Proceedings IEEE Southeastcon '95. Visualize the Future最新文献_第4页

Analysis of jitter in supporting multimedia service requirements over ATM ATM上支持多媒体业务需求的抖动分析

Proceedings IEEE Southeastcon '95. Visualize the Future Pub Date : 1995-03-26 DOI: 10.1109/SECON.1995.513049

S. Wright, D. Jarrett

引用次数: 1

Electrical breakdown strength of XLPE cables under combined AC-DC voltage 交交复合电压下交联聚乙烯电缆的击穿强度

Proceedings IEEE Southeastcon '95. Visualize the Future Pub Date : 1995-03-26 DOI: 10.1109/SECON.1995.513058

S. Grzybowski, R.L. McMellon

引用次数: 15

A DSP based laboratory system for exploring digital communication concepts 一个基于DSP的实验系统，用于探索数字通信概念

Proceedings IEEE Southeastcon '95. Visualize the Future Pub Date : 1995-03-26 DOI: 10.1109/SECON.1995.513102

B. Overstreet, J. Austen

{"title":"A DSP based laboratory system for exploring digital communication concepts","authors":"B. Overstreet, J. Austen","doi":"10.1109/SECON.1995.513102","DOIUrl":"https://doi.org/10.1109/SECON.1995.513102","url":null,"abstract":"One problem with digital communication laboratories is the lack of flexibility. Current laboratories either use specialized equipment with little or no ability to change system parameters or extremely general equipment with limited modulation types and pulse shaping options. One solution to this problem is to use digital signal processing (DSP) techniques. DSP systems are extremely flexible and provide the ability to implement a wide range of modulation types and pulse shapes. By using complex baseband signal processing techniques and two channels of output, both one- and two-dimensional constellations can be generated. Combining the signal processing capabilities of a DSP system with a simple user interface implemented on a desktop computer provides an attractive, simple and flexible laboratory tool. This system allows the student to generate various modulation types and view the corresponding signal constellations and eye patterns on an oscilloscope. Modulated signals can be generated by connecting the system outputs to a quadrature modulator. The user interface allows the student to change the modulation type or the pulse shape with a single keystroke. This functionality provides a friendly user interface which encourages more experimentation and increases the value of the laboratory experience. This paper presents the system design and user interface. Problems encountered during the design and equipment selection criteria are discussed. Preliminary implementation results are presented.","PeriodicalId":334874,"journal":{"name":"Proceedings IEEE Southeastcon '95. Visualize the Future","volume":"84 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128244632","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

Resonant tunneling with superlattice emitters 超晶格发射体的共振隧道效应

Proceedings IEEE Southeastcon '95. Visualize the Future Pub Date : 1995-03-26 DOI: 10.1109/SECON.1995.513099

K. Banoo, T. Daniels‐Race

引用次数: 0

Arcing generated electromagnetic fields associated with a high-voltage power system of the space station 电弧产生的电磁场与空间站的高压电力系统有关

Proceedings IEEE Southeastcon '95. Visualize the Future Pub Date : 1995-03-26 DOI: 10.1109/SECON.1995.513113

N. Singh

{"title":"Arcing generated electromagnetic fields associated with a high-voltage power system of the space station","authors":"N. Singh","doi":"10.1109/SECON.1995.513113","DOIUrl":"https://doi.org/10.1109/SECON.1995.513113","url":null,"abstract":"A large spacecraft such as the planned space station requires a relatively large amount of electrical power for its routine operation. For example, the power required by the space station is expected to be about 300 kW. This high power requirement entails a power system operating at a high voltage. The space station will operate at about 160 V. Such a large voltage in conjunction with the grounding scheme of the solar cell arrays, would make the potential of the space station structure highly negative with respect to the ionospheric plasma. Since the structure of the station is insulated by a 3-/spl mu/m thick coating of Al/sub 2/O/sub 3/ and the plasma shields the potential, the large negative potential drops across the thin insulating layer, creating an intense electric field (/spl sim/5/spl times/10/sup 7/ V/m) in it. This raises the possibility of dielectric breakdown and arcing from the space station structure to the ionospheric plasma. Laboratory simulations of the arcing have shown large arc currents (/spl sim/1500 A) with a rise time of about 0.1 ms and a total duration of about /spl sim/1 ms. Such a large arc current can affect the operation of the power system and generates electromagnetic waves, which cause concerns about electromagnetic interference. In this paper we report the results from a study on the electromagnetic fields generated by the arc. This problem is modeled as the radiation from a monopole antenna having a transient current in a magnetized plasma.","PeriodicalId":334874,"journal":{"name":"Proceedings IEEE Southeastcon '95. Visualize the Future","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131954641","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

Simulations for the dynamic response of single-transit SiC IMPATTs 单输运SiC冲击元件的动态响应仿真

Proceedings IEEE Southeastcon '95. Visualize the Future Pub Date : 1995-03-26 DOI: 10.1109/SECON.1995.513066

R. Joshi, S. Pathak

引用次数: 0

An improved L/sub 2/-sensitivity for state-space digital systems 一种改进的状态空间数字系统的L/sub /-灵敏度

Proceedings IEEE Southeastcon '95. Visualize the Future Pub Date : 1995-03-26 DOI: 10.1109/SECON.1995.513068

Chengshan Xiao

引用次数: 0

Ride-through issues for DC motor drives during voltage sags 直流电机驱动在电压下降时的穿越问题

Proceedings IEEE Southeastcon '95. Visualize the Future Pub Date : 1995-03-26 DOI: 10.1109/SECON.1995.513056

N.S. Tunaboylu, E. R. Collins, S. Middlekauff, R. Morgan

引用次数: 33

Parallel task scheduling for the block data flow architecture 并行任务调度的块数据流架构

Proceedings IEEE Southeastcon '95. Visualize the Future Pub Date : 1995-03-26 DOI: 10.1109/SECON.1995.513107

G. R. Cato, D. Reeves

引用次数: 2

Improved dual leaky bucket policing algorithm for ATM networks 改进的ATM网络双漏桶监管算法

Proceedings IEEE Southeastcon '95. Visualize the Future Pub Date : 1995-03-26 DOI: 10.1109/SECON.1995.513048

V. Mannem, Ravi Sankar

{"title":"Improved dual leaky bucket policing algorithm for ATM networks","authors":"V. Mannem, Ravi Sankar","doi":"10.1109/SECON.1995.513048","DOIUrl":"https://doi.org/10.1109/SECON.1995.513048","url":null,"abstract":"In high speed communication, traffic management plays a significant role to control the use of network resources to prevent bottlenecks. In particular, when the network resources are allotted to more sources than the network can support, the network performance degrades for users. So, the network resources should be allotted in such a way that the network can operate at acceptable levels (maintain the QoS for all the existing connections) at times when the offered load to the network exceeds its capacity. So, a policing function is set up at the user network interface (UNI) for preventive congestion control. Many algorithms have previously been proposed for the UNI. Only a few algorithms are concerned with the cell delay variation (CDV). In the present paper, an improved version of the leaky bucket algorithm is presented to monitor traffic. This algorithm also checks those cells which are crossing the policing rate due to the effect of CDV and compensates them by sending them into the network without discarding. Simulation results are presented to demonstrate the superior performance of this traffic control algorithm. The algorithm also makes use of the feedback control of the network status which in turn improves the throughput.","PeriodicalId":334874,"journal":{"name":"Proceedings IEEE Southeastcon '95. Visualize the Future","volume":"214 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128168227","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