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Electronics & Communication Engineering Journal

Issue 3 • Date June 1990

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Displaying Results 1 - 5 of 5
  • The ultimate intelligent network?

    Publication Year: 1990, Page(s):88 - 94
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (594 KB)

    An 'intelligent' telecommunications network is a network that is capable of providing flexible control of its services and capabilities to both network operator and network user. The evolution to intelligent telecommunications networks began some thirty years ago with the introduction of stored programme control exchanges into the public switched network. Since then the introduction of digital swi... View full abstract»

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  • Electronic tracking systems for space communications

    Publication Year: 1990, Page(s):95 - 101
    Cited by:  Patents (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (618 KB)

    Since the first television pictures were received from Telstar by aerial 1 at Goonhilly Down in Cornwall, commercial operation of satellite systems has dictated that the earth-space link must be maintained as consistently as possible. Any break in transmission or lowering of quality results in huge losses for the operator and as a result the performance of the antenna tracking system has received ... View full abstract»

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  • The DTI-industry sponsored Silicon Architectures Research Initiative

    Publication Year: 1990, Page(s):102 - 108
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (630 KB)

    A significant national programme on the development of advanced software for VLSI system design is reported. The Silicon Architectures Research Initiative (SARI) is supported by selected UK electronics companies as well as the UK Department of Trade & Industry (DTI). It has resulted in the design and development of an interactive software suite for optimising a system implementation in VLSI circui... View full abstract»

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  • New video coding standard for the 1990s

    Publication Year: 1990, Page(s):119 - 124
    Cited by:  Patents (6)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (617 KB)

    The growth of a conversational audio-visual service such as videoconferencing depends on an ability to provide a complete system at a price the customer can afford. Video compression technology can play a significant role by drastically reducing transmission costs. The paper outlines progress in establishing a new standard, H.261, for video coding bit rates between 64 kbit/s and 2 Mbit/s.<> View full abstract»

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  • Passive intermodulation interference in communication systems

    Publication Year: 1990, Page(s):109 - 118
    Cited by:  Papers (15)  |  Patents (4)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (624 KB)

    In multifrequency communications environments, such as land mobile radio sites, satellite earth stations, ships and surveillance aircraft, passive intermodulation products (PIMP) generated by nonlinear materials and metallic contacts can cause serious radio interference. This problem is well known and a wide range of coaxial cables, connectors and materials have been investigated. The paper gives ... View full abstract»

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