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Communications, Radar and Signal Processing, IEE Proceedings F

Issue 5 • Date August 1986

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Displaying Results 1 - 13 of 13
  • Generation of representative members of an RrSst weighted median filer class

    Publication Year: 1986, Page(s):445 - 448
    Cited by:  Papers (10)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (500 KB)

    The weighted median filter (WMF) is a generalisation of the median filter. The WMF has been described elsewhere, where it was shown that a given WMF class operates in a finite number of ways. An expression for the number of modes of operation of any WMF class, in a given group of classes, has recently been derived. Here, an algorithm is described for constructing a complete set of representative m... View full abstract»

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  • Low-power integrable paging receiver architecture

    Publication Year: 1986, Page(s):449 - 455
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (975 KB)

    A receiver architecture is described that is ideally suited to UK paging applications. The receiver is similar to a direct conversion receiver, in that the absence of an `image¿¿ response allows integration, but it only requires a single front-end mixer and so consumes less power. To achieve this the local oscillator frequency is offset slightly from the incoming carrier frequency, allowing the mo... View full abstract»

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  • FMCW channel sounder with digital processing for measuring the coherence of wideband HF radio links

    Publication Year: 1986, Page(s):456 - 462
    Cited by:  Papers (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (991 KB)

    Multipath propagation, and in particular the interference between the ordinary and the extraordinary waves, places a fundamental constraint on the performance of wideband HF skywave radio links. Furthermore, the dispersive nature of ionospheric propagation causes phase nonlinearity and hence distortion of narrow pulses. In the paper an FMCW wideband sounder built for the purposes of characterising... View full abstract»

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  • Reception of Decca Navigator multipulse and zone identification transmissions by single-channel receivers

    Publication Year: 1986, Page(s):463 - 469
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (961 KB)

    Receivers for the Decca Navigator system have recently been developed in which a single, frequency-agile receiving channel, operating under microprocessor control, replaces the five single-frequency channels of a conventional receiver. The paper describes techniques which allow such receivers to utilise the multipulse lane-identification and the zone-identification transmissions of the Decca chain... View full abstract»

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  • Theoretical performance of an adaptive frequency-hopping modem at HF

    Publication Year: 1986, Page(s):470 - 475
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (782 KB)

    A digital modem is proposed which uses a frequency-hopping sixth-order frequency diversity signal, and which incorporates the automatic excision of interference from other HF users. The modem has the property of achieving low error rates at low data rates (75 bits/s), in the presence of severe interference from other HF users, frequency-selective fading and noise. The interference is defined by si... View full abstract»

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  • Book review: Monopulse Principles and Techniques

    Publication Year: 1986
    IEEE is not the copyright holder of this material | PDF file iconPDF (130 KB)
    Freely Available from IEEE
  • Stochastic modelling of radar returns

    Publication Year: 1986, Page(s):476 - 481
    Cited by:  Papers (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (894 KB)

    The paper considers the stochastic modelling of radar returns. In particular, returns from a typical airport surveillance radar (ASR) system have been modelled as autoregressive-moving average (ARMA) processes. Both maximum-likelihood (ML)- and autocorrelation-based techniques have been used. Order selection algorithms were studied and modified to optimise their performance for short-data records ... View full abstract»

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  • Book review: Space Remote Sensing Systems¿An Introduction

    Publication Year: 1986
    IEEE is not the copyright holder of this material | PDF file iconPDF (145 KB)
    Freely Available from IEEE
  • Image sequence coding by three-dimensional block vector quantisation

    Publication Year: 1986, Page(s):482 - 487
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (961 KB)

    In the paper results on the use of vector quantisation for interframe image coding for compression are presented. The initial stage in vector quantisation is the formation/extraction of vectors from the data source. Two vector formation schemes, generalized from intraframe image coding, are proposed and evaluated on a test image sequence. The first, direct three-dimensional block vector quantisati... View full abstract»

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  • Conference report: Neural Networks for Computing (Snowbird, Utah, USA, April 1986)

    Publication Year: 1986
    IEEE is not the copyright holder of this material | PDF file iconPDF (161 KB)
    Freely Available from IEEE
  • Bounded distance coset decoding of convolutional codes

    Publication Year: 1986, Page(s):488 - 492
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (657 KB)

    The paper presents a maximum-likelihood consistent bounded distance decoding algorithm for convolutional codes. The algorithm correctly decodes all error sequences which fall within the error-correcting sphere. A class of codes is defined, in which the decoder exploits the fact that only certain error sequences need to be corrected. For these codes the decoding is based on a reduced encoder state ... View full abstract»

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  • Optimisation philosophy of acquisition process for tracking radar

    Publication Year: 1986, Page(s):493 - 498
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (605 KB)

    A theoretical model for the quantitative analysis of sequential acquisition by a tracking radar is presented. The relation between the acquisition performance and radar and designation system parameters is established. A method to optimise the acquisition process is suggested and some numerical examples are given. View full abstract»

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  • Vulnerability of digital satellite business data links to optimised jamming

    Publication Year: 1986, Page(s):499 - 501
    IEEE is not the copyright holder of this material | PDF file iconPDF (402 KB)
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Aims & Scope

The latest version of this title is Radar, Sonar & Navigation, IET.

Full Aims & Scope