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Aerospace and Electronic Systems, IEEE Transactions on

Issue 6 • Date Nov. 1986

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  • Table of contents

    Publication Year: 1986 , Page(s): c1
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  • IEEE Aerospace and Electronic Systems Society

    Publication Year: 1986 , Page(s): c2
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  • From the Editors

    Publication Year: 1986 , Page(s): 669
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  • A Suboptimum Rank Test for Nonparametric Radar Detection

    Publication Year: 1986 , Page(s): 670 - 680
    Cited by:  Papers (6)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (2743 KB)  

    The optimum rank detector structure, in the Neyman-Pearson sense and under Gaussian noise conditions, is approximated by a suboptimum structure that depends on an adjustable parameter. This new rank detector, which operates on radar video signal, includes other well-known detectors as particular cases. The asymptotic relative efficiency (ARE) of the proposed rank detector is computed, with its max... View full abstract»

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  • Frequency Tracking Characteristics of Split-Loop Phase-Locked Receivers

    Publication Year: 1986 , Page(s): 681 - 687
    Request Permissions | Click to expandAbstract | PDF file iconPDF (1347 KB)  

    The excess time delay introduced by the incorporation of the intermediate frequency (IF) stage within the phase-locked loop (PLL) causes serious deterioration in the acquisition and tracking performance of the loop. The split-loop phase-locked system suggested by McGeehan and Sladen considerably reduces the effect of time delay on the acquisition and tracking performance of the loop. The frequency... View full abstract»

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  • Effect of Initial Values of Adaptive Arrays

    Publication Year: 1986 , Page(s): 688 - 694
    Cited by:  Papers (4)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (1474 KB)  

    The effect of initial weight values on the transient characteristics is investigated on three kinds of adaptive arrays under different principles, i.e., the directionally constrained minimization of power (DCMP), the least mean square (LMS), and the maximum signal-tonoise ratio (MSN). Analysis and computer simulation demonstrate how the convergence rate is affected by the initial setting. The best... View full abstract»

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  • Staggered Costas Signals

    Publication Year: 1986 , Page(s): 695 - 702
    Cited by:  Papers (2)  |  Patents (1)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (3616 KB)  

    A radar signal, based on coherent processing of a train of staggered Costas bursts, is suggested and investigated. The selection of sequences of each burst is based on a minimum number of collocation of their individual ambiguity function sidelobe peaks. The resulting ambiguity function combines qualities of both "thumbtack" and "bed of nails" signals. Comparison with linear-FM, V-FM, and compleme... View full abstract»

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  • A Modified Karhunen-Loeve Model of Gravity Disturbance Vector

    Publication Year: 1986 , Page(s): 703 - 707
    Cited by:  Papers (1)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (1239 KB)  

    A modified anisotropic Karhunen-Loeve (KL) model for the gravity disturbing potential is proposed. This model, unlike the previous KL model of Bose, does not vanish on the boundaries of a local region. Laplace's equation for the gravity disturbing potential and flatearth Vening-Meinesz relationships of the gravity disturbance vectorcomponents (¿,¿,¿g) when the model is isotropic, are exploited ... View full abstract»

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  • Fast Maximnurm Likelihood Joint Estimation of Frequency and Frequency Rate

    Publication Year: 1986 , Page(s): 708 - 715
    Cited by:  Papers (65)  |  Patents (2)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (2571 KB)  

    A fast maximum likelihood algorithm is presented that jointly estimates the frequency and frequency rate of a sinusoid corrupted by additive Gaussian white noise. It consists of a coarse search and a fine search. First the two-dimensional frequency-frequency rate plane is subdivided into parallelograms whose size depends on the region of convergence of Newton's method used in maximizing the log-li... View full abstract»

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  • Two-State Feedback Loop Adaptive Arrays for Pulsed Interference Signals

    Publication Year: 1986 , Page(s): 716 - 724
    Request Permissions | Click to expandAbstract | PDF file iconPDF (2032 KB)  

    A two-state feedback loop is presented which increases the effectiveness of an adaptive array in the presence of pulsed interference signals. In the case of the two-state feedback loop, one state permits the maximum adpative response, consistent with the loop stability, and is activated in the presence of an interfering pulse. During the other state, which is activated when the interfering pulse i... View full abstract»

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  • Design of Switching Regulator with Combined FM and On-Off Control

    Publication Year: 1986 , Page(s): 725 - 731
    Cited by:  Papers (9)  |  Patents (17)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (2197 KB)  

    The design and implementation of a switching regulator incorporating a high-frequency series-resonant converter and a combined FM and on-off feedback control is presented. The combined FM and on-off control results in a better conversion efficiency and a wider range of operational input voltage and output current. A 22.5 V, 50 W experimental regulator has been built to demonstrate the practicality... View full abstract»

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  • Adaptive Estimation for a System with Unknown Measu rement Bias

    Publication Year: 1986 , Page(s): 732 - 739
    Cited by:  Papers (4)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (1389 KB)  

    An adaptive state estimator for passive underwater tracking of maneuvering targets is developed. The state estimator is designed specifically for a system containing unknown or randomly switching biased measurements. In modeling the stochastic system, it is assumed that the bias sequence dynamics can be modeled by a semi-Markov process. By incorporating the semi-Markovian concept into a Bayesian e... View full abstract»

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  • Normalized LMS Algorithm Degradation Due to Estimation Noise

    Publication Year: 1986 , Page(s): 740 - 750
    Cited by:  Papers (4)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (1581 KB)  

    The steady-state weight vector derived by either the least mean square (LMS) or normalized least mean square (NLMS) algorithms has random deviations from the optimum values. These deviations increase the steady-state residue power. A previous paper derived the LMS weight noise effects for a multiple sidelobe canceller (MSLC) application. This paper describes the NLMS weight noise effects. It is sh... View full abstract»

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  • Composite Bound on Arrival Time Estimation Errors

    Publication Year: 1986 , Page(s): 751 - 756
    Cited by:  Papers (10)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (1135 KB)  

    Time of arrival (TOA) estimation of narrowband signals is a problem of considerable practical interest in radar and sonar applications. A new technique is presented to analyze the mean square error (MSE) performance of TOA estimation schemes, based on recently developed lower bound. We obtain a complete characterization of the MSE as a function of the signal and noise parameters. The results are g... View full abstract»

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  • Analysis and Design of Series Resonant Converter by State-Plane Diagram

    Publication Year: 1986 , Page(s): 757 - 763
    Cited by:  Papers (37)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (1361 KB)  

    Analysis based on the state-plane diagram is given for series resonant converters operating in the frequency range 0.5 ¿ fs/fo ¿ 1.0. When the voltages and currents in the converter are normalized, design parameters take on special geometric meanings in the normalized state diagram. Examples of converter design using graphical methods are given for the cases of ¿ and ¿ control. Control charact... View full abstract»

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  • Precision Synchronization of Satellites in Inclined Orbits

    Publication Year: 1986 , Page(s): 764 - 780
    Request Permissions | Click to expandAbstract | PDF file iconPDF (2361 KB)  

    Synchronization between an Earth station and a satellite in geostationary orbit can be accomplished by repeatedly transmitting sync burst signals and making small timing corrections. However, when a satellite is in an inclined nonsynchronous orbit, such as a navigation satellite, the problem is more complex due to the high relative velocity of the navigation satellite relative to the ground. One p... View full abstract»

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  • A Selected Bibliography on Adaptive Antenna Arrays

    Publication Year: 1986 , Page(s): 781 - 798
    Cited by:  Papers (5)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (2713 KB)  

    An adaptive antenna array is defined as an antenna array whose output is the weighted sum of the signals received at the antennas, with signal-dependent automatic adjustment of the weights to optimize some criterion. This open-literature bibliography of papers on the subject is intended to provide a brief overview of the field, and the authors involved, up to the end of 1985. Papers are listed bot... View full abstract»

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  • Limitations on SAR Image Area Due to Motion through Resolution Cells

    Publication Year: 1986 , Page(s): 799 - 803
    Cited by:  Papers (2)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (625 KB)  

    Range-Doppler imaging systems are degraded by the motion of an object through its resolution cells during image formation. Given the range resolution dR, the cross-range (azimuth) resolution dA, and the wavelength ¿, the image's range extent DR and cross-range extent DA must be constrained by ¿DR ¿ 4d2A; ¿DA ¿ 4dAdR to avoid significant image degradation. By implication, we can image a rectan... View full abstract»

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  • The Effect of the Common Process Noise on the Two-Sensor Fused-Track Covariance

    Publication Year: 1986 , Page(s): 803 - 805
    Cited by:  Papers (141)  |  Patents (4)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (388 KB)  

    This note deals with the effect of the common process noise on the fusion (combination) of the state estimates of a target based on measurements obtained by two different sensors. This problem arises in a multisensor environment where each sensor has its information processing (tracking) subsystem. In the case of an ¿-ß tracking filter the effect of the process noise is that, over a wide range o... View full abstract»

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  • Information for authors

    Publication Year: 1986 , Page(s): 806
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  • Author index

    Publication Year: 1986 , Page(s): 807 - 809
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  • Subject index

    Publication Year: 1986 , Page(s): 809 - 815
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  • Annual Combined Index to IEEE Publications [advertisement]

    Publication Year: 1986 , Page(s): 816
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  • IEEE copyright form

    Publication Year: 1986 , Page(s): 817 - 818
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  • IEEE Aerospace and Electronic Systems Society Organization

    Publication Year: 1986 , Page(s): 818-a
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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