By Topic

Radio and Electronic Engineer

Issue 1 • Date January 1983

Filter Results

Displaying Results 1 - 9 of 9
  • Direct broadcasting by satellite technical transmission standards

    Publication Year: 1983, Page(s):1 - 2
    IEEE is not the copyright holder of this material | PDF file iconPDF (350 KB)
    Freely Available from IEEE
  • Letters to the Editor: Electric forces

    Publication Year: 1983
    IEEE is not the copyright holder of this material | PDF file iconPDF (185 KB)
    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Viewdata decoder development

    Publication Year: 1983
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (151 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.
  • Characterization of the dynamical response of receivers to fading

    Publication Year: 1983, Page(s):13 - 20
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (2265 KB)

    The general behaviour of radio receivers with feedback automatic gain control is examined for a range of fading conditions. Mathematical modelling of the a.g.c. system as a non-linear servo-loop goes part of the way to characterizing the dynamical response. It is shown that the characteristics of practical aircraft receivers for u.h.f. voice communications are too complex for representation by sim... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A submersible fluorometer for the detection of chlorophyll

    Publication Year: 1983, Page(s):21 - 24
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (805 KB)

    An in situ fluorometer capable of operation to 400 m is described. A pulsed xenon light source ensures low power consumption (6 W) and a high signal-to-noise ratio, giving a phytoplankton chlorophyll a detection limit of 0.1 mg/m3. Operation at 8 knots in an undulator enables vertical profiles to be determined with a resolution of about 1 m. By changing the optical filters it is possible to detect... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Book review: Electromagnetic Compatibility in Radio Engineering

    Publication Year: 1983
    IEEE is not the copyright holder of this material | PDF file iconPDF (165 KB)
    Freely Available from IEEE
  • Application of a set of learning curve models to repetitive tasks

    Publication Year: 1983, Page(s):25 - 32
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1164 KB)

    As part of a research project into the cost effectiveness of training, various experiments were held in telephone exchanges in the UK. Data from those experiments and from other sources in the literature were used to compare the efficiency of a selection of models of learning. The method of comparison was based on an extension of an iterative two-parameter curve-fitting algorithm which used a Tayl... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Studies of the Adcock direction finder in terms of phase-mode excitations around circular arrays

    Publication Year: 1983, Page(s):33 - 38
    Cited by:  Papers (7)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1131 KB)

    A new analysis of the Adcock direction finder is presented in terms of phase-mode excitations associated with circular arrays. This leads to a convenient form of processing for such a d.f. system based upon a circular array/Butler matrix configuration which employs a direct phase-measuring detector for bearing measurements. The principal sources of error limiting the physical spacing of elements w... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A microprocessor realization of non-recursive digital filters using delta-sigma sequences

    Publication Year: 1983, Page(s):39 - 43
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (640 KB)

    The use of delta-sigma modulation for the realization of nonrecursive digital filters is described. The proposed method exploits the simplicity of the delta-sigma modulator for analogue to digital conversion. This method permits the use of a microprocessor for the realization of the filters without using an external fast multiplier. Moreover the experimental results have shown that the use of an 8... View full abstract»

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