1999 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (PACRIM 1999). Conference Proceedings (Cat. No.99CH36368)最新文献_第5页

Navigational integration of autonomous Web information sources by mobile users 移动用户对自主Web信息源的导航集成

1999 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (PACRIM 1999). Conference Proceedings (Cat. No.99CH36368) Pub Date : 1999-08-22 DOI: 10.1109/PACRIM.1999.799529

W. Tung, T. Ohmori, M. Hoshi

引用次数: 1

A frequency domain implementation of the Butler Matrix direction finder 一个频域实现的巴特勒矩阵测向器

1999 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (PACRIM 1999). Conference Proceedings (Cat. No.99CH36368) Pub Date : 1999-08-22 DOI: 10.1109/PACRIM.1999.799598

Y. Chan, Q. Yuan, R. Inkol

引用次数: 1

An integrated approach for real-time system design 实时系统设计的集成方法

1999 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (PACRIM 1999). Conference Proceedings (Cat. No.99CH36368) Pub Date : 1999-08-22 DOI: 10.1109/PACRIM.1999.799478

Lichen Zhang, P. Yuan

{"title":"An integrated approach for real-time system design","authors":"Lichen Zhang, P. Yuan","doi":"10.1109/PACRIM.1999.799478","DOIUrl":"https://doi.org/10.1109/PACRIM.1999.799478","url":null,"abstract":"A variety of tools, based on object-oriented design methodology, are already available commercially. Many new tools are being developed. However, tools for the design of real-time systems are still scarce. This paper presents a working environment for the development of real-time systems. This working environment is a collection of CASE tools, which are a heavy graphical orientation intended for the specification, analysis, design, and implementation of large and complex real-time systems by object-oriented techniques. It enables a user to use object-oriented techniques to prepare, analyze, and debug diagrammatic, yet precise descriptions of the objects of the system under development from five interrelated points of views: capturing environment, functionality, behavior, performance and hardware. In addition to the use of performance analysis tools, the main novelty of our working environment is in the fact that it can design real-time systems at different levels of granularity, carry out rigorous execution, simulation and animation of the described system, and create running code automatically.","PeriodicalId":176763,"journal":{"name":"1999 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (PACRIM 1999). Conference Proceedings (Cat. No.99CH36368)","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131513617","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

Simultaneous voice and Internet data on rural subscriber lines 同时语音和互联网数据在农村用户线路

1999 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (PACRIM 1999). Conference Proceedings (Cat. No.99CH36368) Pub Date : 1999-08-22 DOI: 10.1109/PACRIM.1999.799467

D. Dodds, L. Swanson

引用次数: 0

Cost and performance optimization in IP switched-routers IP交换路由器的成本与性能优化

1999 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (PACRIM 1999). Conference Proceedings (Cat. No.99CH36368) Pub Date : 1999-08-22 DOI: 10.1109/PACRIM.1999.799547

H. Chan, H. Alnuweiri, V. Leung

{"title":"Cost and performance optimization in IP switched-routers","authors":"H. Chan, H. Alnuweiri, V. Leung","doi":"10.1109/PACRIM.1999.799547","DOIUrl":"https://doi.org/10.1109/PACRIM.1999.799547","url":null,"abstract":"The explosive growth of Internet users, the increased user demand for bandwidth, and the declining cost of technology, has all resulted in the emergence of new classes of high-speed distributed IP router architectures with packet forwarding rates on the order of gigabits or even terabits per second. This paper develops an analytical framework for modeling and analyzing the impact of technological factors on the cost-performance trade-offs in distributed router architectures. The main trade-off in a distributed router results naturally from moving the main packet forwarding and processing power from a centralized forwarding engine to an ensemble of smaller forwarding engines either dedicated to or shared among the line cards. Processing packets in these smaller engines can be much cheaper (by as much two to three orders of magnitude) than in a centralized forwarding engine. Therefore, the main goal of our modeling framework is to determine an optimal allocation of processing power to the forwarding engines (in a distributed router) to minimize overall router cost while achieving a given level of packet forwarding performance. Two types of router models are analyzed using the proposed framework: a distributed router architecture and parallel router architecture.","PeriodicalId":176763,"journal":{"name":"1999 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (PACRIM 1999). Conference Proceedings (Cat. No.99CH36368)","volume":"126 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128203397","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

Feature extraction algorithm for beef marbling 牛肉大理石纹特征提取算法

1999 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (PACRIM 1999). Conference Proceedings (Cat. No.99CH36368) Pub Date : 1999-08-22 DOI: 10.1109/PACRIM.1999.799514

F. Yoshikawa, K. Toraichi, N. Wada, N. Otsu, H. Nakai, M. Mitsumoto, K. Katagishi, Kwan Paul Wing Hing

引用次数: 5

Task scheduling algorithms based on heuristic search taking account of communication overhead 考虑通信开销的启发式搜索任务调度算法

1999 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (PACRIM 1999). Conference Proceedings (Cat. No.99CH36368) Pub Date : 1999-08-22 DOI: 10.1109/PACRIM.1999.799498

M. Kai, M. Shimada

引用次数: 3

Adaptive suppression of skywave interference in HF surface wave radar using auxiliary horizontal dipole antennas 利用辅助水平偶极子天线自适应抑制高频表面波雷达天波干扰

1999 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (PACRIM 1999). Conference Proceedings (Cat. No.99CH36368) Pub Date : 1999-08-22 DOI: 10.1109/PACRIM.1999.799494

H. Leong

{"title":"Adaptive suppression of skywave interference in HF surface wave radar using auxiliary horizontal dipole antennas","authors":"H. Leong","doi":"10.1109/PACRIM.1999.799494","DOIUrl":"https://doi.org/10.1109/PACRIM.1999.799494","url":null,"abstract":"This paper presents the results of a study to evaluate the effectiveness of an adaptive technique using horizontal dipoles to suppress the skywave interference in HF surface wave radar (HFSWR). Four auxiliary horizontal dipole antennas, configured in the form of two separate crosses, are used to form an adaptive system with the vertically polarized antennas (VPA) of a HFSWR system. The outputs of the horizontal dipoles are correlated with the summed output of the VPAs to cancel the interference component in the output of the VPAs. Two slightly different methods are used in the estimation of the correlation coefficients. The first method uses the samples at the far ranges of the radar. The second method uses the samples in the nearby range bins. The results of using the first method have been presented by Leong (see RADAR'97, IEE Conf., Edinburgh, Scotland, p.26-30, 1997). Here we present the results of using the second method. With the first method, the interference-plus-noise power (INP) is reduced by more than 13 dB, and the Bragg-to-interference-plus-noise-ratio (BINR) increases by up to 21 dB. With the second method, the INP is reduced by more than 17 dB, and the BINR increases by up to 25 dB. Both sets of the results show that the adaptive techniques are effective in suppressing the skywave interference.","PeriodicalId":176763,"journal":{"name":"1999 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (PACRIM 1999). Conference Proceedings (Cat. No.99CH36368)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129821329","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: 7

Convergence analysis of complex adaptive IIR notch filters with colored noisy signal 彩色噪声信号下复杂自适应IIR陷波滤波器的收敛性分析

1999 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (PACRIM 1999). Conference Proceedings (Cat. No.99CH36368) Pub Date : 1999-08-22 DOI: 10.1109/PACRIM.1999.799542

S. Nishimura, Hai-Yun Jiang, T. Hinamoto

引用次数: 1

New resource reservation architecture with user interactions 具有用户交互的新资源预留架构

1999 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (PACRIM 1999). Conference Proceedings (Cat. No.99CH36368) Pub Date : 1999-08-22 DOI: 10.1109/PACRIM.1999.799574

F. Sallabi, A. Karmouch

引用次数: 3