检索结果-内蒙古大学图书馆

European design Automation Conference

作者： U. Glaser H.T. Vierhaus The German National Research Center for Computer Science GMD System Design Technology Institute Saint Augustine USA

Automatic test pattern generation yielding high fault coverage for CMOS circuits has received a wide attention in industry and academia for a long time. Scan techniques were used to break down the sequential ATPG problem to combinational test generation. As the overhead necessary for scan design can not be spent for all circuits, sequential test generation techniques gained importance. In this paper the FOGBUSTER (FOrward propaGation Backward jUstification Sequential Test genERation) algorithm is described and experimental results for the ISCAS '89 benchmark circuits are shown. FOGBUSTER is a complete algorithm which makes use of a forward propagation technique which is more efficient in general than the backward propagation technique used in the well known BACK-algorithm.

关键词： Sequential analysis Circuit testing Circuit faults Automatic test pattern generation Sequential circuits Clocks Benchmark testing Logic testing Master-slave Automata

来源：评论

学校读者我要写书评

暂无评论

A DISTRIBUTED MEDIA ACCESS PROTOCOL FOR PACKET RADIO NETWORKS AND PERFORMANCE ANALYSIS .2. NETWORK SET-UP TIME AND DATA RATE

引用

INTERNATIONAL JOURNAL OF COMMUNICATION systemS 1995年第1期8卷 49-63页

作者： POND, LC LI, VOK Communication Sciences Electrical Engineering Systems University of Southern California Los Angeles CA 90089-2565 U.S.A. Lawrence C. Pond received the M.Sc. and Ph.D. degrees in electrical engineering from the University of Southern California in 1983 and 1990 respectively. Dr. Pond is currently a scientist at Hughes Space and Communications Company having joined in 1980. He has worked in the fields of communication system design mobile communication network and spacecraft payload design. He is currently working on the development of satellite-based ATM transport and switching architectures for BISDN and Defense Information System Network amlications. Dr. Pond is a member of IEEE. Victor O. K. Li was born in Hong Kong in 1954. He received his SB SM and Sc.D. degrees in Electrical Engineering and Computer Science from the Massachusetts Institute of Technology Cambridge Massachusetts in 1977 1979 and 1981 respectively. Since February 1981 he has been with the University of Southern California (USC) LOS Angeles California where he is Professor of Electrical Engineering and Director of the USC Communication Sciences Institute. He has published 150 technical papers and has lectured and consulted extensively around the world. His research interests include high-speed communication networks personal communication networks intelligent networks distributed databases queueing theory graph theory and applied probability. Dr. Li is very active in the Institute of Electrical and Electronic Engineers (IEEE) having been a member of the Computer Communications Technical Committee since 1983 and having served as Chairman from 1987–1989. He served as Chairman of the Los Angeles Chapter of the IEEE Information Theory Group from 1983–1985. He is the Steering Committee Chair of the International Conference on Computer Communications and Networks (IC3 N) General Chair of the 1st Annual IC3N held in San Diego California in June 1992 General Chair and Technical Program Chair of the 4th IEEE Workshop on Comp

In this, the second part of a two-part paper, the required time for establishing a mobile packet radio network using the virtual circuit and time division multiple access protocol developed in Part 1 is analysed. Tools are developed to determine the virtual circuit and network set-up times in terms of the channel bandwidth allocated to establish and maintain the network. The tools are then extended to include the effects of user mobility. Then these results are combined with the network capacity results of Part 1 to analyse the trade-off between the data rate and set-up time of the network. Next a hierarchical architecture is proposed and the network data rate versus set-up time trade-off of this architecture is analysed using these tools. This architecture is shown to both provide a higher data rate and establish faster than flat networks of the same number of nodes.

关键词： PACKET RADIO NETWORK EPLRS DISTRIBUTED NETWORK TDMA VIRTUAL CIRCUITS MULTIHOP NETWORK BOUNDED DELAY MOBILITY NETWORK SET-UP TIME HIERARCHICAL NETWORK NETWORK DATA RATE

来源：评论

学校读者我要写书评

暂无评论

ISDN LOOP EXTENSION USING A MID-SPAN AMPLIFIER

引用

INTERNATIONAL JOURNAL OF COMMUNICATION systemS 1995年第3期8卷 219-224页

作者： ERKER, GJ DODDS, DE KRZYMIEN, WA David E. Dodds was born in Saskatoon Canada in 1945. He received the B. Eng. and MSc. degrees from the University of Saskatchewan in 1966 and 1968 respectively. He worked with Bell Northern Research (Ottawa) on PBX design in 1969 1972 and 1978. Since 1969 he has been with the University of Saskatchewan where he is currently Professor of Electrical Engineering. He teaches courses in electronics and communications and also presents short courses on the fundamentals of telephony. Current research interests are in data transmission signal processing architecture and frame synchronization for PCM and spread spectrum systems. He has been granted five patents relating to commercial products in delta-modulation telephone line interfacing and computer data transmission. In 1986 he was on sabbatical leave at BNR Inc. and worked with an ANSI committee on the standardization of FDDI-II a combined voice and data system. Mr. Dodds is a Registered Consulting Engineer in Saskatchewan. Witold A. Krzyden received his MSc. (Eng.) and Ph.D. degrees (both in Electrical Engineering) in 1970 and 1978 respectively from the Poznan Technical University in Poznan Poland. He was awarded the Minister's of Science and Technology Prize of Excellence for his Ph.D. thesis. From 1970 to 1978 he was a Research Engineer and Teaching Assistant and then from 1978 to 1980 an Assistant Professor of Electrical Engineering at the Poznan Technical University. In 1980 he won a Dutch Government Research Fellowship at the Twente University of Technology in Enschede the Netherlands for the year of 1980/1981. In the following year of 1981/82 he was a Research Assistant Professor there. From 1982 to 1986 he was an Assistant Professor of Electrical Engineering at Lakehead University in Thunder Bay Ontario Canada. In 1986 he joined the Univeristy of Alberta and Alberta Telecommunications Research Centre (now Telecommunications Research Laboratories or TRLabs) as an Associate Professor of Electrical Engineering. Currently he is a Professor of E

The 5.5 km range of the basic rate ISDN loop has been extended by using a negative impedance amplifier and by using a 2 wire/4 wire (2w/4w) amplifier. The negative impedance amplifier extends the range of the loop by 1.0 km, whereas the 2w/4w amplifier extends the range by 1.5 km at the expense of increased complexity. As part of the amplifer design, a resistor/capacitor network has been developed which closely matches the characteristic impedance of telephone cable. Error rate tests have been conducted using various lengths of cable and an operating ISDN line.

关键词： ISDN PHYSICAL LAYER BASIC RATE LOOP RANGE EXTENSION

来源：评论

学校读者我要写书评

暂无评论

LASER-BASED 3-D VOLUMETRIC DISPLAY system - THE IMPROVED 2ND GENERATION

引用

NAVAL ENGINEERS JOURNAL 1995年第3期107卷 233-243页

作者： SOLTAN, P TRIAS, J DAHLKE, W LASHER, M MCDONALD, M John A. Trias:received his Bachelor's degree in Physical Science from the University of California at Berkeley in 1956. In the 1960s he worked on the synthesis of ruby and sapphire crystals for lasers. He has been with the Naval Ocean Systems Center (NOSC—now NR aD) since 1964. He worked with the development of new rare-earth chelates for dye lasers which were used in prototype optical communication projects at NOSC. In 1981. he developed and demonstrated the first laser-addressed liquid crystal light valve large-screen projection display system operating at video scan rates. His work as project leader for the Command Control Technology Task at NR aD involves advancing laser light valve display technology. His current interests are in the development of direct-view high-resolution laser displays using acousto-optic devices and in 3-D volumetric displays using high-speed acousto-optic scanning and a nonmoving volume screen. Mr. Trias has 15 patents and has authored 35 technical publications Malvyn C. McDonald:received both his B.S. and M.S. degrees in Mechanical Engineering in 1971 and 1976 respectively from San Diego State University. He has twenty-three years of engineering experience with professional emphasis on design and development of shipboard submarine and shore-based communication systems electronics and optics packaging systems and structural and dynamic mechanical systems. He is experienced in development of systems from the conceptual stage to pre-production prototypes including shock and vibration analyses fabrication testing and evaluation and engineering documentation.

NRaD, the RDT&E Division of the Naval Command, Control and Ocean Surveillance Center (NCCOSC), has developed its second generation device for displaying data, information and scenes in a three-dimensional volume of image space. The device incorporates a 36-inch diameter double helix that spins at approximately 10 revolutions per second, providing a means to address a cylindrical volume. Under computer control, a laser beam is directed to illuminate certain discrete volume points (voxels) on the helix needed to create a scene. The laser light scatters from the surface of the helix, so, to the observer, each voxel appears to emanate from specific points in space. Each point has x-y coordinates determined by the position of the laser beam, and a z coordinate determined by the height of the point on the helical surface. Any point within the cylindrical image volume can be computer-addressed to appropriately synchronize the laser beam, the Acousto-Optic (AO) Scanner and the phase of the helix, as shown in figures 1 and 8. Using a novel Acousto-Optic (AO) Random-Access Scanner, up to 40 thousand laser-generated voxels refreshed at 20 Hz per color are projected onto the reflective surface of the rotating helix. (This is about 10 times more than the current state of the art.) The higher resolution allows improved color images, updated in real time, for group viewing with the naked eye (see the optical head in figure 8).

关键词：

来源：评论

学校读者我要写书评

暂无评论

CMOS overcurrent test: BIC-monitor design, circuit partitioning and test patterns

CMOS overcurrent test: BIC-monitor design, circuit partition...

引用

EUROMICRO Conference

作者： H.T. Vierhaus L. Muhlack U. Glaser German National Research Center for Computer Science (GMD) System Design Technology Institute Augustin Germany

The successful implementation of built-in current monitoring circuitry is the key to the practical applicability of defect-oriented CMOS test via current effects. However, inherent constraints due to dynamic effects and the overhead for large chips are still open problems. This paper introduces a novel current monitor design, provides guidelines for circuit partitioning into current-monitor blocks and gives realistic numbers of test patterns for current-versus voltage test.< >

关键词： Circuit testing Circuit faults Monitoring Voltage Delay effects CMOS technology system testing Impedance Proposals Bipolar transistors

来源：评论

学校读者我要写书评

暂无评论

Testability analysis for test generation in synchronous sequential circuits

Testability analysis for test generation in synchronous sequ...

引用

IEEE International Conference on Computer design: VLSI in Computers and Processors, (ICCD)

作者： R. Wolber U. Glaser H.T. Vierhaus The German National Research Center for Computer Science Institute System Design Technology Sankt Augustin Germany

Due to the complexity of test generation for stuck-at-faults in synchronous sequential circuits and the permanently increasing problem-size, algorithms solving this problem cannot work with acceptable CPU-time, even on computer systems with very high performance. Relating to this context this paper presents a new testability analysis guiding algorithms for sequential test generation. This testability analysis consists of two separated parts: First, a new technique for the detection of untestable stuck-at-faults; second, heuristics used to guide the decision process in test generation algorithms. Experimental results of sequential benchmark circuits allow us to conclude that our testability analysis provides less CPU-time for sequential test generation than other well-known testability analysis tools.< >

关键词： Circuit testing Sequential analysis Synchronous generators Sequential circuits Circuit faults Electrical fault detection Fault detection system testing Integrated circuit testing Time measurement

来源：评论

学校读者我要写书评

暂无评论

Towards a coordinated development of numerical CACSD software: the RASP/SLICOT compatibility concept

Towards a coordinated development of numerical CACSD softwar...

引用

IEEE International Symposium on Computer Aided Control system design (CACSD)

作者： G. Grubel A. Varga A. van den Boom A.J. Geurts Control Design Engineering Institute for Robotics and System Dynamics DLR-Oberpfaffenhofen Wessling Germany Department of Electrical Engineering Eindhovan University of Technology Eindhoven Netherlands Department of Mathematics & Computer Science Eindhovan University of Technology Eindhoven Netherlands

The concept of mutual compatibility is introduced. It has arisen from the cooperation of the developers of the RASP and SLICOT libraries. With this concept it becomes feasible to coordinate the development of several libraries leading to a reduction of software implementation and testing efforts without giving up the identity of the separate libraries. A first development along the lines of the mutual compatibility concept is the recently developed model reduction library RASP-MODRED.< >

关键词： Software libraries MATLAB Data structures Software testing Mathematics Size control Lighting control Control design design engineering Robot kinematics

来源：评论

学校读者我要写书评

暂无评论

Limitations in predicting defect level based on stuck-at fault coverage

Limitations in predicting defect level based on stuck-at fau...

引用

VLSI Test Symposium

作者： J. Park M. Naivar R. Kapur M.R. Mercer T.W. Williams Department of ECE University of Texas Austin USA Life Science Division Los Alamos National Laboratory USA Design for Testability Department IBM System Technology Division IBM

The stuck-at fault model has been used over decades as a guide to the test generation process and as an evaluation mechanism for the quality of the test set. As demands on quality have increased, the use of the stuck-at fault model as a predictor of the defect level has been questioned. This paper provides some insight on the issue and shows the limitations of using the stuck-at fault coverage to predict the defect level. The authors demonstrate that as defect level decreases the uncertainty of the estimate grows.< >

关键词： Circuit faults Circuit testing Performance analysis Integrated circuit modeling system testing Contracts design for testability Predictive models Performance evaluation Manufacturing processes

来源：评论

学校读者我要写书评

暂无评论

Dvelopments in the Field of Control Libraries and their Impact on Control Eduction

引用

IFAC Proceedings Volumes 1994年第9期27卷 269-272页

作者： Ad Van Den Boom Aloys Geurts Georg Grübel Andras Varga Dept. of Electrical Engineering Eindhoven University of Technology NL-5600 MB Eindhoven The Netherlands Dept. of Mathematics and Computing Science Eindhoven University of Technology NL-5600 MB Eindhoven The Netherlands DLR-Oberpfaffenhofen Control Design Engineering Institute for Robotics and System Dynamics D-82230 Wessling Germany

The state of the art of control libraries is presented. Attention is paid to the joining of efforts to developing a future mature control library based on the two existing libraries in active development RASP and SLIC... 详细信息

关键词： Control libraries computer aided system design numerical control software education educational aids

来源：评论

学校读者我要写书评

暂无评论

Whistle-blowing in enforcement of environmental regulations

Whistle-blowing in enforcement of environmental regulations

引用

IEEE International Conference on systems, Man and Cybernetics

作者： K.W. Hipel D.M. Kilgour Xianpei Yin Department of Statistics and Actuarial Science University of Waterloo ONT Canada Department of Mathematics Wilfrid Laurier University ONT Canada Department of System Design Engineering University of Waterloo ONT Canada Department of Management Engineering Chengdu University of Information and Technology Chengdu Sichuan China

A mathematical model is used to assess the effectiveness of the reporting system commonly referred to as whistle-blowing used in the enforcement of environmental laws and regulations. To model realistically environmental enforcement problems such as compliance to water and air quality standards, the formal model is constructed using noncooperative game theory. To demonstrate the benefits to an environmental agency that uses a reporting system with essentially free reporting information, a model with a reporting system is rigorously compared to one without. By calculating and comparing Nash equilibria over a range of values of model parameters, the conditions under which whistle-blowing can be truly effective are identified. Overall, it is found that whistle-blowing can be helpful for reducing violations of environmental standards, thereby maintaining or improving environmental quality.< >

关键词： Power system modeling Mathematical model Game theory Marine animals Rivers Environmentally friendly manufacturing techniques Industrial pollution systems engineering and theory Statistics Mathematics

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：