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Communications, Radar and Signal Processing, IEE Proceedings F

Issue 4 • Date July 1984

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Displaying Results 1 - 15 of 15
  • Performance comparison of two suboptimum detection procedures in real environment

    Publication Year: 1984, Page(s):341 - 344
    Cited by:  Papers (5)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (544 KB)

    Two suboptimum detection procedures, one based on the binary matched filtering and the other based on the weighting of partial decisions, were introduced earlier into the literature as very suitable for the cost-effective microprocessor-based implementation of the medium-speed voice-band data modems. Previous analysis of these two detection procedures was limited to the case when only Gaussian noi... View full abstract»

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  • Minimum bandwidth signals with various combinations of specified waveform parameters

    Publication Year: 1984, Page(s):345 - 348
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (296 KB)

    For each of four separate conditions placed on a waveform (amplitudes at certain epochs and slopes at those epochs), constraints on the corresponding spectra are obtained for a system of any bandwidth. Waveforms which satisfy certain combinations of amplitude and slope constraints, within a minimum bandwidth, are shown to have unique spectra. The method confirms that Nyquist's first and second con... View full abstract»

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  • Generating analogue FM pulses using a 1 bit digital technique

    Publication Year: 1984, Page(s):349 - 356
    Cited by:  Papers (3)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (848 KB)

    A method of generating sinusoidal frequency-modulated pulses using a 1 bit digital technique is developed. The method utilises the information in the zero crossings of the signal, rather than sampling and voltage quantisation, to reconstruct the signal. An intuitive view of the spectrum of a frequency-modulated square wave (FMSW) is derived, and confirmed by mathematical analysis. The spectrum con... View full abstract»

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  • Combined mobile telephone and dispatch services in a cellular land-mobile radio system

    Publication Year: 1984, Page(s):357 - 363
    Cited by:  Papers (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (851 KB)

    In this paper a cellular land-mobile radio system with combined mobile telephone and dispatch services is considered. A hybrid scheme for channel assignment is considered. Two flow control levels for dispatch users are introduced to preserve the quality of mobile telephone service. Results are obtained by computer simulation of the system. View full abstract»

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  • Data transmission over UHF fading mobile radio channels

    Publication Year: 1984, Page(s):364 - 374
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1470 KB)

    A combination of transparent tone-in-band (TTIB) and feedforward signal regeneration (FFSR) audio signal-processing techniques enable the efficient transmission of speech and data communications over mobile radio links, and amplitude companded pilot tone single sideband (SSB) in particular. The contribution is concerned primarily with data communications, coherent and noncoherent, over such networ... View full abstract»

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  • Fast start-up channel estimation

    Publication Year: 1984, Page(s):375 - 382
    Cited by:  Papers (23)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (989 KB)

    The paper considers the receiver of a digital data-transmission system which is fed from a number of different transmitters in an arrangement where separate short messages are transmitted, in turn, from the different transmitters, with arbitrary time gaps between adjacent messages when no signal is transmitted. The signals received from the different transmitters may be subjected to widely differe... View full abstract»

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  • IEE Colloquium on Electronic Support Measures

    Publication Year: 1984
    IEEE is not the copyright holder of this material | PDF file iconPDF (117 KB)
    Freely Available from IEEE
  • Multinotch logic-product polarisation suppression filters: a typical design example and its performance in a rain clutter environment

    Publication Year: 1984, Page(s):383 - 396
    Cited by:  Papers (8)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1662 KB)

    Polarisation filtering is applied in radar systems to improve target detection in adverse environments. Fluctuations of the polarisation states of unwanted incident signals dictate the need for filters that suppress such signals in the polarisation domain and cover a controllable area of polarisation space. This has led to the concept of the multinotch logic-product (MLP)polarisation filter which ... View full abstract»

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  • Threshold detection of CPFSK in non-Gaussian noise

    Publication Year: 1984, Page(s):397 - 402
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (490 KB)

    A locally optimum receiver structure is derived for the coherent detection of continuous phase frequency shift keying in non-Gaussian noise. Performance of the receiver, which consists of a zero-memory nonlinearity followed by a correlator, is evaluated for a number of important noise models. The effects of varying the observation interval and modulation index on receiver error probability are det... View full abstract»

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  • Performance analysis of 16-ary QAM signalling through two-link nonlinear channels in additive Gaussian noise

    Publication Year: 1984, Page(s):403 - 406
    Cited by:  Papers (6)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (432 KB)

    This paper considers the problem of evaluating the performance of a 16-ary quadrature amplitude modulation (QAM) signal transmitted through a bandpass nonlinearity (BPNL), exhibiting AM-AM and AM-PM conversions, and in the presence of additive gaussian noise (AGN) both preceding and following the nonlinearity. An expression for the error probability is derived and computed. Also, the effect of TWT... View full abstract»

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  • New direct regenerator for 16-ary QAM signalling

    Publication Year: 1984, Page(s):407 - 411
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (569 KB)

    This paper proposes a new 16-ary quadrature amplitude modulation (QAM) direct regenerator to be used in digital communications systems. Theoretical analysis follows to evaluate the performance of a two-link system in additive Gaussian noise (AGN) incorporating a practical 16-ary QAM direct regenerator and an ideal coherent receiver. In addition to nonlinearities and circuit limitations in the rege... View full abstract»

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  • New syndrome decoding techniques for the (n,k) convolutional codes

    Publication Year: 1984, Page(s):412 - 416
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (644 KB)

    This paper presents a new syndrome decoding algorithm for the (n,k) convolutional codes (CCs). The construction of the trellis diagram of this algorithm is simpler than the syndrome decoding algorithms of Schalkwijk, Vinck and De Paepe. The new algorithm is based on the general solution of the syndrome equation, a linear diophantine equation for the error polynomial vector E(D). The set of diophan... View full abstract»

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  • Formulas for measuring radar ECCM capability

    Publication Year: 1984, Page(s):417 - 423
    Cited by:  Papers (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (830 KB)

    In view of the lack of a simple and generalised method for measuring radar ECCM capability, a set of formulas are derived for calculation of radar anticlutter, antijamming and generalised ECCM capability. The fundamental part of these formulas consists of the technical parameters of the radar and represents the radar potential ECCM capability. The supplementary part of these formulas, expressed in... View full abstract»

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  • Comments on ¿Effectiveness of a ground jammer¿

    Publication Year: 1984
    IEEE is not the copyright holder of this material | PDF file iconPDF (141 KB)
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  • Comments on ¿Bit synchronisation method based on sensitivity function¿

    Publication Year: 1984
    IEEE is not the copyright holder of this material | PDF file iconPDF (106 KB)
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Aims & Scope

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

Full Aims & Scope