IEEE Transactions on Vehicular Technology

Issue 4 • Nov. 1987

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Displaying Results 1 - 7 of 7
  • [Front cover and table of contents]

    Publication Year: 1987, Page(s): c1
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  • Antenna diversity in mobile communications

    Publication Year: 1987, Page(s):149 - 172
    Cited by:  Papers (712)  |  Patents (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1913 KB)

    The conditions for antenna diversity action are investigated. In terms of the fields, a condition is shown to be that the incident field and the far field of the diversity antenna should obey (or nearly obey) an orthogonality relationship. The role of mutual coupling is central, and it is different from that in a conventional array antenna. In terms of antenna parameters, a sufficient condition fo... View full abstract»

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  • The near field of annular antennas

    Publication Year: 1987, Page(s):173 - 183
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1651 KB)

    The circular loop antenna has been investigated by many authors beginning as early as 1897 with Pocklington's study of the thin wire loop excited by a plane wave. Later, both Hallen and Storer considered the case of driven antennas. All of these authors used a Fourier series expansion for the loop current, and the latter two found numerical difficulties with the approach. These difficulties, as po... View full abstract»

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  • Multipath delay spread in a hilly region at 210 MHz

    Publication Year: 1987, Page(s):184 - 187
    Cited by:  Papers (16)  |  Patents (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (346 KB)

    Investigations of multipath propagation in hilly terrain show that the delay spread between the first and the last significant path may be greater than 30μs. The method of measurement is described, and the propagation conditions are illustrated by representative examples. View full abstract»

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  • New cellular schemes for spectral efficiency

    Publication Year: 1987, Page(s):188 - 192
    Cited by:  Papers (35)  |  Patents (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (423 KB)

    Assuming the constraint of an allocated frequency spectrum, two new schemes are suggested to increase spectral efficiency. Furthermore, the two new schemes can be integrated to become a hybrid system and offer greater performance which takes advantage of the merits and performance of each individual scheme. View full abstract»

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  • An improvement effect by a hard-limiter on differential detection performance of PSK in frequency-selective fading

    Publication Year: 1987, Page(s):193 - 200
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (931 KB)

    Differential detection of PSK after an IF hard-limiter is described. This detection scheme is well known for the reason that the receiver structure is greatly simplified with saturated amplifiers and a digital-type differential detector. In addition, it can give the improved effect of reducing eye pattern timing fluctuation which is found to be a cause of excessive errors in a frequency-selective ... View full abstract»

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  • [Back cover]

    Publication Year: 1987, Page(s): c4
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Aims & Scope

IEEE Transactions on Vehicular Technology covers land, airborne, and maritime mobile services, vehicular electrotechnology, equipment, and systems identified with the automotive industry.

Full Aims & Scope

Meet Our Editors

Editor-in-Chief
Nei Kato, Professor
Graduate School of Information Sciences (GSIS)
Tohoku University
Aramaki-Aoba 6-3-09, Aoba-ku, Sendai, 980-8579, JAPAN
Email: kato@it.is.tohoku.ac.jp