IEEE Transactions on Aerospace and Electronic Systems

Volume AES-23 Issue 6 • Nov. 1987

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  • Table of contents

    Publication Year: 1987, Page(s): c1
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  • IEEE Aerospace and Electronic Systems Society

    Publication Year: 1987, Page(s): c2
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  • From the Editors

    Publication Year: 1987, Page(s): 717
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  • An Optimum First-Order Time Delay Tracker

    Publication Year: 1987, Page(s):718 - 725
    Cited by:  Papers (20)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2612 KB)

    The key to the general estimation problem is the computation ofthe posterior probability density function (PDF) of the desiredparameter, or PDF conditioned on knowing all availableobservations. Any optimum estimate can be computed from this PDF. The theory and implementation of a numerical solution ispresented for the computation of the posterior PDF in real time fortime delay tracking with a firs... View full abstract»

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  • Optimal below Threshold Delay Estimation for Radio Signals

    Publication Year: 1987, Page(s):726 - 730
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1259 KB)

    Time delay estimation of a random signal observed at twospatially separated sites is a problem of considerable practicalinterest. Radio-frequency (RF) signals pose a difficulty that does notarise while treating sonar or other low frequency signals: the signalprocessing can be performed only on low frequency versions of theobserved signals. We propose an estimation scheme, based oncomplex envelopes... View full abstract»

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  • A Norm and Orthogonality Preserving Algorithm

    Publication Year: 1987, Page(s):731 - 737
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1064 KB)

    The numerical solution of differential equations for directioncosine matrices and quaternions is fundamental to many inertialnavigation systems. Algorithms based on Padé approximants areshown to preserve the normality of quaternions and orthogonality ofdirection cosine matrices. An error analysis shows improvedperformance over conventional algorithms. View full abstract»

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  • A Fault-Tolerant Multisensor Navigation System Design

    Publication Year: 1987, Page(s):738 - 756
    Cited by:  Papers (34)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2718 KB)

    The problem of soft-failure tolerant estimation in navigationsystems composed of multiple inertial measurement clusters and oneor more reference sensors is addressed. A new approach ispresented that achieves containment of failed sensor data, andisolates the historic good data provided by the unfailed sensors.Multiple (local) estimates are computed where the estimates areconditioned on different s... View full abstract»

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  • Maneuvering Target Tracking with Hypothesis Testing

    Publication Year: 1987, Page(s):757 - 766
    Cited by:  Papers (17)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2049 KB)

    A new approach is proposed for maneuvering target tracking.Target motion is described by nonlinear models in a sphericalcoordinate system. States of these models are estimated byquantization, multiple hypothesis testing, and a suboptimumdecoding algorithm of information theory. This approach does notrequire linearization of nonlinear models. Hence it is superior toclassical estimation techniques, ... View full abstract»

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  • Spread-Spectrum Multiple Access Using Wideband Noncoherent MFSK

    Publication Year: 1987, Page(s):767 - 775
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1065 KB)

    Two spread-spectrum multiple access systems which usewideband M-ary frequency shift keying (FSK) (MFSK) as theprimary modulation are presented. A bit error rate performanceanalysis is presented and system throughput is calculated for sample C band and Ku band satellite systems. Sample link analyses areincluded to illustrate power and adjacent satellite interferenceconsiderations in practical multi... View full abstract»

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  • Dynamic Programming Solution for Detecting Dim Moving Targets Part II: Analysis

    Publication Year: 1987, Page(s):776 - 788
    Cited by:  Papers (73)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2441 KB)

    An on-board mosaic sensor is staring down from a satellite to afixed point on the ground while collecting frames that contain targetsignatures and background noise. A dynamic programmingalgorithm (DPA) has been developed to optimally detect dim movingtargets that cross the sensor's field of view. The algorithm has beendescribed in Part I of this paper. Here, in Part II, we analyze thealgorithm per... View full abstract»

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  • Design and Performance Comparison of Distributed Detection Networks

    Publication Year: 1987, Page(s):789 - 797
    Cited by:  Papers (81)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1821 KB)

    Optimization of a distributed detection network using theminimum global cost criterion results in local processors thatindividually form the likelihood ratio when the input observationvectors are statistically independent. In addition, the localthresholds and the network performance can be expressed as afunction of the receiver operating characteristics (ROCs) of the localprocessors. The performan... View full abstract»

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  • Bounds on Time-Delay Estimation for Monochromatic Signals

    Publication Year: 1987, Page(s):798 - 808
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1648 KB)

    Time-delay estimation (TDE) of monochromatic signals,observed by spatially separated sensors, is widely used for sourcelocalization in radar/sonar applications. We use lower bounds tostudy the accuracy of TDE as a function of signal to noise ratio(SNR), frequency, and sensor separation. We show that the Cramer-Rao bound, which is frequently used as a standard ofreference, yields optimistic predict... View full abstract»

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  • Use of the Tapped Delay Line Adaptive Array to Increase the Number of Degrees of Freedom for Interference Suppression

    Publication Year: 1987, Page(s):809 - 813
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (736 KB)

    A conjecture is made that a tapped delay line adaptive array of K elements can be used to suppress more than K - 1 noncoincidentcenter frequency interferers when the interferers operate within afraction of the signal bandwidth. This is possible because of theavailability in the increased number of degrees of freedom. Asimulation study is made verifying this conjecture for the case of atwo-element ... View full abstract»

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  • Numerically Efficient Calculations of Clutter Map CFAR Performance

    Publication Year: 1987, Page(s):813 - 814
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (269 KB)

    An alternative expression for the false alarm probability ofclutter map constant false alarm rate (CFAR), as derived by Nitzberg, is suggested. The new expression converges more rapidly. View full abstract»

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  • Addendum to "Independent Ground Monitor Coverage of GPS Satellites"

    Publication Year: 1987, Page(s): 815
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  • M. Barry Carlton Award for 1986

    Publication Year: 1987, Page(s): 816
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  • 1987 Pioneer Award

    Publication Year: 1987, Page(s):817 - 819
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  • The APT on the Polar Orbiting Weather Satellites

    Publication Year: 1987, Page(s):820 - 830
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (10367 KB)

    The receipt of the Pioneer Award has given me a chance to look back over my professional life and the opportunity to take stock of how I helped shape a small part of the world. While I hope this process entertains my contemporaries, more importantly, I hope it stimulates those that are engaged in actively shaping the present. To describe the need for automatic picture transmission (APT), I must re... View full abstract»

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  • Previous Pioneer Awardees

    Publication Year: 1987, Page(s): 831
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  • Call for Pioneer Award Nominations

    Publication Year: 1987, Page(s): 832
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  • Author index

    Publication Year: 1987, Page(s):833 - 836
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  • Subject index

    Publication Year: 1987, Page(s):836 - 842
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  • Information for authors

    Publication Year: 1987, Page(s): 843
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  • IEEE Aerospace and Electronic Systems Society Organization

    Publication Year: 1987, Page(s): 843a
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  • IEEE Aerospace and Electronic Systems Society

    Publication Year: 1987, Page(s): 843b
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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
Michael Rice
Brigham Young University