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IRE Transactions on Communications Systems

Issue 4 • Date December 1959

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Displaying Results 1 - 16 of 16
  • [Front cover and table of contents]

    Publication Year: 1959, Page(s): 0
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  • The design of communication systems

    Publication Year: 1959, Page(s):227 - 229
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  • Comparative Evaluation of Communications Transmission Media

    Publication Year: 1959, Page(s):230 - 231
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (217 KB)

    The selection of communications transmission media for any specified operation is neither a purely technical problem nor a purely economic one, but a complex combination of these two factors. To minimize work involved in evaluating all the possible choices, a first-order approximation method is provided to limit the number of specific transmission media which must be considered in any specific app... View full abstract»

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  • Design Considerations for Space Communication

    Publication Year: 1959, Page(s):232 - 240
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1225 KB)

    With the advent of Russian and American artificial earth satellites, the use of such vehicles for communication purposes has been the subject of considerable study both by military and commercial organizations in the communications field. The purpose of this paper is to delineate the problems involved in space communication, the assumptions that must be made and the technical limitations which det... View full abstract»

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  • Development Trends in USAF Global Communications Systems

    Publication Year: 1959, Page(s):241 - 248
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (861 KB)

    This paper briefly summarizes one initial development approach for the 1962-1965 USAF Global Communications Systems. A brief review is given of some of the early communications systems work and the present design philosophy for the 600-voice bandwidth channel, 6000-mile trunk system is discussed. Specific requirements of the ground-based Air Force common-user system are listed and developments int... View full abstract»

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  • An Underwater Communication System

    Publication Year: 1959, Page(s):249 - 251
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (371 KB)

    Communications between submerged submarines and surface craft require energy to be propagated through sea water. The only practical method for transmitting this energy is by acoustic means. Both FM and AM transmission systems have been used, but for long-range communication, a single-sideband suppressed-carrier transmission system is the only effective way of propagating sound energy. The requirem... View full abstract»

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  • Wide-Band Facsimile Transmission Over a 900-Mile Path Utilizing Meteor Ionization

    Publication Year: 1959, Page(s):252 - 256
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (632 KB)

    Preliminary tests of facsimile transmission over a 910-mile path have been made at 40 mc by means of intermittent meteor ionization. Printed matter was scanned at a rate of 2 frames per second, with a resolution of 67 elements per inch. An all-electronic facsimile system recorded a picture when the received signal rose above a preset threshold. Tests were conducted employing bandwidths up to 110 k... View full abstract»

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  • A Very High-Speed Facsimile Recorder

    Publication Year: 1959, Page(s):257 - 263
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1354 KB)

    An operating facsimile system is described which is capable of transmitting black and white graphic information at the rate of 24 inches of copy feed per second. The system uses conventional line-by-line sequential scanning at the transmitter and a multistylus recorder with 100 lines per inch resolution at the receiver. The electrolytic recording medium employed is characterized by a relatively lo... View full abstract»

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  • The NBS Meteor Burst Communication System

    Publication Year: 1959, Page(s):263 - 271
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (976 KB)

    This project was undertaken in 1955 to investigate the properties of the intermittent reception of VHF signals over long distances by meteoric propagation and their communication usefulness. To accomplish this, a complete duplex teletype system operating at about 50 mc was constructed, and results are reported from tests made over a 1277-km east-west path. Comparisons are made of burst transmissio... View full abstract»

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  • White Alice System - Design and Performance

    Publication Year: 1959, Page(s):272 - 277
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (713 KB)

    White Alice is an extensive communications network covering the entire state of Alaska. It provides essential defense communications as well as service for other government agencies and civilian commercial service. Both telephone and telegraph channels are provided with capacity for future growth. The Western Electric Company, as prime contractor for the USAF AMC, undertook the engineering, procur... View full abstract»

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  • Installation and Operation Aspects of a Private Television Microwave System

    Publication Year: 1959, Page(s):278 - 284
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1080 KB)

    The problems of installation, operation and maintenance of a 165-mile, six-hop, private, intercity television relay system are reviewed. Careful planning of the path to be used is required. Equipment, its housing, power and frequency chosen for this service require careful evaluation. Emergency power supplies are required. Numerous modifications to commercial equipments were found necessary. The p... View full abstract»

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  • Practical Considerations in the Design of Minimum Bandwidth Digital Frequency Modulation Systems Using Gaussian Filtering

    Publication Year: 1959, Page(s):284 - 290
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (750 KB)

    The characteristics of a digital frequency modulation system are reviewed. The Gaussian frequency response is specified and optimum filters for transmitter and receiver (both predetection and postdetection) are developed. The relationship between peak deviation and system threshold is explored and an optimum deviation established. The location of the Gaussian filters in the system is discussed. It... View full abstract»

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  • A Study of the Technical and Economic Feasibility for Tropospheric Scatter Circuits in Primary Toll Networks of Underdeveloped Countries

    Publication Year: 1959, Page(s):290 - 295
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (633 KB)

    The inherent capabilities of the tropospheric scatter circuit have emphasized the need for careful economic and technical evaluation. It is suggested that this should be carried out in two phases. The first is a broad study which determines the essential system parameters for which detailed analysis is necessary. The second phase is concerned with this detail. Outlines are given relevant to the pr... View full abstract»

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  • 50-kw Antenna Switching System

    Publication Year: 1959, Page(s):295 - 301
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2002 KB)

    There are many HF radio installations today that illustrate the need for an improved antenna switching technique. Today there is a growing requirement to connect rapidly any one of several 50-kw transmitters to any one of many antennas. An antenna switching system must be broad-band, convenient to use, fast, safe for operating personnel, and free of appreciable impedance discontinuities. This pape... View full abstract»

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  • The Effects of Low-Noise Techniques on Tropospheric Scatter Communications

    Publication Year: 1959, Page(s):302 - 306
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (464 KB)

    This paper defines the expected benefits to be derived from the use of low-noise receiver techniques when applied to tropospheric scatter systems in the 1000 to 2000-mc range. Calculations were made of the expected antenna noise temperatures for "smooth" and "rough" ground locations. These data, plus the known and anticipated performance of various low-noise techniques, permitted the calculation o... View full abstract»

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  • Contributors and back cover

    Publication Year: 1959, Page(s): 0
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Aims & Scope

This Transactions ceased publication in 1962. The current retitled publication is  IEEE Transactions on Communications.

Full Aims & Scope