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IEEE Transactions on Aerospace and Electronic Systems

Issue 3 • Date May 1983

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  • Table of contents

    Publication Year: 1983, Page(s): c1
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  • IEEE Aerospace and Electronic Systems Society

    Publication Year: 1983, Page(s): c2
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  • In Memoriam

    Publication Year: 1983, Page(s): 337
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  • A Nonparametric Sequential Test for Data with Markov Dependence

    Publication Year: 1983, Page(s):338 - 347
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1983 KB)

    A nonparametric sequential probability ratio test has been formed for dependent data. Operating characteristics are provided and their dependence upon the parameters is investigated. An example is given for second-order Markov dependence. View full abstract»

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  • Clutter Covariance Matrix Form Effect on Adaptive MTI Performance

    Publication Year: 1983, Page(s):348 - 353
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1280 KB)

    The performance of an adaptive moving target indicator (MTI), which employs a Wiener predictor by means of a transversal filter, is discussed, taking into consideration the effect of the form of the clutter covariance matrix on the MTI performance. It is emphasized that the main tap position in the transversal filter is an important factor which provides degrees of freedom in the clutter covarianc... View full abstract»

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  • Angle-Independent Doppler Velocity Measurement

    Publication Year: 1983, Page(s):354 - 359
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1688 KB)

    When the angle between the target heading and the range vector is not known a priori, a Doppler velocity radar must estimate them simultaneously by utilizing a longer section of the track. The conventional least squares iterative solution is compared with a new explicit alogorithm which utilizes range-rate derivatives. It is shown that the explicit algorithm is biased but is less sensitive to nois... View full abstract»

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  • Dynamics of Momentum Biased Spacecraft in a Near-Polar Orbit

    Publication Year: 1983, Page(s):360 - 368
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1623 KB)

    The equations of motion of a momentum biased spacecraft are derived in a general form. The spacecraft is assumed to be orbiting in a near-elliptical orbit. An aerodynamic torque model which accounts for the atmospheric superrotation is assumed. The equilibrium attitude angles are obtained in terms of modified Bessel functions. Analytic expressions for the long-term motion of the momentum biased ax... View full abstract»

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  • Group-Complementary Array Coding for Radar Clutter Rejection

    Publication Year: 1983, Page(s):369 - 379
    Cited by:  Papers (16)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3789 KB)

    A radar waveform design technique which utilizes Lagrange's method of multipliers to control temporal sidelobes and to reduce Doppler sidelobes is described. This classical method of constrained optimization is applied to the problem of synthesizing a radar wave-form where mismatch loss is the objective function to be minimized. The associated constraints are taken from expressions for the composi... View full abstract»

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  • Prediction of Adaptive Array Performance

    Publication Year: 1983, Page(s):380 - 388
    Cited by:  Papers (17)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1927 KB)

    A direct relationship between the conventional properties of an array and the array performance in an adaptive mode is given. Expressions are provided to obtain the output signal-to-interference-plus-noise ratio (SINR) of an adaptive array in terms of its conventinal pattern and the locations of the desired signal and jammers. These expressions permit one to evaluate the performance of an adaptive... View full abstract»

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  • Ambiguities in Spacebornene Synthetic Aperture Radar Systems

    Publication Year: 1983, Page(s):389 - 397
    Cited by:  Papers (85)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4147 KB)

    Several aspects of range and azimuth (time delay and Doppler) ambiguities in spaceborne synthetic aperture radars (SARs) are examined. An accurate method to evaluate the ratio of the intensities of the ambiguities to that of the signal is described. This method has been applied to the nominal SAR system on SEASAT and the variations of this ratio as a function of orbital latitude and attitude contr... View full abstract»

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  • A Comparison of Noncoherent and Coherent MTI Improvement Factors

    Publication Year: 1983, Page(s):398 - 404
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1868 KB)

    An analysis based on statistical considerations and Monte Carlo simulations indicates that a noncoherent moving target indicator (MTI) using a linear envelope detector differs from one using a square law envelope detector. The square law envelope detector is usually described in the literature because of ease of analysis, and it is commonly stated or implied that the results are the same for the t... View full abstract»

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  • Beam Area Determination for Multiple-Beam Satellite Communication Applications

    Publication Year: 1983, Page(s):405 - 412
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1964 KB)

    An exact analytical model and a simple numerical solution are presented for determining the surface area of the Earth illuminated by a conical beam, with an elliptical cross section, emanating from a satellite. The model is used to generate sets of parametric curves for determination of the beam area as a function of the different satellite locations, beam locations, and beamwidths. Numerical resu... View full abstract»

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  • DC-to-DC Converter Power-Train Optimization for Maximum Efficiency

    Publication Year: 1983, Page(s):413 - 427
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4318 KB)

    A new way is given to describe the independent and dependent design variables of the power train of a dc-to-dc converter in terms of a multidimensional design-parameter space. These concepts provide a framework for examining the problem of design optimization of the power train, with particular emphasis on the maximization of converter efficiency. Numerous examples of important parameterspace surf... View full abstract»

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  • Evaluating the Detectability of Gaussian Stochastic Signals by Steepest Descent Integration

    Publication Year: 1983, Page(s):428 - 437
    Cited by:  Papers (11)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1569 KB)

    It is shown how to compute the detection probability of certain signals by numerical integration of the Laplace inversion integral involving the characteristic function or the moment-generating function of the detection statistic. The contour of integration is taken as the path of steepest descent of the integrand and is determined numerically as the integration proceeds. The method is applied to ... View full abstract»

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  • Controlled-Quantity Concept in Small-Signal Analysis of Switching Power Cells

    Publication Year: 1983, Page(s):438 - 446
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1786 KB)

    The notion of a controlled quantity of a switching power cell leads to a set of six (characteristic) coefficients containing all the information on the small-signal, low-frequency behavior of any linearizable cell and defining a universal linear equivalent model of the cell. The result is a dramatic simplification of the small-signal analysis and systematization of the cells. As an illustration, t... View full abstract»

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  • Orbital Inclination Effects on Communications Satellite System Design

    Publication Year: 1983, Page(s):447 - 453
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1772 KB)

    Starting from the analysis of recommendations and technical reports of the International Telecommunications Union on the stationkeeping and pointing accuracy requirements of quasi-geostationary communications satellites, the following effects of orbital inclination and yaw control error on the system design are discussed: (1) the excursion in longitude during a 24 h period; (2) the efficiency of t... View full abstract»

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  • Maximum Power Transfer for Full-Wave Rectifier Circuits

    Publication Year: 1983, Page(s):454 - 461
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1315 KB)

    An analysis is done to determine the maximum power transfer conditions for full-wave rectifier circuits. Potential applications noted are implanted medical instruments, inductive power transfer to weapons, power transfer using space reflectors, and power generation in space. Three types of series impedances are considered: resistive/inductive (RL), resistive/capacitive (RC), and resistive/inductiv... View full abstract»

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  • On the Performance of Video Band Complex Correlators

    Publication Year: 1983, Page(s):462 - 466
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    The performance data for various correlation schemes for Gaussian signals converted from the intermediate frequency band to the video band are derived and discussed. The folded-band conversion scheme is shown to have significant advantages for continuum observations in radio astronomy. View full abstract»

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  • Distributed Processing and Fiber-Optic Communications in Air Data Measurement

    Publication Year: 1983, Page(s):467 - 473
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1928 KB)

    The application of distributed processing, fiber optics, and hardware redundancy to collecting airstream data in the digitally controlled variable-response research aircraft (VRA) at the Flight Research Laboratory of Princeton University is described. Microprocessor-controlled instrumentation packages in each wingtip of the aircraft collect angle-of-attack and sideslip data in digital form; after ... View full abstract»

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  • Transformer Induced Instability of the Series Resonant Converter

    Publication Year: 1983, Page(s):474 - 482
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2774 KB)

    It is shown that the common series resonant power converter is subject to a low frequency oscillation that can lead to the loss of cyclic stability. This oscillation is caused by a low frequency resonant circuit formed by the normal L and C components in series with the magnetizing inductance of the output transformer. Three methods for eliminating this oscillation are presented and analyzed. One ... View full abstract»

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  • Self-Cohering an Airborne e Radio Camera

    Publication Year: 1983, Page(s):483 - 490
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1808 KB)

    By distributing antenna elements or small subarrays throughout the skin of an aircraft, a large portion of the airframe can act as an electromagnetic transducer. The basic problem associated with such a design is that uncertainties in element locations due to the nonrigidness of the airframe induce phase errors. Self-cohering techniques are required to compensate for those errors. Four such techni... View full abstract»

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  • Optimal Integration Time for Signals Having Uncompensated Quadratic Phase Components

    Publication Year: 1983, Page(s):491 - 492
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (234 KB)

    The integration time which maximizes the signal-to-noise ratio (SNR) for uncompensated processing of a pulse having a quadratic phase component is derived. View full abstract»

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  • On the Squared Envelope of a Gaussian Process

    Publication Year: 1983, Page(s):492 - 495
    Cited by:  Papers (1)
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    First Page of the Article
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  • Information for authors

    Publication Year: 1983, Page(s): 495a
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    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. 

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Meet Our Editors

Editor-in-Chief
Lance Kaplan
Army Research Laboratory