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Radio and Electronic Engineer

Issue 4 • Date April 1976

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Displaying Results 1 - 11 of 11
  • Electronics in Society

    Publication Year: 1976, Page(s):149 - 150
    IEEE is not the copyright holder of this material | PDF file iconPDF (117 KB)
    Freely Available from IEEE
  • Applications of self-scanned integrated photodiode arrays

    Publication Year: 1976, Page(s):151 - 160
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1693 KB)

    The development of self-scanned photodiode arrays is traced briefly, and a comparison made between their properties and those of the vidicon tube. The theory of their operation is explained, showing how charge integration is used to obtain high responsivity, and the various scanning methods used to read out the signal from linear and two-dimensional arrays are described. The optical and electrical... View full abstract»

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  • The specification and design of filters for amplitude and phase modulated data transmission systems

    Publication Year: 1976, Page(s):161 - 169
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (990 KB)

    A baseband pre-envelope model is used to define the important performance parameters of amplitude, and phase modulation of digital transmission systems as far as the system's filters are concerned. Typical figures are given of these parameters and a filter specification is drawn up. Theoretical characteristics are derived which optimize the performance parameters and form target responses for prac... View full abstract»

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  • The effect of water migration on oscillator stability

    Publication Year: 1976, Page(s):170 - 172
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (355 KB)

    During the development of a stable free-running oscillator an unusual frequency drift phenomena was observed. When investigated, the drift was found to be due to the molecular migration of water to and from the oscillator. Although the drift observed is emphasized by the frequency of oscillation and the temperature ranges involved, it is believed that the findings of this work are applicable to th... View full abstract»

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  • Cellular structures for implementing recursive and non-recursive digital filters

    Publication Year: 1976, Page(s):173 - 181
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (958 KB)

    Some cellular arrays for implementing digital filters as iterative assemblies of equal modules are introduced. The main advantage of these structures, which can be sequential or combinational, is that there is a large overlapping between the execution of the multiplications required to compute an output sample. In this way the time for a multiplication gives only an additive contribution to the to... View full abstract»

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  • Helicopter rotor blade radar

    Publication Year: 1976
    IEEE is not the copyright holder of this material | PDF file iconPDF (154 KB)
    Freely Available from IEEE
  • Digital television trials with compact transmission equipment

    Publication Year: 1976
    IEEE is not the copyright holder of this material | PDF file iconPDF (154 KB)
    Freely Available from IEEE
  • Crystal band-pass lattice filters with equal ripple pass bands and arbitrary stop bands

    Publication Year: 1976, Page(s):183 - 197
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1228 KB)

    A design procedure is given for crystal lattice filters with the attenuation poles (frequencies of infinite attenuation) set to any value. Simple formulae are then provided in terms of the specification data. The designer selects the number of lattices and the distribution of attenuation poles in each lattice. This flexibility, which is not possible for designs resulting from modern insertion loss... View full abstract»

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  • Tropospheric telephone and data links to north sea platforms

    Publication Year: 1976, Page(s):200 - 201
    IEEE is not the copyright holder of this material | PDF file iconPDF (350 KB)
    Freely Available from IEEE
  • Police Mobile Communications Study

    Publication Year: 1976
    IEEE is not the copyright holder of this material | PDF file iconPDF (211 KB)
    Freely Available from IEEE
  • An Integrated Channel Selector for V.H.F/U.H.F.

    Publication Year: 1976
    IEEE is not the copyright holder of this material | PDF file iconPDF (466 KB)
    Freely Available from IEEE