Southcon/96 Conference Record最新文献

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DSP technology for a hands-free cellular phone in a car DSP技术实现车载免提手机
Southcon/96 Conference Record Pub Date : 1996-06-25 DOI: 10.1109/SOUTHC.1996.535038
S. Oh
{"title":"DSP technology for a hands-free cellular phone in a car","authors":"S. Oh","doi":"10.1109/SOUTHC.1996.535038","DOIUrl":"https://doi.org/10.1109/SOUTHC.1996.535038","url":null,"abstract":"We present the development results of an acoustic echo canceller (AEC) and adaptive noise suppresser used for hands-free car phones using the Texas Instruments' TMS320C5x fixed point DSP processor. A hands-free cellular phone using DSP technology provides full-duplex communication with speech enhancement in a noisy car environment. Thus, our AEC system was designed for an adverse car environment. The implementation and design trade-off of an acoustic echo canceller on a 16-bit fixed point DSP microprocessor caused by the automotive environment, are discussed.","PeriodicalId":199600,"journal":{"name":"Southcon/96 Conference Record","volume":"54 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":"121858069","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
Development of an undergraduate electrical machines laboratory 本科电机实验室的建设
Southcon/96 Conference Record Pub Date : 1996-06-25 DOI: 10.1109/SOUTHC.1996.535076
H. Aintablian, J. Spurlin
{"title":"Development of an undergraduate electrical machines laboratory","authors":"H. Aintablian, J. Spurlin","doi":"10.1109/SOUTHC.1996.535076","DOIUrl":"https://doi.org/10.1109/SOUTHC.1996.535076","url":null,"abstract":"An electric machinery course and its associated laboratory has been introduced to the Electronics and Computer Technology program at North Carolina A&T State University, USA. The program prepares highly trained technologists for the computer, communications and manufacturing fields. The electric machines course is required of all undergraduate students in the program and consists of two contact hours of lecture and two contact hours of laboratory work per week. The electric machinery laboratory consists of seven industrial motor trainers that have been proven to be functional and instructive. The trainers use small machines that offer ease and flexibility in wiring the associated diagrams. After outlining the features of the industrial motor trainer, different types of experiments are described. Finally, student response to the experiments are reported.","PeriodicalId":199600,"journal":{"name":"Southcon/96 Conference Record","volume":"160 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":"129854418","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
Scalable bipolar transistor model including quasi-saturation effect for BiCMOS application BiCMOS中包含准饱和效应的可扩展双极晶体管模型
Southcon/96 Conference Record Pub Date : 1996-06-25 DOI: 10.1109/SOUTHC.1996.535102
Yong Dai, J. Yuan, Jiling Song, P. Campbell
{"title":"Scalable bipolar transistor model including quasi-saturation effect for BiCMOS application","authors":"Yong Dai, J. Yuan, Jiling Song, P. Campbell","doi":"10.1109/SOUTHC.1996.535102","DOIUrl":"https://doi.org/10.1109/SOUTHC.1996.535102","url":null,"abstract":"A Gummel-Poon like bipolar transistor model including effects of quasi-saturation is derived. The model includes multi-dimensional effects such as sidewall injection, emitter current crowding, and collector current spreading. A current-dependent epi-layer collector resistance is proposed to model collector conductivity modulation in quasi-saturation. The model has been compared with measurement. Good agreement between the model predictions and experimental data has been obtained.","PeriodicalId":199600,"journal":{"name":"Southcon/96 Conference Record","volume":"106 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":"115811687","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 unit cell design for construction of quasi-optical power combining oscillator arrays 准光功率组合振荡器阵列的单元设计
Southcon/96 Conference Record Pub Date : 1996-06-25 DOI: 10.1109/SOUTHC.1996.535103
M. Rahman, T. Ivanov, A. Mortazawi
{"title":"A unit cell design for construction of quasi-optical power combining oscillator arrays","authors":"M. Rahman, T. Ivanov, A. Mortazawi","doi":"10.1109/SOUTHC.1996.535103","DOIUrl":"https://doi.org/10.1109/SOUTHC.1996.535103","url":null,"abstract":"At millimeter and sub-millimeter-wave frequencies individual solid-state devices have a limited ability to produce enough power for system applications. Therefore, it is desirable to combine the power generated from many individual devices. Here, the design and fabrication of a unit cell for construction of large quasi-optical power combining oscillator arrays will be presented. The oscillator unit cell was designed at 10 GHz and fabricated on a Duroid substrate. The power generated is radiated into free space via a circular slot antenna. The measurement results obtained at 10.02 GHz are presented in this paper.","PeriodicalId":199600,"journal":{"name":"Southcon/96 Conference Record","volume":"58 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":"115855231","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
The harmonic currents of commercial office buildings due to non-linear electronic equipment 非线性电子设备对商业办公楼谐波电流的影响
Southcon/96 Conference Record Pub Date : 1996-06-25 DOI: 10.1109/SOUTHC.1996.535133
H. Aintablian
{"title":"The harmonic currents of commercial office buildings due to non-linear electronic equipment","authors":"H. Aintablian","doi":"10.1109/SOUTHC.1996.535133","DOIUrl":"https://doi.org/10.1109/SOUTHC.1996.535133","url":null,"abstract":"In recent years there has been a growing concern for power system distortion. This is due in part to a proliferation of nonlinear electronic equipment such as personal computers, printers, fax machines, and medical test equipment. The power supplies used in this equipment are predominantly of the switching-mode variety which generate harmonic currents presenting serious problems to electric utilities. Of particular importance is the effect of harmonic distortion on three-phase, four-wire distribution systems which exist in most commercial and industrial buildings. This type of distribution system is susceptible to excessive neutral current and transformer heating which can lead to the eventual failure of the neutral conductor or the transformer. In this paper, the problems of high neutral currents and additional transformer losses due to harmonic currents are addressed. Harmonic current measurement results at an educational office building are presented. Finally, recommendations are made for overcoming the problems of harmonic current distortion.","PeriodicalId":199600,"journal":{"name":"Southcon/96 Conference Record","volume":"119 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":"115037360","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: 15
An electric vehicle for recreational areas and local traffic 用于娱乐场所和当地交通的电动汽车
Southcon/96 Conference Record Pub Date : 1996-06-25 DOI: 10.1109/SOUTHC.1996.535079
F. Pavuza, G. Beszedics, W. Toriser, M. Wawra, W. Winkler
{"title":"An electric vehicle for recreational areas and local traffic","authors":"F. Pavuza, G. Beszedics, W. Toriser, M. Wawra, W. Winkler","doi":"10.1109/SOUTHC.1996.535079","DOIUrl":"https://doi.org/10.1109/SOUTHC.1996.535079","url":null,"abstract":"The paper presents a lightweight vehicle, based on a frame made of metal tubes. Two novel electric disc motors are mounted directly into the front wheels and are controlled by an efficient electronic circuit that also provides an energy saving brake mode by charging the batteries with current gained through the braking process. The vehicle can transport an average family of 4 persons with a speed of 12 mph over a distance of 35-40 miles before recharging. Solar panels complement the battery power supply and provide up to 30% of the total energy for the regular drive mode. Considering the total costs of operation-a few cents per mile, when calculating with a life time of 500 charging cycles for the batteries and the additional use of solar panels-this vehicle can successfully replace a considerable part of the conventional car fleets of recreational or rehabilitation areas, and as a device for individual transport for shopping, business or leisure activities. The only limitations are set by the climate and by the topography of the operational area. Improvements in battery technology will further increase the chances on the market for this type of vehicle.","PeriodicalId":199600,"journal":{"name":"Southcon/96 Conference Record","volume":"639 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":"123077831","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
Wireless WANs and products 无线广域网及其产品
Southcon/96 Conference Record Pub Date : 1996-06-25 DOI: 10.1109/SOUTHC.1996.535040
S. Brumer
{"title":"Wireless WANs and products","authors":"S. Brumer","doi":"10.1109/SOUTHC.1996.535040","DOIUrl":"https://doi.org/10.1109/SOUTHC.1996.535040","url":null,"abstract":"A growing number of corporations and institutions are beginning to recognize that wireless data communications can be a viable advantage in an increasing competitive marketplace. When an organization begins the process of exploring the possibilities of what wireless data can do for them, it is extremely important to listen to their real needs or goals desired. The \"return on investment\" differs for each company or organization. Wireless data is the means to attain a goal when designed, tested and implemented correctly. The total investment can be justified with a defined plan. The author discusses the selection of an application which is to be integrated with wireless data, the choice of carrier, middleware, hardware selection, the pilot phase and implementation phase in implementing the application, successful applications and the possibility of using wireless LANs.","PeriodicalId":199600,"journal":{"name":"Southcon/96 Conference Record","volume":"35 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":"116328293","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
Establishing firewall policy 建立防火墙策略
Southcon/96 Conference Record Pub Date : 1996-06-25 DOI: 10.1109/SOUTHC.1996.535065
S. Cobb
{"title":"Establishing firewall policy","authors":"S. Cobb","doi":"10.1109/SOUTHC.1996.535065","DOIUrl":"https://doi.org/10.1109/SOUTHC.1996.535065","url":null,"abstract":"One in five respondents to an Information Week/Ernst and Young Security Survey admitted that intruders had broken into, or had tried to break into, their corporate networks, via the Internet, during the preceding twelve months. Unfortunately, there is a growing impression that all of the security problems associated with internetworking can be fixed by deploying a firewall. True, many of the commercially-available firewall products are very powerful and firewalls deserve to be near the top of the agenda for organizations who have, or are thinking about creating, a connection between their network and another network. However, firewalls, at least in the narrow sense of the term, are not the whole answer. Broadly speaking a firewall is a system or group of systems that enforces an access control policy between two networks. More specifically, a firewall is a collection of components or a system that is placed between two networks and possesses the following properties: all traffic from inside to outside, and vice-versa, must pass through it; only authorized traffic, as defined by the local security policy, is allowed to pass through it; and the system itself is immune to penetration. In other words, a firewall is a mechanism used to protect a trusted network from an untrusted network.","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":"125887416","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
Asynchronous transfer modes strategic power over the Internet 异步传输模式的战略力量在互联网上
Southcon/96 Conference Record Pub Date : 1996-06-25 DOI: 10.1109/SOUTHC.1996.535058
K. Bolton
{"title":"Asynchronous transfer modes strategic power over the Internet","authors":"K. Bolton","doi":"10.1109/SOUTHC.1996.535058","DOIUrl":"https://doi.org/10.1109/SOUTHC.1996.535058","url":null,"abstract":"The promise of asynchronous transfer mode, (ATM) has captured the imagination of the networking industry. Only ATM promises responsive, high-quality voice, video and data services over a shared network. This paper identifies one of the many emerging market opportunities for which ATM is suited. This highly visible market is the information superhighway, described by many as the Internet. Only ATM promises to enable exciting new applications in the area of on-line databases, while also reducing bandwidth unit cost. This paper concentrates on the justification of why ATM offers a way to clear up the Internet's current bandwidth bottleneck within the local loop and to some degree globally, while providing a rich platform for tomorrow's services.","PeriodicalId":199600,"journal":{"name":"Southcon/96 Conference Record","volume":"33 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":"115025564","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
Infrastructure. The key to total communications 基础设施。全面沟通的关键
Southcon/96 Conference Record Pub Date : 1996-06-25 DOI: 10.1109/SOUTHC.1996.535034
C. Melear
{"title":"Infrastructure. The key to total communications","authors":"C. Melear","doi":"10.1109/SOUTHC.1996.535034","DOIUrl":"https://doi.org/10.1109/SOUTHC.1996.535034","url":null,"abstract":"Discusses the role of the DSP processor within the total communications infrastructure. The transfer of data is considered and the author goes on to discuss the components of a communications system with the user interface. The MPC860 microcontroller is mentioned together with its communications processor component.","PeriodicalId":199600,"journal":{"name":"Southcon/96 Conference Record","volume":"31 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":"124310314","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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