Communications, Radar and Signal Processing, IEE Proceedings F

Issue 1 • February 1981

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Displaying Results 1 - 9 of 9
  • Filtration of separable finite discrete signals

    Publication Year: 1981, Page(s):1 - 8
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (751 KB)

    The separation of additive, finite, discrete stochastic signals using the concept of the generalised ideal filter is considered. The autocorrelation of each component signal is assumed to be known. The conditions for existence of such a filter are determined, and an algorithm is developed for sequential implementation of the filter, updating the output with each input sample with simultaneous chec... View full abstract»

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  • Fast transforms for decoding Reed-Solomon codes

    Publication Year: 1981
    Cited by:  Papers (5)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (616 KB)

    In the paper it is shown that the Chinese remainder theorem when coupled with a modification of Winograd's method can be used to compute Fourier-like transforms over GF(2m), where m=2, 3,¿¿, 8. These new transform techniques are to decode Reed-Solomon codes of block length 2m¿¿1. The results are shown to be more efficient than the more conventional method. View full abstract»

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  • Performance of forward error correction and feedback coding schemes

    Publication Year: 1981, Page(s):15 - 22
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (746 KB)

    The use of codes in forward error correction and decision feedback schemes is analysed. Various comparisons of the two types of error control scheme are undertaken when finite and infinite repetitions are possible and when the feedback channel can be considered noisy or noiseless. These comparisons are based on the consideration of both the average information bit error probability and transmissio... View full abstract»

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  • Predictors of maximum-likelihood performance of an unknown channel

    Publication Year: 1981, Page(s):23 - 27
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (537 KB)

    The paper describes some simple and easily calculated measures of the amplitude distortion introduced by an unknown channel. These can be used to assess maximum-likelihood performance without the need for computer simulation. View full abstract»

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  • Joint optimisation of transmitter and receiver for digital transmission over multiple-channel systems

    Publication Year: 1981, Page(s):28 - 32
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (492 KB)

    The optimum linear multiple transmitting and receiving filters are determined for noisy multiple-channel systems using a criterion of minimum output noise variance under the constraints of zero intersymbol interference (ISI) and interchannel interference and of fixed transmitting power. The optimum transmitter appears to generate orthogonal vector functions. For these vector functions the cascade ... View full abstract»

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  • Channel estimation for an HF radio link

    Publication Year: 1981, Page(s):33 - 42
    Cited by:  Papers (10)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1147 KB)

    The paper describes some simple techniques for estimating the sampled impulse response of a time-varying channel, in the case where a maximum-likelihood detector is used at the receiver, and where severe intersymbol interference is, from time to time, introduced into the received signal. The estimators are studied for the particular application of a synchronous serial data-transmission system oper... View full abstract»

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  • Multipath and interference effects in secondary surveillance radar systems

    Publication Year: 1981, Page(s):43 - 53
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1425 KB)

    Secondary surveillance radar (SSR) offers many advantages for air traffic control (ATC) compared to normal (or primary) radar including substantially lower cost and improved performance. Because of the increasing reliance being placed on SSR by ATC a number of the system problems associated with SSR are becoming less easily tolerated. The paper discusses these problems, which mainly arise from mul... View full abstract»

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  • Measured performance of block-floating-point hardware FFT processor for real-time speech transform coding

    Publication Year: 1981, Page(s):54 - 60
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1073 KB)

    In order to explore experimentally the design of speech transform coding schemes it is necessary to implement forward and inverse FFT processors of sufficient accuracy that their contribution to the total distortion, over and above that of the source digitisation, is negligible. In this way we ensure that examination of rate-distortion coding tradeoffs is not obscured by additional distortion in t... View full abstract»

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  • Modern colour display and processing system for meteorological radars

    Publication Year: 1981, Page(s):61 - 68
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1123 KB)

    The paper describes a colour display and data processing system for use on conventional weather radars. It also discusses aspects of the meteorological echo characteristics, the implications on data processing equipment, and the implementation adopted in the Plessey Colourscan equipment to meet the requirements for quantitative analysis and storm warning applications. View full abstract»

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Aims & Scope

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

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