shop scheduling problem. Results indicate that, across the 40 examples studied, PDI solutions were on an average of within 2.5% of optimal. Additionally, the time taken for PDI to arrive at such high-quality solutions was negligible compared to that taken by conventional search techniques.<<ETX>>","PeriodicalId":230446,"journal":{"name":"Proceedings IEEE Southeastcon '92","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125490097","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
A high-speed 8*8-bit CMOS parallel array processor 高速8*8位CMOS并行阵列处理器
Proceedings IEEE Southeastcon '92 Pub Date : 1992-04-12 DOI: 10.1109/SECON.1992.202250
K.-K. Lee, R. G. Deshmukh
{"title":"A high-speed 8*8-bit CMOS parallel array processor","authors":"K.-K. Lee, R. G. Deshmukh","doi":"10.1109/SECON.1992.202250","DOIUrl":"https://doi.org/10.1109/SECON.1992.202250","url":null,"abstract":"The authors present an architecture for an 8-b*8-b real-time parallel array processor that can be used for high-speed digital signal processing applications. The processor generates 18-b outputs from a stream of 8-b input data and a set of 8-b predetermined coefficients. The processor has been designed in 1.5- mu m CMOS technology, analyzed for its timing, and functionally simulated by a hardware description language and a schematic simulator. The processor includes a pipelined array of multiplier-accumulators which provides parallel operation to the processor. The processor does not use parallel operation for an input rate lower than 28.5 Msamples/s, but the degree of parallelism was increased up to three for an input rate higher than 57.0 Msamples/s. This increase of the degree of parallelism resulted in a maximum throughput of 60.2 Msamples/s.<<ETX>>","PeriodicalId":230446,"journal":{"name":"Proceedings IEEE Southeastcon '92","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130610032","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
An efficient parallel structure for evaluating the triple matrix product algorithm 一种求解三矩阵积算法的高效并行结构
Proceedings IEEE Southeastcon '92 Pub Date : 1992-04-12 DOI: 10.1109/SECON.1992.202253
A. Barbir, J. Aravena
{"title":"An efficient parallel structure for evaluating the triple matrix product algorithm","authors":"A. Barbir, J. Aravena","doi":"10.1109/SECON.1992.202253","DOIUrl":"https://doi.org/10.1109/SECON.1992.202253","url":null,"abstract":"A parallel structure that can implement a matrix-matrix and a triple-matrix filtering algorithm efficiently is introduced. The architecture is a specialized form of a class of multiple single-instruction multiple-data machines (MSIMDs). It consists of systolic nodes of fixed dimension connected via a system network similar to the mesh interconnection network. The nodes have their own local memory and can access a common global memory. Communication among the nodes is performed by message passing. The structure is called the m/sup 2/-array (MSA). A technique is developed that analyzes the evolution of partial results in the MSA. The approach enables the designer to use the compute time as an added degree of freedom. This results in generating a family of low-complexity high-concurrence algorithms in the structure. This class of algorithms offer an attractive alternative for increasing the response time of the dedicated architecture.<<ETX>>","PeriodicalId":230446,"journal":{"name":"Proceedings IEEE Southeastcon '92","volume":"28 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120932053","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
Observability of HIP nonlinear dynamics HIP非线性动力学的可观测性
Proceedings IEEE Southeastcon '92 Pub Date : 1992-04-12 DOI: 10.1109/SECON.1992.202288
A. Newman, D. G. Meyer
{"title":"Observability of HIP nonlinear dynamics","authors":"A. Newman, D. G. Meyer","doi":"10.1109/SECON.1992.202288","DOIUrl":"https://doi.org/10.1109/SECON.1992.202288","url":null,"abstract":"The observability of the nonlinear system equations describing the hot isostatic pressing (HIP'ing) dynamic system is investigated. HIP'ing is a process for consolidating porous materials to high density. The feasibility of estimating a particular state (grain size) of the HIP nonlinear system dynamics from measurements of the system's output (density) and input (applied temperature and applied pressure) is examined. The problem is treated as an observability issue in which it is desired to determine whether knowledge of the input/output data for the HIP'ing process can uniquely determine the states of the system. If the system is observable, then grain size can be estimated during the HIP'ing process without directly measuring it as an output of the system. The results indicate that the system is observable.<<ETX>>","PeriodicalId":230446,"journal":{"name":"Proceedings IEEE Southeastcon '92","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120959072","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
H/sub infinity / vs. classical methods in the design of feedback control systems H/次无穷/与经典方法在反馈控制系统设计中的比较
Proceedings IEEE Southeastcon '92 Pub Date : 1992-04-12 DOI: 10.1109/SECON.1992.202307
A. Meghani, H. Latchman
{"title":"H/sub infinity / vs. classical methods in the design of feedback control systems","authors":"A. Meghani, H. Latchman","doi":"10.1109/SECON.1992.202307","DOIUrl":"https://doi.org/10.1109/SECON.1992.202307","url":null,"abstract":"A few reasons for the continued popularity enjoyed by H/sub infinity / theory in the control community are discussed. The mixed sensitivity H/sub infinity / robust control design problem based upon the Glover-Doyle 2-Riccati state-space approach (Doyle, Glover, Khargonekar and Francis, 1989) is considered. Particular emphasis is placed on the choice of suitable weighting functions, design parameters selected to reflect the relative importance of different design goals, upon which often hinges the successful computation of a satisfactory H/sub infinity / optimal controller. The Glover-Doyle algorithm was used to design a H/sub infinity / robust controller for a single-input-single-output system.<<ETX>>","PeriodicalId":230446,"journal":{"name":"Proceedings IEEE Southeastcon '92","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131182934","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
Measurement techniques to reveal arrester MOV response during steep-front impulsing 在陡坡前缘脉冲期间揭示避雷器MOV响应的测量技术
Proceedings IEEE Southeastcon '92 Pub Date : 1992-04-12 DOI: 10.1109/SECON.1992.202368
H. Fan, D.B. Miller
{"title":"Measurement techniques to reveal arrester MOV response during steep-front impulsing","authors":"H. Fan, D.B. Miller","doi":"10.1109/SECON.1992.202368","DOIUrl":"https://doi.org/10.1109/SECON.1992.202368","url":null,"abstract":"Steep-front, high current tests have been performed on 10 kV and 15 kV MOV (metal oxide varistor) and gapped SiC (silicon carbide) distribution arresters. Arrester voltage responses to steep-front, nearly rectangular current pulses exhibited a large voltage overshoot or initial spike. A considerable part of this overshoot voltage was the induced voltage in the voltage divider due to time-changing magnetic field generated by the rapidly rising arrester current. The overshoot voltage was estimated by replacing the test arrester with a similarly sized aluminum tube. Noises have been filtered out of the voltage and current waveforms by software filtering to determine the maximum rate of rise of the arrester current. The arrester peak voltages and the peak responses of the arrester materials are related linearly to the maximum rate of rise of the arrester currents.<<ETX>>","PeriodicalId":230446,"journal":{"name":"Proceedings IEEE Southeastcon '92","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130936859","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
Backpropagation algorithm for a generalized neural network structure 广义神经网络结构的反向传播算法
Proceedings IEEE Southeastcon '92 Pub Date : 1992-04-12 DOI: 10.1109/SECON.1992.202276
K. Krishnakumar
{"title":"Backpropagation algorithm for a generalized neural network structure","authors":"K. Krishnakumar","doi":"10.1109/SECON.1992.202276","DOIUrl":"https://doi.org/10.1109/SECON.1992.202276","url":null,"abstract":"The author presents a generalized neural network structure and the associated backpropagation learning algorithm. This structure is an extension of a neural net structure presented by P.J. Werbos (1988, 1990). Generalization is aimed at ease of implementation and flexibility in structure selection. It is shown how certain network structures can be accommodated using this general structural form. Networks that are investigated include feedforward, recurrent, and memory networks.<<ETX>>","PeriodicalId":230446,"journal":{"name":"Proceedings IEEE Southeastcon '92","volume":"151 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134278929","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
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