By Topic

Radio and Electronic Engineer

Issue 9 • Date September 1980

Filter Results

Displaying Results 1 - 8 of 8
  • The present status of surround sound reproduction

    Publication Year: 1980 , Page(s): 427 - 428
    Save to Project icon | PDF file iconPDF (207 KB)  
    Freely Available from IEEE
  • Some features of a new colour television receiver

    Publication Year: 1980 , Page(s): 430 - 431
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (467 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.
  • Knife cleaning machines to computer systems

    Publication Year: 1980 , Page(s): 432 - 437
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (904 KB)  

    The development and present day capability of the Kent organization are traced from the early days of a Victorian entrepreneur who had the vision to realize the potential of flow measurement in industrial and domestic fields, to the present international network of companies with a product range extending from inexpensive mechanical water meters to computerized process control systems using the latest technologies. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Common channel multitransmitter data systems

    Publication Year: 1980 , Page(s): 439 - 446
    Cited by:  Papers (3)
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (822 KB)  

    The error performance of multi-transmitter data systems is described for mobile and stationary users in overlap areas, as a function of carrier frequency and modulation timing difference. Plots of bit error rate and error distribution are given, and the conclusion is reached that performance is comparable to single transmitter systems at the same signal level. The constraints on the choice of data modulation are discussed View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Man-machine interaction in aerospace control systems

    Publication Year: 1980 , Page(s): 447 - 458
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (1326 KB)  

    The Multi-Role Combat Aircraft Tornado is probably the most spectacular example to date of a complex man-machine system in which design and manufacture are widely dispersed. Even sub-assemblies of this system are extremely complex relative to the technology of just a few years ago. This makes life extremely difficult for an engineer involved in the procurement of the sub-assembly, especially as the overall objective can soon be submerged in a mass of detail. Starting with a review of desirable dynamic properties of the machine, as seen by the man, typical human operator transfer functions which have found use in closed-loop control system design are presented. Some ways in which microelectronics can reduce pilot work load are then discussed with the object of conveying to the design engineer some of the reasoning behind the performance specification he is trying to meet. Examples include helicopter stability augmentation systems and spacecraft terminal phase control. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • An overview of contemporary 'portable' digital a.t.e. system architectures

    Publication Year: 1980 , Page(s): 459 - 466
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (808 KB)  

    The evolution of the `portable¿ or `benchtop¿ digital tester is briefly discussed in this paper in terms of the primary `drivers¿ which lead to its development. The analysis of three current `representative¿ portable digital a.t.e. system architectures is then provided and the impact each has on the six major functions common to any a.t.e. system design is briefly discussed. The paper also addresses the impact of the various architectures as they relate to the test program generation process. The paper then brieflydeals with the issue as to where digital benchtop/portable architectures appear to be headed and architectural improvements needed if the benchtop tester market is to realize its potential. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Recording tape properties and digital recording system performance

    Publication Year: 1980 , Page(s): 467 - 473
    Cited by:  Papers (1)
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (507 KB)  

    The output voltage obtained from a recording tape used in a high density digital application has been shown to be characterized by simple parameters. These parameters have been investigated and predicted to contribute to the signal-to-noise ratio expected from the tape and consequently the error rate obtained from a recording system using it. Measurements on a recording system gave confirmation of the basic ideas behind these predictions. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Some characteristics of a leaky feeder in a tunnel

    Publication Year: 1980 , Page(s): 474 - 478
    Cited by:  Papers (1)
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (473 KB)  

    Details are given of how magnetic field strength varies throughout a short section of a 1500 m long tunnel fed by a leaky feeder. Both phase and amplitude are examined. A second series of measurements examines in detail the phase variation along a single line down the tunnel over a distance of 500 m. The results enable judgments to be made about the potentiality for postion fixing in a tunnel using phase information. View full abstract»

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