By Topic

IEEE Transactions on Aerospace and Electronic Systems

Issue 5 • Sept. 1979

Filter Results

Displaying Results 1 - 25 of 27
  • Table of contents

    Publication Year: 1979, Page(s): c1
    Request permission for commercial reuse | PDF file iconPDF (824 KB)
    Freely Available from IEEE
  • IEEE Aerospace and Electronic Systems Society

    Publication Year: 1979, Page(s):c2 - 752b
    Request permission for commercial reuse | PDF file iconPDF (1055 KB)
    Freely Available from IEEE
  • From the Editors

    Publication Year: 1979, Page(s): 593
    Request permission for commercial reuse | PDF file iconPDF (32 KB)
    Freely Available from IEEE
  • Environment and Radar Operation Simulator

    Publication Year: 1979, Page(s):594 - 599
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2980 KB)

    The environment and radar operation simulator (EROS) is a hardware system whose function is to produce realistic synthetic radar backscatter, incorporating both target and clutter. The simulator is electrically connected to a subject radar and responds in real time to the radar's antenna scan angle by producing the correct composite video signal. View full abstract»

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

    Publication Year: 1979, Page(s): 600
    Request permission for commercial reuse | PDF file iconPDF (108 KB)
    Freely Available from IEEE
  • A Distributed System Adaptive Control Strategy

    Publication Year: 1979, Page(s):601 - 612
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2447 KB)

    One attitude control device being studied for large spacecraft consists of two counter-rotating rings, each designated as an annular momentum control device (AMCD), that are attached to a spacecraft using several magnetic bearings distributed along the circumference of the rings. For large spacecraft large rings are desirable. Unfortunately, for large rings flexibility is appreciable and it become... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Spectrum Width Estimtes for Weather Echoes

    Publication Year: 1979, Page(s):613 - 619
    Cited by:  Papers (23)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1482 KB)

    Doppler spectrum width relates to wind shear and turbulence and thus is an important parameter which characterizes severe weather phenomena. The need to scan large volumes of space quickly and to obtain real-time estimates introduces stringent requirements on the signal processing. The Fourier transform and the autocovariance methods are candidate techniques. In particular, the autocovariance esti... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Error Analysis of an Algorithm for Magnetic Compensation of Aircraft

    Publication Year: 1979, Page(s):620 - 626
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1655 KB)

    The Tolles and Lawson equations were programmed on the IBM 370-65 computer. These equations predict the magnetic signals which are generated by the permanent moments, the induced moments and the eddy-current terms of an aircraft as it maneuvers in the Earth's magnetic field. The least mean squared (LMS) solution of these equations, which was developed for the microprocessor compensation program, w... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Input-Filter Design for Switching Regulators

    Publication Year: 1979, Page(s):627 - 634
    Cited by:  Papers (37)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1790 KB)

    The interaction between the input filter and the control loop of switching regulators often results in detrimental effects, such as loop instability, transient response, and audio-signal-rejection rate, etc. A small-signal average model is derived to investigate these effects. Design constraints of an input-filter and switching-regulator system are formulated. An optimum low-pass and light-weight ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Design and Performance of an Adaptive Kalman Receiver for Synchronous Data Transmission

    Publication Year: 1979, Page(s):635 - 648
    Cited by:  Papers (8)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2895 KB)

    A class of multilevel linear-modulation data-transmission systems, over unknown, slowly time-varying, and bandlimited channels is considered. It is shown how sequence estimation in the presence of Gaussian noise and intersymbol interference can be carried out by means of a discrete Kalman estimator. Moreover, the receiver can be provided with data-aided adaptive loops for performing channel identi... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Early Shipboard Search Radars of the U. S. Navy

    Publication Year: 1979, Page(s):649 - 659
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1960 KB)

    Evolutionary charts and brief descriptive notes are presented on over one hundred types of shipboard search radars developed in the United States between 1936 and 1970. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Error Analysis for Relay Type Satellite-Aided Search and Rescue Systems

    Publication Year: 1979, Page(s):660 - 665
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1258 KB)

    An analysis is made of the errors in the determination of the position of an emergency transmitter in a satellite-aided search and rescue system. The satellite is assumed to be at a height of 820 km in a near-circular near polar orbit. Short data spans of four minutes or less are used. The error sources considered are measurement noise, transmitter frequency drift, ionospheric effects, and error i... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Preliminary Evaluation of GPS Performance for Low-Cost General Aviation

    Publication Year: 1979, Page(s):666 - 672
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1493 KB)

    Preliminary results of a simulation effort to evaluate the requirements and feasibility of the global positioning system (GPS) as a civil air navigation system are presented. Evaluation is made of GPS requirements, from operational considerations, such as application to nonprecision approaches. The conceptual low-cost GPS receiver simulated here does not correct for the ionospheric or trophospheri... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Pulse Compression Results Using Metallic Reflective Array Lines

    Publication Year: 1979, Page(s):673 - 682
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2018 KB)

    Radar pulse-compression results are presented for the first reflective-array compressor (RAC) dispersive delay lines (DDL) with both metallic reflecting arrays and phase-compensating films. The time-bandwidth product of the devices reported is approximately 400. Operation in a recirculation loop with a 37.5-dB Taylor weighting filter yielded 36-dB near-in range sidelobes. RMS phase errors less tha... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Computer Simulation of VLF Power Amplifiers under Reactive Loading

    Publication Year: 1979, Page(s):683 - 689
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1813 KB)

    Recent efforts have been made to achieve substantially increased baud rates with the U. S. Navy's very low frequency (VLF) communication system. Because of the constraints imposed by existing transmitter and antenna structures it was necessary to reexamine the operation of every major system component. Each particular VLF transmitter was subjected to an extensive theoretical analysis followed by a... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Enhanced Power Generation of GSS4PS by Optical Solar Reflectors

    Publication Year: 1979, Page(s):690 - 696
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1462 KB)

    A novel arrangement is proposed to enhance the power generation capabilities of a gravitationally stabilized solid-state-satellite solar-power station (GSS4PS) spherical solar collector. The unilluminated portion of a GSS4PS is illuminated by employing optical solar reflectors. The different mechanisms required for implementation of this arrangement are already space proven. The detailed study of ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Tradeoff between Picture Element Dimensions and Noncoherent Averaging in Side-Looking Airborne Radar

    Publication Year: 1979, Page(s):697 - 708
    Cited by:  Papers (34)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3185 KB)

    An experiment was performed to determine the effect on radar image interpretation of: 1) rectangular instead of square pixels, and 2) spatial resolution in the presence of noncoherent averaging. The result is a proof of the hypothesis that interpretability of images is determined by a "spatial-gray-level (SGL) resolution volume" that is the product of the range resolution, the azimuth resolution, ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Magnetic Position and Orientation Tracking System

    Publication Year: 1979, Page(s):709 - 718
    Cited by:  Papers (279)  |  Patents (83)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2470 KB)

    Three-axis generation and sensing of quasi-static magneticdipole fields provide information sufficient to determine both the position and orientation of the sensor relative to the source. Linear rotation transformations based upon the previous measurements are applied to both the source excitation and sensor output vectors, yielding quantities that are linearly propotional to small changes in the ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Low-Loss Almost Constant False-Alarm Rate Processors

    Publication Year: 1979, Page(s):719 - 723
    Cited by:  Papers (5)  |  Patents (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (791 KB)

    Conventional normalizing constant false-alarm rate (CFAR) circuits use the same configurations when detecting targets in interference regions and in clear regions. The CFAR penalty incurred in the clear region can be reduced by using CFAR processors that recognize the region is clear so that normalization is not necessary. An analysis of the target-detection performance for a particular modified C... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Model for Spectral and Polarization Characteristics of Chaff

    Publication Year: 1979, Page(s):723 - 726
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (524 KB)

    A stochastic model which describes the spectral and polarization characteristics of radar echoes from a chaff cloud consisting of a collection of rotating dipoles, which may have either completely random or preferred orientations, is presented. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Square-Wave Correlation Phase Detector with VLF Atmospheric Noise

    Publication Year: 1979, Page(s):726 - 732
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1060 KB)

    Correlation phase detectors often include hard limiting of both received and reference signals. The characteristics of such " square-wave" correlation detectors for both Gaussian and impluse noise are derived as functions of both phase and carrier-to-noise ratio. Decoding algorithms and accuracy are discussed. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Some Historical Data Concerning the First Italian Naval Radar

    Publication Year: 1979, Page(s):733 - 735
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3020 KB)

    Some history is recalled about what was done in Italy following a proposal by G. Marconi for the development of the first Italian radars during the 10 years from 1933 to 1943. Italian researchers worked without any connection with the activity at that time of American, English, and German research groups because of military secrecy. The people in Italy who independently developed the first Italian... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Simple Generation of One-Parameter Pseudoterrain Surfaces

    Publication Year: 1979, Page(s):735 - 738
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1862 KB)

    A simple method for generating digital terrain surfaces as a function of only the terrain standard deviation is presented. This is accomplished by fitting a postulated autocorrelation model to actual terrain data. Observed relations between model parameters are used to obtain a one-parameter model. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The Effect of Jamming on Monopulse Accuracy

    Publication Year: 1979, Page(s):738 - 741
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (747 KB)

    An expression is applied for the probability density function (pdf) of the monopulse ratio when skin echoes from a passive target are contaminated by interference from a jammer. The analysis is valid for arbitrary signal-to-jam ratio and arbitrary locations of the target and jammer in the beam. For an on-axis skin target and a stand-off jammer at an off-axis location, the "pulling" effect of the j... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • 1979 Pioneer Award

    Publication Year: 1979, Page(s): 742
    Request permission for commercial reuse | PDF file iconPDF (598 KB)
    Freely Available from IEEE

Aims & Scope

IEEE Transactions on Aerospace and Electronic Systems focuses on the organization, design, development, integration, and operation of complex systems for space, air, ocean, or ground environment.  These systems include, but are not limited to, navigation, avionics, spacecraft, aerospace power, radar, sonar, telemetry, defense, transportation, automated testing, and command and control. 

Full Aims & Scope

Meet Our Editors

Editor-in-Chief
Lance Kaplan
Army Research Laboratory