By Topic

Radio and Electronic Engineer

Issue 8 • Date August 1973

Filter Results

Displaying Results 1 - 8 of 8
  • Hybrid microelectronic

    Publication Year: 1973
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (140 KB)

    First Page of the Article
    View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Speech scrambling by the matrixing of amplitude samples

    Publication Year: 1973, Page(s):459 - 470
    Cited by:  Papers (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (2141 KB)

    If a speech signal is scrambled by varying the order of transmission of its amplitude samples, a signal of very low intelligibility can be produced. The basic defect in the system is that there is always some of the original speech spectrum left in the scrambled signal, and this is the source of the residual intelligibility. This paper shows how this original signal component may be removed comple... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • An active filter for use in an a.c. carrier control system

    Publication Year: 1973, Page(s):471 - 473
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (584 KB)

    The design of an active filter, suitable for use as the stabilizing element in an a.c. control system, is discussed, The modulating frequency characteristics presented show the relative insensitivity of the filter to tolerance, temperature and carrier drift effects. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A goniometer for use with high-frequency circularly disposed aerial arrays

    Publication Year: 1973, Page(s):475 - 484
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (2902 KB)

    The paper describes the development of a high-frequency spinning goniometer for use as a direction finding unit on a wide-aperture circularly disposed aerial array. The factors governing the design of the goniometer are presented and three different prototypes are discussed, the third being a miniaturized version. Unlike previous goniometer designs, the beam forming network consists of delay lines... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The assessment of connector reliability

    Publication Year: 1973, Page(s):486 - 489
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (617 KB)

    The simple `U¿ curve concept used to express the mean time between failures (m.t.b.f.) of components as a means of estimating the m.t.b.f. of equipment is based upon a number of simplifying assumptions which are often forgotten when applying the simple rules which result. While the simple rules adopted are sufficiently accurate to give a good working value for many components, they are unrealisti... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Use of switching circuits as redundant multiplier elements in canonic digital networks

    Publication Year: 1973, Page(s):490 - 496
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (723 KB)

    Switching circuits are used to realize elementary multipliers whose coefficients are restricted to integer powers of 2. Modifications are given to accommodate signed magnitude, 1's complement and 2's complement binary codes. The addition of a single elementary multiplier to a canonic digital network and its interchange with each conventional multiplier in turn enables the multiplier coefficients t... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • X-ray image intensifier systems

    Publication Year: 1973, Page(s):497 - 503
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (731 KB)

    By using a logic simulator, the designers of MU5, a large computer containing over 60,000 logic gates, have been able to commission their designs successfully prior to manufacture. A user's view of the simulator is given. This includes the structure of the simulator, the mechanisms for specifying and testing the networks and examples of the performance monitoring available. Typical results achieve... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • X-ray image intensifier systems

    Publication Year: 1973, Page(s):504 - 520
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (327 KB)

    First Page of the Article
    View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.