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Radio and Electronic Engineer

Issue 4 • Date April 1972

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Displaying Results 1 - 7 of 7
  • A common heritage

    Publication Year: 1972
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (134 KB)

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  • Infra-red atmospheric temperature sounding from satellites

    Publication Year: 1972, Page(s):155 - 162
    Cited by:  Papers (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1064 KB)

    On 8th April 1970 the Selective Chopper Radiometer (S.C.R.) was launched into a polar orbit on the Nimbus 4 meteorological spacecraft. Since that date the instrument has produced nearly four million temperature profiles of the Earth's atmosphere, from the ground up to 50 km, in most cases to an accuracy of 1 or 2K. This has therefore made it possible for the first time to study the temperature par... View full abstract»

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  • The principles of pulse signal recovery from gravitational antennas

    Publication Year: 1972, Page(s):163 - 171
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1092 KB)

    The general engineering problem of pulse signal recovery from a reactive (i.e. energy-storing) transducer is considered. It is shown that by using active filters (i.e. filters which are not subject to the constraints imposed upon passive systems by the second law of thermodynamics), pulses of energy less than k¿/2 (where ¿ is the absolute temperature) are detectable. The arguments are then exten... View full abstract»

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  • An analysis of transport delay simulation methods

    Publication Year: 1972, Page(s):172 - 178
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (745 KB)

    The inherent limitations of existing lumped parameter networks and electro-mechanical systems for simulating a continuously variable transport delay are shown. Electronic sampled-data storage schemes overcome these difficulties and result in a much higher performance transport delay unit. Cost effectiveness is shown to be markedly enhanced by linear interpolation and m.o.s. shift-register storage ... View full abstract»

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  • A transport delay simulator using digital techniques

    Publication Year: 1972, Page(s):179 - 184
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (891 KB)

    This transport delay simualtor was designed to extend the facilities of an analogue computer when used, in particular, for plant simulation purposes. An abridged performance specification is given in the Appendix which shows that this delay simulator has compatible performance with a wide range of modern analogue simulator equipment. Its principle of operation, chosen after consideration of severa... View full abstract»

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  • Fault investigation of some silicon integrated circuits

    Publication Year: 1972, Page(s):185 - 194
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (2317 KB)

    This paper reviews work in the field of design and fault investigation of special integrated circuits intended for use in military radio equipment. The circuits considered were designed, developed and master layouts prepared by the author and his colleagues. Fabrication was carried out by industry. The fault investigation was mainly centred around the spread of design parameters and the faults ass... View full abstract»

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  • Terrestrial microwave radio relay system development at frequencies above 10 Ghz

    Publication Year: 1972, Page(s):195 - 200
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (3382 KB)

    To assist in meeting the explosive growth expected in telecommunications in the next twenty years the Post Office and the Science Research Council have begun what is probably the largest microwave-propagation study yet to be mounted anywhere. This project could have a major influence in opening up the 10¿100 GHz range of the radio spectrum (wavelength down to 3 mm) to new microwave telecommunicat... View full abstract»

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