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Radio and Electronic Engineer

Issue 2 • Date February 1971

 This issue contains several parts.Go to:  Part S 

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Displaying Results 1 - 10 of 10
  • More value by design

    Publication Year: 1971
    Save to Project icon | PDF file iconPDF (128 KB)  
    Freely Available from IEEE
  • Institution notices

    Publication Year: 1971
    Save to Project icon | PDF file iconPDF (160 KB)  
    Freely Available from IEEE
  • Frequency domain approach to automatic testing of control systems

    Publication Year: 1971 , Page(s): 51 - 60
    Cited by:  Papers (7)
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (1245 KB)  

    The system user must be satisfied that frequency domain data adequately measures the quality of his system in all the performance aspects of interest. This involves the interpretation of transfer functions other than system output/input, and the acquisition of data over a wide frequency band ranging from a few percent of bandwidth to several multiples of bandwidth, the latter for the detection of ... View full abstract»

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  • Drift and low frequency noise

    Publication Year: 1971 , Page(s): 61 - 64
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (505 KB)  

    To compare errors arising in a measuring instrument from drift and low frequency (1/f) noise, the behaviour of the latter in the time domain is calculated. The standard deviation is expressed in terms of the cut-off frequency and integration time of the instrument, and the frequency index of the noise, which can be measured at audio frequencies. Optimum values of these quantities are discussed. Th... View full abstract»

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  • The synthesis and analysis of active RC ladder networks using the recurrent-continuant method

    Publication Year: 1971 , Page(s): 65 - 72
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (410 KB)  

    Given the polynomial in s which describes the reciprocal of the transfer function of the circuit to be synthesized, the recurrent determinant may be determined. The continuant determinant is evaluated by a logical sequence of operations on the recurrent determinant. The values of the elements of the continuant determine either the gains of the amplifiers in the circuit when the component values ar... View full abstract»

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  • A computer controlled test system for digital equipment

    Publication Year: 1971 , Page(s): 73 - 76
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (435 KB)  

    This paper describes the requirements of digital equipment testing and describes a test system, controlled by a digital computer, capable of testing a wide variety of digital equipment. View full abstract»

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  • Efficiency of the Two-Frequency M.T.I. System

    Publication Year: 1971 , Page(s): 77 - 80
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (480 KB)  

    Efficiency of the two-frequency moving target indication (m.t.i.) radar system is considered under the assumption that the echo and clutter signals are stochastic processes, and clutter spectrum is Doppler-shifted. Single and double cancellation circuits are investigated. The analysis indicates a fairly good tolerance of the system efficiency to clutter drift, especially when double cancellation i... View full abstract»

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  • The relationships and measurements of cross-modulation and intennodulation on combined signal working C.C.I.R. system a v.h.f. band III relay systems

    Publication Year: 1971 , Page(s): 81 - 90
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (2041 KB)  

    In order to extend v.h.f. coverage in Great Britain to areas of relatively poor reception, the Independent Television Authority has recently commissioned a number of hybrid solid-state/valved combined signal working relay stations. Whilst this has led to a high level of performance and reliability, the use of combined signal working has introduced problems peculiar to this system in so far as the ... View full abstract»

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  • Ultrasonic imaging in solids

    Publication Year: 1971 , Page(s): 91 - 93
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (434 KB)  

    An experiment is described in which a focused image of objects within a solid material was obtained from signals received at a transducer array on the material surface. Image construction from these data was done by digital computer. The results conform to the theoretical resolution obtainable under the prevailing physical constraints. View full abstract»

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  • Intelsat IV Satellite - European participation

    Publication Year: 1971 , Page(s): 94 - 95
    Save to Project icon | PDF file iconPDF (473 KB)  
    Freely Available from IEEE