IEE Proceedings F (Communications, Radar and Signal Processing)

IEE Proceedings F (Communications, Radar and Signal Processing)

Online ISSN 2053-7956
Print ISSN 0143-7070

Published from 1980-1988, IEE Proceedings F contained significant and original contributions on communications, radar and signal processing.

This journal was previously known as IEE Proceedings I (Communications, Speech and Vision) 1989-1993. ISSN 0956-3776. more..

This journal was previously known as IEE Proceedings F (Radar and Signal Processing) 1989-1993. ISSN 0956-375X. more..

This journal was previously known as Proceedings of the Institution of Electrical Engineers 1963-1979. ISSN 0020-3270. more..

Volumes & issues:

Show / Hide details

Latest content

Representation of radar sea clutter
- Author(s): C.J. Oliver
- + Show details - Hide details
- p. 497 –500 (4)
  Sea clutter data obtained with a land-based X-band radar are analysed in terms of a correlated gamma-distributed noise model. Results obtained with both vertical-vertical and horizontal–horizontal transmit-receive polarisations are shown to be broadly compatible with the model. As a test of the assumptions inherent to the model, we next simulate textures having the same autocorrelation function as the original image data. General agreement is again observed; discrepancies can be ascribed to specific failures of the assumptions.
Level crossing rate and average fade duration for time diversity reception in Rayleigh fading conditions
- Author(s): F. Adachi ; M.T. Feeney ; J.D. Parsons
- + Show details - Hide details
- p. 501 –506 (6)
  Time diversity, in which the same data are transmitted several times, is attractive in digital land mobile radio and is simple to implement because only one antenna is required. Expressions for the level crossing rate (LCR) and average fade duration (AFD) are derived in this paper for a system in which each data symbol is transmitted twice (two-branch diversity). As far as LCR is concerned, the expected diversity advantages can be obtained for a data repetition period, normalised by the maximum Doppler frequency, of about 0.2. For a large data repetition period, the AFD is halved. Measured values of LCR and AFD, obtained from 900 MHz signals received at a base station site, are in good agreement with the predicted values.
New class of double inductive binary error correcting codes based on the class of Reed–Muller codes
- Author(s): D. Kabilafkas and L.F. Turner
- + Show details - Hide details
- p. 507 –512 (6)
  A new class of binary codes is introduced. The codes have length n = 1.5 · 2^m (m ≥ 3), and have a similar ‘double inductive’ structure to that possessed by the class of Reed-Muller (RM) codes. The new codes are structured such that their length-to-distance ratio n/d = 2^m, m ≥ 2. For rates less than 1/2, the new codes have a higher rate than the next Reed-Muller code of the same order and length n = 2 · 2^m.
Performance of time-frequency coded spread spectrum systems operating over noisy fading channels
- Author(s): P. Belezinis and L.F. Turner
- + Show details - Hide details
- p. 513 –519 (7)
  The performance of time-frequency coded spread spectrum systems (TFCSSS) is considered when the systems are operating over noisy fading channels. Systems employing the random addressing technique of Viterbi [1] and the addressing scheme developed more recently by Einarsson [3] are examined. An exact expression is derived for the word-error probability associated with the Viterbi scheme. This expression provides the tightest known upper bound to the performance of the Einarsson addressing scheme. Also in the paper the question of the most appropriate way of using power is considered, and it is shown that if the possibility of using an increased transmitter power exists, it is better to increase the power per transmission chip to a higher level and keep it constant, irrespective of the number of users occupying the chip, rather than to use a power level that increases with the number of users occupying the chip.
Performance of slot synchronous time-frequency coded spread spectrum systems
- Author(s): P. Belezinis ; L.F. Turner ; I.M.I. Habbab
- + Show details - Hide details
- p. 520 –527 (8)
  The operation of slot synchronous time-frequency coded spread spectrum systems is considered, and an exact closed-form expression is derived for the probability of error. This exact expression is, in general, very difficult to evaluate, and as an aid to estimating system performance, three new upper bounds are derived. These bounds are such that the degree of difficulty of computation increases with increasing tightness of the bounds. The bounds are, however, all relatively easy to evaluate. Simulation results relating to error probabilities are presented and compared with values computed from the various bounds.

Most viewed content for this Journal

Article

content/journals/ip-f-1

Journal

Most cited content for this Journal

We currently have no most cited data available for this content.

Login

Not registered yet?

Share

Tools

Login to add to favourites

Thank you

Latest tweets

Key

IEE Proceedings F (Communications, Radar and Signal Processing)

Volumes & issues:

Volume 135 (1988)

Volume 134 (1987)

Volume 133 (1986)

Volume 132 (1985)

Volume 131 (1984)

Volume 130 (1983)

Volume 129 (1982)

Volume 128 (1981)

Volume 127 (1980)

Latest content

Representation of radar sea clutter

Level crossing rate and average fade duration for time diversity reception in Rayleigh fading conditions

New class of double inductive binary error correcting codes based on the class of Reed–Muller codes

Performance of time-frequency coded spread spectrum systems operating over noisy fading channels

Performance of slot synchronous time-frequency coded spread spectrum systems

Most viewed content for this Journal

Most cited content for this Journal