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Proceedings of the IEE - Part B: Radio and Electronic Engineering

Issue 9  Part S • Date March 1958

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Displaying Results 1 - 25 of 29
  • Opening address

    Publication Year: 1958, Page(s):193 - 195
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  • A review of radio aids to aeronautical and marine navigation

    Publication Year: 1958, Page(s):196 - 212
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (2933 KB)

    The paper is an introduction to the Convention on Radio Aids to Aeronautical and Marine Navigation. The parts of the radio-frequency spectrum which are in use for navigational purposes extend from about 10kc/s to 40Gc/s. The basic factors which apply to all radio-navigational technique are the wave-path, measurement of time interval, the wave propagation velocity, base-line distance and aerial ape... View full abstract»

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  • Discussion at the Opening Session of the Convention, 27th March, 1958

    Publication Year: 1958, Page(s):212 - 214
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  • The author's reply to the discussion at the Opening Session of the Convention

    Publication Year: 1958
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  • Survey of long-range radio navigation aids

    Publication Year: 1958, Page(s):216 - 224
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1574 KB)

    The paper indicates the progress in development and usage of long-range radio aids to navigation in the last decade, and is almost exclusively concerned with air navigation. Some indication is given of the changing operational requirements, and of the extent to which the choice of future aids is likely to be affected by them and by economic and international considerations. The main features and a... View full abstract»

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  • The Decca Navigator system for ship and aircraft use

    Publication Year: 1958, Page(s):225 - 234
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1985 KB)

    The paper discusses the present use of the Decca Navigator radio position-fixing system as a marine and aircraft navigational aid. The permanent navigational service currently comprises 12 chains and some 4000 ship and aircraft installations; in addition, mobile chains are used for surveying and exploration. The absence of modulation permits close spacing of the chain frequencies. The receivers co... View full abstract»

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  • Doppler navigation

    Publication Year: 1958, Page(s):235 - 247
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1889 KB)

    This paper describes a self-contained radio navigation aid for aircraft which works by virtue of the Doppler principle. Ground speed and drift angle are determined by measuring the Doppler shifts that occur when signals transmitted from a moving aircraft are reflected back from the ground along two or more beams. Ground speed with an error of less than 0.2% and drift angle with an error of less th... View full abstract»

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  • An airborne Doppler navigation equipment

    Publication Year: 1958, Page(s):248 - 257
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1535 KB)

    The paper gives an account of Airborne Radio Installation 5851, the first Doppler navigation equipment to be used by the Royal Air Force. The way in which the requirements of the specification are met is described, and an account is given of the special features which have been incorporated in the design. The performance and reliability under Service conditions are discussed. View full abstract»

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  • Low-power c.w. Doppler navigation equipment

    Publication Year: 1958, Page(s):258 - 265
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1198 KB)

    A low-power c.w. Doppler navigation aid is described which has been designed for use in maritime reconnaissance aircraft. Low-voltage klystrons combined with high-gain fixed aerials provide adequate system gain for operating over all surfaces except the calmest water. Display is in the form of drum counters showing distance flown along heading and distance drifted at right angles to heading, port ... View full abstract»

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  • The combination of inertial navigation and radio aids

    Publication Year: 1958, Page(s):266 - 276
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1574 KB)

    By measuring forces and moments that constrain a body of known inertial characteristics to move with a vehicle it is possible to determine acceleration in a set of specified axes and hence change in velocity and position. The principles of this method of navigation, known as inertial navigation, are outlined, and it is shown that the many possibilities of a practical realization can all be express... View full abstract»

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  • Discussion on "Medium- and long-range aids" at the Convention, 27th March, 1958

    Publication Year: 1958, Page(s):277 - 283
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  • The authors' replies to the discussion on "Medium- and long-range aids"

    Publication Year: 1958, Page(s):282 - 283
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  • General aspects of short-range rho-theta systems

    Publication Year: 1958, Page(s):284 - 297
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1703 KB)

    The paper starts with a recapitulation in simple terms of the principal processes used in rho-theta systems, namely azimuth transmission, distance measurement and direction finding. An outline is then given of the TACAN system, illustrating the application of the processes in an established system of particular present interest. Further illustrations are taken from V.O.R. technique with particular... View full abstract»

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  • TACAN: a navigation system for aircraft

    Publication Year: 1958, Page(s):298 - 306
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1321 KB)

    TACAN is the latest form of rho-theta navigation system for aircraft and embodies certain novel features. The system characteristics are briefly described and a short history of its beginning and development are given. Basic principles of operation are followed by a description of the apparatus required, and the advantages of the system for bad site operation is discussed. Additional facilities ar... View full abstract»

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  • Current direction-finding practice

    Publication Year: 1958, Page(s):307 - 316
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1855 KB)

    Direction-finding practice in Britain is reviewed over the frequency band 10kc/s¿400Mc/s; the survey is restricted to land-based systems. Current applications are outlined, the factors affecting accuracy are discussed with particular reference to those concerned with propagation, and equipment is described. The applications are numerous, ranging from location of thunderstorms at the lowest freque... View full abstract»

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  • The practical evolution of the commutated-aerial direction-finding system

    Publication Year: 1958, Page(s):317 - 325
    Cited by:  Papers (3)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1637 KB)

    The paper sets out to show how the more fundamental problems encountered in the development of the commutated-aerial direction-finding system have been solved during a long-term development plan. Reasons are given for the choice of a circular array of aerials, which are commutated sequentially to the receiving equipment. It is shown how such an arrangement permits great economy in the number of ae... View full abstract»

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  • Discussion on "Range and bearing systems" at the Convention, 28th March, 1958

    Publication Year: 1958, Page(s):326 - 330
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  • The authors' replies to the discussion on "Range and bearing systems"

    Publication Year: 1958, Page(s):330 - 332
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  • A survey of approach and landing aids

    Publication Year: 1958, Page(s):333 - 343
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1674 KB)

    Various all-weather approach aids for aircraft are reviewed briefly, with reference more to the facilities they provide and their operational limitations than to their detailed design and electronics. Certain aspects of the British Instrument Landing System are discussed and the principles and advantages of automatic I.L.S, approaches in bad weather are outlined. It is shown that there is little h... View full abstract»

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  • Precision approach radar

    Publication Year: 1958, Page(s):344 - 350
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1175 KB)

    The paper discusses the operational and technical requirements for a precision-approach radar (P.A.R.) equipment. These requirements may be met by a variety of different practical designs. One such design now in production is described in detail and the principles governing the choice of design are explained. View full abstract»

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  • A survey of harbour approach aids

    Publication Year: 1958, Page(s):351 - 357
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1071 KB)

    The paper describes the various systems of harbour-approach aid which are either in operation or in development. The former consist of radar reflectors, surveillance radars and microwave course beacons, and the latter include radar beacons, transmission of surveillance pictures to ships and radar identification. View full abstract»

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  • The application of radio altimeters to aircraft approach and landing

    Publication Year: 1958, Page(s):358 - 364
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1132 KB)

    A brief history of the development and application of pluse and frequency-modulated radio altimeters is given, and a few of the basic principles are mentioned. The paper then discribes in some detail the analysis of the performance of an equipment at very low altitudes and shows how this performance can be improved to make it applicable to the control of landing aircraft. Recorder plots of height ... View full abstract»

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  • Discussion on 'Airfield and harbour approach' at the Convention, 28th March, 1958

    Publication Year: 1958, Page(s):365 - 368
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  • The authors' replies to the discussion on "Airfield and harbour approach"

    Publication Year: 1958, Page(s):368 - 369
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  • Advances in ground radar for civil aviation

    Publication Year: 1958, Page(s):370 - 379
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1852 KB)

    The need for ground radar for civil aviation is discussed, and also its growth during the last ten years, first in the terminal areas, and more recently to assist control on the airways. Typical radars designed for civil use are next described and possible ways of meeting future requirements. Advances in techniques are then mentioned, and it is shown that the problems of radar data generation and ... View full abstract»

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