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Canadian Journal of Electrical and Computer Engineering

Issue 1 • Date N/A 1989

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Displaying Results 1 - 12 of 12
  • Canadian Journal of Electrical and Computer Engineering - Front cover

    Publication Year: 1989, Page(s): c1
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  • Inside front cover

    Publication Year: 1989, Page(s): c2
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  • Table of contents

    Publication Year: 1989, Page(s): 1
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  • Guest editorial

    Publication Year: 1989, Page(s): 2
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  • Random access systems: ALOHA's progeny

    Publication Year: 1989, Page(s):3 - 10
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1956 KB)

    Random access algorithms allow a large number of bursty data sources to share a common transmission medium. Such algorithms are essentially refinements of the distributed algorithm first introduced in the ALOHA system. Unlike techniques such as time division multiple access (TDMA), frequency division multiple access (FDMA) and polling, the performance of random access algorithms is insensitive to ... View full abstract»

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  • An interactive simulator for unbalanced systems

    Publication Year: 1989, Page(s):11 - 17
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2411 KB)

    Unbalances due to faults and line switching have traditionally been calculated using symmetrical components. By contrast, compensation methods or their mathematical equivalent, the matrix modification lemma (MML), a powerful tool for the solution of modified networks, are still employed primarily for contingency calculations. However, they can be efficiently applied to the calculation of voltages ... View full abstract»

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  • Worst-case error analysis of the balanced-matrix method of model reduction

    Publication Year: 1989, Page(s):18 - 23
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1471 KB)

    Worst-case error analysis, which was previously obtained for the aggregation method of model reduction, is given for the balanced-matrix method. A worst-case error is constructed for balanced reduced-order models approximating a given linear time-invariant, completely controllable, completely observable balanced system. Also, it is shown that the worst-case error bounds can apply to reduced-order ... View full abstract»

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  • A new technique for unconstrained and constrained linear LAV parameter estimation

    Publication Year: 1989, Page(s):24 - 30
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (994 KB)

    Presents a new technique for least absolute value (LAV) linear parameter estimation. The technique can be applied to unconstrained as well as equality- and/or inequality-constrained problems. The estimation problem is stated first. The least squares (LS) solution of the estimation problem is then presented and compared to the LAV solution. The new LAV technique is offered and compared to the stand... View full abstract»

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  • Digital quasi-impulse shaping for multi-level QAM and QPRS system

    Publication Year: 1989, Page(s):31 - 34
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1440 KB)

    Digital quasi-impulse-shaped signals for the transmission of Nyquist-shaped raised-cosine filtered signals and partial response signals are considered. Quasi-impulse signals do not require conventionally used phase-equalized x/sin(x)-shaped aperture equalizers. A simple logic circuit reduces the pulse-width of the conventional NRZ format, binary or multi level input data. The finite ... View full abstract»

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  • Call for papers

    Publication Year: 1989, Page(s):35 - 36
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  • [Back inside cover]

    Publication Year: 1989, Page(s): c3
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  • [Back cover]

    Publication Year: 1989, Page(s): c4
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Aims & Scope

The role of the Canadian Journal of Electrical and Computer Engineering is to provide scientific and professional activity for its members in Canada, the CJECE complements international journals and will be of particular interest to anyone involved in research and development activities in the field of electrical and computer engineering.

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Meet Our Editors

Editor-in-Chief
Dr. Shahram Yousefi
Dept. of Electrical and Computer
     Engineering
Queen's University