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Proceedings of the IRE

Issue 5 • Date May 1959

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Displaying Results 1 - 25 of 56
  • Poles and Zeros

    Publication Year: 1959, Page(s): 629
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    Freely Available from IEEE
  • James R. Killian, Jr.

    Publication Year: 1959, Page(s): 630
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    Freely Available from IEEE
  • Guest Editorial

    Publication Year: 1959, Page(s):631 - 632
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    Freely Available from IEEE
  • Scanning the issue

    Publication Year: 1959, Page(s):633 - 635
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    Freely Available from IEEE
  • The Basis of Our Measuring System

    Publication Year: 1959, Page(s):636 - 643
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3403 KB)

    The measuring system used for scientific work affords a means of making physical measurements with great precision and accuracy. The best measurements can be made of the quantities taken for the basis of the system. A decrease in both accuracy and precision arises in measuring quantities which are related to them in a complicated way. The standards which fix the magnitudes of the units on which th... View full abstract»

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  • The Ampere

    Publication Year: 1959, Page(s):643 - 649
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (5110 KB)

    The purpose of this paper is to supplement the preceding paper by describing in some detail the various measuring procedures and supporting research which must be carried on by a national standardizing laboratory to meet its responsibilities related to a single one of the many units of measurement on which modern science, engineering and industry are based. The example chosen is the ampere, the un... View full abstract»

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  • Progress and Problems in U. S. Army Communications

    Publication Year: 1959, Page(s):650 - 660
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (10253 KB)

    A review is given of communication progress under the cognizance of the U. S. Army Signal Research and Development Laboratory since World War II. The strong dependence on and close cooperation maintained with non-Government institutions is emphasized. Operational and technical areas are discussed and equipment shown to illustrate the present state-of-the-art in meeting conmunication requirements f... View full abstract»

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  • The Engineering of Communication Systems for Low Radio Frequencies

    Publication Year: 1959, Page(s):661 - 680
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (7161 KB)

    The low radio frequencies are of considerable importance in specific radio communication applications. However, little improvement has been made in recent years in methods of engineering low-frequency systems. In this paper the factors that influence the design of a communication system at low radio frequencies are discussed, and a description is given of some experimental work designed to obtain ... View full abstract»

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  • The Development of Radio Traffic Frequency Prediction Techniques for Use at High Latitudes

    Publication Year: 1959, Page(s):681 - 688
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (5472 KB)

    A brief historical review is presented of ionospheric work leading to the development of radio prediction techniques in order to provide a background and to emphasize the fact that all prediction methods are relatively quite "young." A bibliography of Canadian work is given. The merits and defects of some prediction techniques are discussed with particular attention to the Canadian problem in the ... View full abstract»

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  • Tropospheric Scatter System Using Angle Diversity

    Publication Year: 1959, Page(s):688 - 696
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3383 KB)

    This paper proposes an extension of the angle diversity technique as a means towards solution of several problems restricting use of over-the-horizon microwave communications. The paper suggests application of a microwave multibeam system as an attack on the problems of transmitter tube limitations, "medium to aperture" coupling loss, and UHF-band interference. A simple experimnent is described an... View full abstract»

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  • A Critical Analysis of Some Communications Systems Derived from Amplitude Modulation

    Publication Year: 1959, Page(s):697 - 704
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2997 KB)

    For radio operation in the frequency range of 30 mc downward, ordinary amplitude modulation (AM) has been most widely used. In order to overcome certain known deficiencies of AM, variations of AM have been evolved. One of these, single sideband operation with the carrier suppressed at the transmitter (SSB), has proved its superiority over AM in transatlantic operations for nearly twenty-five years... View full abstract»

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  • Radiation Measurements at Radio Frequencies: A Survey of Current Techniques

    Publication Year: 1959, Page(s):705 - 735
    Cited by:  Papers (11)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (17702 KB)

    A survey is given of techniques used in the measurement of radiation fields at radio frequencies. These measurements are divided into three broad classifications dealing with fundamental studies of electromagnetic waves, antenna design, and antenna performance. These classifications in turn include diffraction, scattering, transmission and reflection, current distribution, aperture fields, radiati... View full abstract»

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  • Submarine Communication Antenna Systems

    Publication Year: 1959, Page(s):735 - 739
    Cited by:  Papers (3)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3768 KB)

    Submarine communication antenna systems are divided into three systems: VLF, HF, and UHF. The evolution of each system from World War II to the present is described, and some of the problems associated with the antennas in each frequency band are reviewed. HF transmission line systems and their losses are discussed, and various environmental problems are considered. Specific examples of stacked an... View full abstract»

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  • Models of the Atmospheric Radio Refractive Index

    Publication Year: 1959, Page(s):740 - 755
    Cited by:  Papers (48)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (5376 KB)

    Evaluation of atmospheric refraction effects on UHFVHF radio propagation has long been accomplished with the convenient four-thirds earth concept of Schelling, Burrows, and Ferrell. This method has proven particularly useful in evaluating performance of point-to-point radio communications systems. However, relatively new long-range applications have demanded a model of atmospheric radio refractive... View full abstract»

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  • Airborne Radiometeorological Research

    Publication Year: 1959, Page(s):756 - 761
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3612 KB)

    This paper deals with the Naval Research Laboratory's airborne research in military radar and propagation problems. The military problems include predictions of radar and propagation conditions at specific places and times, and hence, fruitful research must be directed at establishing the geophysical causes of signal behavior. The flying laboratory system for quantitative measurements of ground an... View full abstract»

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  • Sporadic E at VHF in the USA

    Publication Year: 1959, Page(s):762 - 769
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3390 KB)

    An analysis is made of sporadic-E propagation observed on the Cedar Rapids to Sterling path during the four years, 1952-1955. VHF transmissions over this path at frequencies of 27.775 mc and 49.8 mc provided the Es data. At this latitude, the summer months receive the preponderance of sporadic E. Diurnally, sporadic-E occurrence tends to favor the day-time and evening hours with peaks of incidence... View full abstract»

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  • Some Characteristics of Persistent VHF Radiowave Field Strengths Far beyond the Radio Horizon

    Publication Year: 1959, Page(s):769 - 777
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3869 KB)

    The most recent results of a continuing research program devoted to the study of long-distance VHF radiowave propagation are presented. Data obtained from measurements made at 50 and 220 mc on the surface and in the air are given which extend our previous results and clarify some important aspects of tropospheric and ionospheric propagation at extreme distances and heights. View full abstract»

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  • A Lightweight and Self-Contained Airborne Navigational System

    Publication Year: 1959, Page(s):778 - 807
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (10541 KB)

    The paper discusses the design of a self-contained navigational aid for aircraft. There are many techniques and variations upon which such a system may be based. The one chosen for discussion is a hybrid system which combines an inertial north reference, a Doppler navigational radar, and an airspeed indicator. A velocity triangle computer relates these three sources of input data, so that the airs... View full abstract»

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  • The CAA Doppler Omnirange

    Publication Year: 1959, Page(s):808 - 821
    Cited by:  Papers (16)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (7457 KB)

    This paper describes a VHF omnirange, the operation of which is based upon an application of the Doppler effect. Progress in the development of a Doppler VOR is outlined. The Doppler VOR has a measured 7-to-1 improvement with respect to siting effects when compared to the conventional four-loop VHF omnirange. The wave transmitted by the Doppler VOR is horizontally polarized. The unique interchange... View full abstract»

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  • Noise-Modulated Distance Measuring Systems

    Publication Year: 1959, Page(s):821 - 828
    Cited by:  Papers (62)  |  Patents (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2671 KB)

    Distance measuring systems using random noise as the modulating function are described. The distance measurement is accomplished by correlating the modulation on the transmitted and received signals. The spectrum of the modulating function determines the way in which this correlation, and hence system output, depends on distance to a reflecting target. Physical realizability of filters limits the ... View full abstract»

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  • VLF Propagation Measurements for the Radux-Omega Navigation System

    Publication Year: 1959, Page(s):829 - 839
    Cited by:  Papers (16)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3461 KB)

    This paper describes special VLF propagation measurements in connection with a feasibility study of a long range navigation system. Round-trip single-frequency measurement of phase stability was made between Hawaii and San Diego on frequencies from 10.2 kc to 18.2 kc in 1 kc increments. During January 15 to 23, 1958, the standard deviation of phase stability on 12.2 kc was 4 ¿sec daytime and 5 ¿... View full abstract»

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  • In-Service Improvements in Air Traffic Control

    Publication Year: 1959, Page(s):840 - 846
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    This paper covers several of the significant "inservice improvements," including the introduction of simulation study techniques, new displays, and automatic data processing that have been taken to meet the air traffic control requirements. A review of the three basic simulation methods: graphical, dynamic, and fast time is provided together with a description of the dynamic simulation facilities ... View full abstract»

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  • Pulsed Analog Computer for Simulation of Aircraft

    Publication Year: 1959, Page(s):847 - 851
    Cited by:  Papers (3)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1262 KB)

    This article describes the logical design of a pulsed analog-digital computer which could be used to solve the system of nonlinear differential equations normally encountered in the simulation of aircraft. The design calls for a magnetic drum to perform the functions of storing the program and the aerodynamic data required in the computation. Time-shared analog computing elements encompassing the ... View full abstract»

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  • Determination of Satellite Orbits from Radio Tracking Data

    Publication Year: 1959, Page(s):851 - 854
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    A computer program has been developed which permits an approximate determination of a satellite orbit from a minimal amount of tracking data. View full abstract»

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  • Phenomena of Scintillation Noise in Radar-Tracking Systems

    Publication Year: 1959, Page(s):855 - 863
    Cited by:  Papers (18)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3267 KB)

    In 1947, an investigation was begun at the U. S. Naval Research Laboratory to study noise in tracking radars. Of particular interest was the noise which was found to be caused by a target when it is of finite size and complex shape; this suggested a new basis for optimum radar design. With the increasing emphasis on precision in radar guidance in the space and missile age, complete instrumentation... View full abstract»

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Aims & Scope

This Periodical ceased production in 1962. The current retitled publication is Proceedings of the IEEE.

Full Aims & Scope