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Radio and Electronic Engineer

Issue 11 • Date November 1972

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Displaying Results 1 - 7 of 7
  • Half a century of engineering achievement

    Publication Year: 1972
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (139 KB)

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  • Designing a television line flywheel generator using a phase-locked loop integrated circuit

    Publication Year: 1972, Page(s):479 - 488
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1016 KB)

    The adaptation of phase-locked loop theory to meet the design requirements of a television line flywheel generator is discussed. The operation of a loop driven with narrow line sync. pulses is described with regard to both `in sync¿ and `pull-in¿ performance. A design example is given to illustrate the design procedure. View full abstract»

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  • Digital filters: a template method of design

    Publication Year: 1972, Page(s):489 - 495
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (763 KB)

    It is shown that the frequency response of digital filters of the cascade biquadratic (ratio of two quadratic polynomials) form can be described by a set of templates. These templates enable the effects of coefficient quantization to be seen. Consequently, by using the templates to design filters, coefficient quantization can be taken into account in the initial stages of the designing process. Ex... View full abstract»

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  • Synthesis of an optimal receiver structure for amplitude modulated pseudo-noise signals

    Publication Year: 1972, Page(s):496 - 498
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (297 KB)

    An optimal discrete-time receiver structure is derived for demodulation of an amplitude modulated pseudonoise carrier in the presence of white Gaussian noise. The receiver delivers maximum a posteriori estimates for the modulating information process and for the delay of the carrier. View full abstract»

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  • An experimental adaptively equalized modem for data transmission over the switched telephone network

    Publication Year: 1972, Page(s):499 - 507
    Cited by:  Papers (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1141 KB)

    The relative merits of the zero-forcing, mean-square error and quantized-feedback algorithms are compared for data transmission over the switched telephone network, bearing in mind the nature of the transmission impairments met in this medium. The design and performance of an experimental 4-level vestigial-sideband amplitude-modulated modem operating at a data signalling rate of 4800 bit/s with a ... View full abstract»

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  • M.O.S.F.E.T. temperature-drift performance limitations

    Publication Year: 1972, Page(s):508 - 510
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (616 KB)

    An analysis, employing a minimum of restrictive assumptions, is presented that allows the temperature drift performance of m.o.s.f.e.t.s operated at a constant drain current in the pinch-off region to be assessed. The parabolic variation of gate-source voltage with temperature for devices working in the vicinity of the minimum drift bias point is related to device parameters, which are dependent o... View full abstract»

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  • A computer algorithm for state table reduction

    Publication Year: 1972, Page(s):513 - 520
    Cited by:  Papers (7)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1031 KB)

    As part of a large research programme on the use of computer aids for logic circuit design, it was required to provide an algorithm for the reduction of sequential circuit state tables (completely or incompletely specified). This paper discusses the theoretical problems of state reduction and demonstrates how a rapid solution may be obtained based on the determination and use of a closure function... View full abstract»

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