发布求助
文献互助 智能选刊 最新文献

Southcon/96 Conference Record最新文献

筛选
英文 中文
Application of approximate trigonometric expansions to multiresolution signal representation 近似三角展开在多分辨率信号表示中的应用
Southcon/96 Conference Record Pub Date : 1996-06-25 DOI: 10.1109/SOUTHC.1996.535085
Q. Memon, T. Kasparis
{"title":"Application of approximate trigonometric expansions to multiresolution signal representation","authors":"Q. Memon, T. Kasparis","doi":"10.1109/SOUTHC.1996.535085","DOIUrl":"https://doi.org/10.1109/SOUTHC.1996.535085","url":null,"abstract":"Signal representation and data coding for multidimensional signals have received considerable attention due to their importance to several modern technologies. Many useful contributions have been reported that employ wavelets and transform methods. Transform techniques have been generally applied for waveform coding, where constrained representation has been widely used. There is tradeoff between transform efficiency and ease of its implementation and the application depends upon the criterion applicable in any particular case. There exists an approximate Fourier expansion (AFE) with theoretically uncorrelated coefficients. Approximate trigonometric expansions have the capability of fast implementation as well as relatively better decorrelation efficiency than the discrete cosine transform. Some properties of these expansions along with their application to images has already been explored. We apply approximate trigonometric expansions to 1-D signals. Signal decomposition of the signal has been widely used with the discrete cosine transform for signal compression. Here, 1-D signals are decomposed using approximate Fourier expansion (AFE) and later these decomposed signals are represented using an approximate cosine expansion (ACE) for purposes of coding. Computer simulation results are presented.","PeriodicalId":199600,"journal":{"name":"Southcon/96 Conference Record","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127380523","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
Brushless DC motor positioning system 无刷直流电机定位系统
Southcon/96 Conference Record Pub Date : 1996-06-25 DOI: 10.1109/SOUTHC.1996.535111
C. Melear
{"title":"Brushless DC motor positioning system","authors":"C. Melear","doi":"10.1109/SOUTHC.1996.535111","DOIUrl":"https://doi.org/10.1109/SOUTHC.1996.535111","url":null,"abstract":"The purpose of this paper is to describe a brushless DC motor control circuit based on the MC68332 microcontroller and its unique time processing unit or TPU. This timer has preprogrammed algorithms that are developed specifically for the brushless DC motor. The function of monitoring the shaft position and generating the necessary waveforms to drive the motor are automatically created by the time processor unit. The main central processor on the MC68332 can devote itself to calculating the control algorithm used to drive the motor instead of being concerned with reading data from external elements to find out the shaft position and then creating the appropriate response.","PeriodicalId":199600,"journal":{"name":"Southcon/96 Conference Record","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133464847","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
Efficient electric vehicle lighting using LEDs 使用led的高效电动汽车照明
Southcon/96 Conference Record Pub Date : 1996-06-25 DOI: 10.1109/SOUTHC.1996.535078
W. Young, W. Wilson
{"title":"Efficient electric vehicle lighting using LEDs","authors":"W. Young, W. Wilson","doi":"10.1109/SOUTHC.1996.535078","DOIUrl":"https://doi.org/10.1109/SOUTHC.1996.535078","url":null,"abstract":"Electric vehicles are very energy conscience. Replacing the inefficient incandescent lights with more efficient lights, such as light emitting diodes (LED), would conserve energy and help increase the vehicle's range. Because LEDs produce light at the needed wavelength for automotive use, less energy is consumed by the lighting fixture when compared to the white light generated by incandescent bulbs. One development is super-bright LEDs that produce light at greater efficiency. This paper discusses the performance of new super-bright LEDs, their use and design consideration for automotive lighting applications.","PeriodicalId":199600,"journal":{"name":"Southcon/96 Conference Record","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121568321","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
Compact MOSFET modeling for mixed-signal design 用于混合信号设计的紧凑MOSFET建模
Southcon/96 Conference Record Pub Date : 1996-06-25 DOI: 10.1109/SOUTHC.1996.535096
C. Yeh, J. Luo, L. Lewicki, K.W. Hwang, C. Huang, H. Chen, C. Kao, R. Mendel
{"title":"Compact MOSFET modeling for mixed-signal design","authors":"C. Yeh, J. Luo, L. Lewicki, K.W. Hwang, C. Huang, H. Chen, C. Kao, R. Mendel","doi":"10.1109/SOUTHC.1996.535096","DOIUrl":"https://doi.org/10.1109/SOUTHC.1996.535096","url":null,"abstract":"In this paper, the requirements of a good compact MOSFET model for mixed-signal design are discussed. The model accuracy criteria based on the circuit designer's perspective are given. The issues of statistical modeling, model implementation in a circuit simulator and mixed-signal process characterization are also addressed.","PeriodicalId":199600,"journal":{"name":"Southcon/96 Conference Record","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115319979","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
Rapid prototyping for communications design validation 快速原型通信设计验证
Southcon/96 Conference Record Pub Date : 1996-06-25 DOI: 10.1109/SOUTHC.1996.535042
M. Courtoy
{"title":"Rapid prototyping for communications design validation","authors":"M. Courtoy","doi":"10.1109/SOUTHC.1996.535042","DOIUrl":"https://doi.org/10.1109/SOUTHC.1996.535042","url":null,"abstract":"System emulation technology enables users to rapidly prototype HDL-based designs on programmable hardware before committing their designs to production. In this paper, we show that this methodology is particularly viable for at-speed verification of communications designs. We show how complimentary tools can be used to generate HDL code for a digital wireless communications system. Then we consider how this design can be implemented and evaluated using a rapid prototyping methodology. Synthesis produces a gate-level specification for implementation in FPGAs which are combined with other components in the Aptix rapid prototyping environment. Issues discussed include: software tool flows, prototype hardware assembly, system performance, and debugging.","PeriodicalId":199600,"journal":{"name":"Southcon/96 Conference Record","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125589385","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
Teaching electrical safety in engineering (or how to avoid electrocution) 教授工程电气安全(或如何避免触电)
Southcon/96 Conference Record Pub Date : 1996-06-25 DOI: 10.1109/SOUTHC.1996.535069
J. R. Story
{"title":"Teaching electrical safety in engineering (or how to avoid electrocution)","authors":"J. R. Story","doi":"10.1109/SOUTHC.1996.535069","DOIUrl":"https://doi.org/10.1109/SOUTHC.1996.535069","url":null,"abstract":"Perhaps the most dangerous, life threatening situations are those that are invisible, and emit no warning signs; yet we live and work around these every day. In many engineering programs, this subject is assumed to be \"covered somewhere\", or at least understood based on covered theory. Unfortunately, this is not the case. Through surveying many engineering seniors and graduate students on topics in electrical safety, it was found that most have little to no knowledge of a relatively simple, but extremely important topic, i.e., electrical safety. This is especially true in disciplines other than electrical engineering, e.g., mechanical, civil, industrial, etc. There is a basic set of life saving questions that everyone (even nonengineers) should be able to answer, both theoretically and practically. The purpose of this paper is to answer some key questions, present some theory, and introduce some practical interactive demos that teachers can use in their class to drive home this most important aspect of electrical safety.","PeriodicalId":199600,"journal":{"name":"Southcon/96 Conference Record","volume":"118 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116108525","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
Electromagnetic fields: can't live without them, can't live with them 电磁场:不能没有它们，也不能有它们
Southcon/96 Conference Record Pub Date : 1996-06-25 DOI: 10.1109/SOUTHC.1996.535070
R. Desai, D.T. Shah
{"title":"Electromagnetic fields: can't live without them, can't live with them","authors":"R. Desai, D.T. Shah","doi":"10.1109/SOUTHC.1996.535070","DOIUrl":"https://doi.org/10.1109/SOUTHC.1996.535070","url":null,"abstract":"The main objective of this paper is to show that we are surrounded by the electromagnetic fields (EMF) at home, work, and play. It also discusses some major epidemiological and laboratory studies showing the dangerous effects of EMF. Some safety measures that can be implemented to minimize these exposures are discussed.","PeriodicalId":199600,"journal":{"name":"Southcon/96 Conference Record","volume":"114 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126972922","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
Fabrication of 1.3 /spl mu/m InGaAsP/InP gain-coupled DFB lasers with absorptive grating using LPE technique 利用LPE技术制备1.3 /spl μ m InGaAsP/InP增益耦合吸收光栅DFB激光器
Southcon/96 Conference Record Pub Date : 1996-06-25 DOI: 10.1109/SOUTHC.1996.535095
Yi Luo, Wen Wang, Tong-ning Li, Bin He, Xiaohang Du
{"title":"Fabrication of 1.3 /spl mu/m InGaAsP/InP gain-coupled DFB lasers with absorptive grating using LPE technique","authors":"Yi Luo, Wen Wang, Tong-ning Li, Bin He, Xiaohang Du","doi":"10.1109/SOUTHC.1996.535095","DOIUrl":"https://doi.org/10.1109/SOUTHC.1996.535095","url":null,"abstract":"Research on a 1.3 /spl mu/m InGaAsP/InP gain-coupled DFB laser with loss gratings, which is made using LPE, is reported for the first time, and some initial results on the device characteristics are also presented.","PeriodicalId":199600,"journal":{"name":"Southcon/96 Conference Record","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125934996","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 simulation and genetic algorithm approach to stochastic research constrained project scheduling 基于仿真和遗传算法的随机约束项目调度研究
Southcon/96 Conference Record Pub Date : 1996-06-25 DOI: 10.1109/SOUTHC.1996.535089
J. Pet-Edwards, M. Mollaghesemi
{"title":"A simulation and genetic algorithm approach to stochastic research constrained project scheduling","authors":"J. Pet-Edwards, M. Mollaghesemi","doi":"10.1109/SOUTHC.1996.535089","DOIUrl":"https://doi.org/10.1109/SOUTHC.1996.535089","url":null,"abstract":"Resource constrained project scheduling problems are very difficult to solve to optimality. Because of the computational complexity, scheduling heuristics have been found useful for large deterministic problems. However, these scheduling heuristics have not been applied to problems with stochastic task durations. Heuristics are often combined to try to achieve better performance. When this is done, a search over all possible combinations is generally required. This is again a very computationally intensive task, especially for stochastic problems. We demonstrate how a genetic algorithm can be used to determine the best linear combination of scheduling heuristics. A simulation model is used to evaluate the performance of each combination of the heuristics selected by the genetic algorithm, and this performance information is used by the genetic algorithm to select the next combinations to evaluate. The genetic algorithm and simulation based approach is demonstrated using a multiple resource constrained project scheduling problem with stochastic task durations.","PeriodicalId":199600,"journal":{"name":"Southcon/96 Conference Record","volume":"16 5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125626956","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: 13
Subsampling digital IF receiver implementations 子采样数字中频接收机实现
Southcon/96 Conference Record Pub Date : 1996-06-25 DOI: 10.1109/SOUTHC.1996.535049
J. Fakatselis, D. Chester
{"title":"Subsampling digital IF receiver implementations","authors":"J. Fakatselis, D. Chester","doi":"10.1109/SOUTHC.1996.535049","DOIUrl":"https://doi.org/10.1109/SOUTHC.1996.535049","url":null,"abstract":"This paper introduces the concept of direct digital down-conversion via subsampling and digital quadrature tuning. In theory, a bandpass filtered intermediate frequency (IF) signal can be sampled by an analog-to-digital converter (ADC) with a sampling rate consistent with the pass band width and center frequency of the signal of interest. During the sampling process, the bandpass signal is constructively aliased to baseband. The practical limits of such an implementation are that the bandwidth and timing accuracy of the ADC's track and hold circuitry must be consistent with the IF location of the signal of interest. The subsampling ADC can be immediately followed by a quadrature digital tuner to provide fine tuning and produce a baseband quadrature signal ready for baseband processing. The combination of the subsampling ADC and digital quadrature tuner forms a complete digital IF processing chain.","PeriodicalId":199600,"journal":{"name":"Southcon/96 Conference Record","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131279087","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
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：481959085
Book学术官方微信