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IEEE Transactions on Aerospace and Electronic Systems

Issue 3  Part 1 • Jul 2000

 This issue contains several parts.Go to:  Part 2 

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Displaying Results 1 - 25 of 30
  • Transfer circuit for measuring individual battery voltages in series packs

    Publication Year: 2000, Page(s):933 - 940
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (520 KB)

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  • Line-of-sight pointing accuracy improvements through analytic boresighting

    Publication Year: 2000, Page(s):974 - 982
    Cited by:  Papers (137)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (620 KB)

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  • Admittance space stability analysis of power electronic systems

    Publication Year: 2000, Page(s):965 - 973
    Cited by:  Papers (156)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (924 KB)

    Power electronics based power distribution systems (PEDSs) are becoming increasingly common, particularly in marine and aerospace applications. Stability analysis of this class of systems is crucial due to the potential for negative impedance instability. Existing techniques of stability analysis introduce artificial conservativeness, are sensitive to component grouping, and at the same time do no... View full abstract»

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  • 1999 Pioneer Award

    Publication Year: 2000, Page(s):1013 - 1015
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    Freely Available from IEEE
  • Matrix-construction calibration method for antenna arrays

    Publication Year: 2000, Page(s):819 - 828
    Cited by:  Papers (31)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (764 KB)

    The experimental evaluation of a calibration method (1994) developed for receive antenna arrays is presented. The method constructs a calibration matrix to compensate for unequal gain and phase responses at the array elements, mutual coupling among the elements, and small errors in element positions. The results showed that the method (1) reduced the deviation of the element gain patterns from the... View full abstract»

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  • Modified GLRT signal detection algorithm

    Publication Year: 2000, Page(s):810 - 818
    Cited by:  Papers (22)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (680 KB)

    The problem of signal detection in unknown Gaussian interference utilizing an adaptive array is considered here. Two modified generalized likelihood ratio test (GLRT) detectors are suggested that improve on the performance of Kelly's GLRT when the interference has low-rank property and the sample support for estimating the array covariance matrix is limited. Under these adverse conditions, the sam... View full abstract»

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  • Multichannel two-stage detection of signals

    Publication Year: 2000, Page(s):793 - 809
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1400 KB)

    This paper deals with multichannel two-stage sequential detectors (MTSDs) based on different kinds of decision statistics. Explicit expressions are derived for the basic performance measures of such detectors: probability of false alarm, probability of detection, and average sample number (ASN). These characteristics of an MTSD depend on its main parameters: decision thresholds and durations of bo... View full abstract»

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  • Robust optimal solution to the attitude/force control problem

    Publication Year: 2000, Page(s):784 - 792
    Cited by:  Papers (16)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (712 KB)

    Many spacecraft have an orbit control subsystem (OCS) which applies forces in order to maintain the orbital parameters within certain bounds. On the other hand, the attitude control subsystem (ACS) applies torques so that the spacecraft keeps its desired orientation. We explore the interaction of an orbital control maneuver with the attitude of a spacecraft. We propose to use the thrusters that pr... View full abstract»

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  • Doppler tracker for a spaceborne ScanSAR system

    Publication Year: 2000, Page(s):907 - 924
    Cited by:  Papers (8)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1012 KB)

    This paper presents a methodology for tracking the Doppler parameters in long swaths of ScanSAR signals. The approach is entirely developed around the physical model of the Doppler effect, parameterized in terms of the spacecraft attitude angles. A new, combined algorithm is designed to estimate yaw and pitch and resolve the PRF (pulse repetition frequency) ambiguity using all available, current, ... View full abstract»

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  • The beginnings of solid state radar

    Publication Year: 2000, Page(s):1016 - 1019
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1036 KB)

    The author outlines the groundwork and the important development steps carried out in Texas Instruments since late 1950s to the year 2000 on the development of radar solid modules. This includes the use of semi-insulating GaAs as a microwave substrate material, the development of the 94 GHz receiver and the first GaAs monolithic microwave circuit to be operated. The years of the MERA program are c... View full abstract»

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  • Small field-of-view star identification using Bayesian decision theory

    Publication Year: 2000, Page(s):773 - 783
    Cited by:  Papers (28)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1056 KB)

    We describe a simple autonomous star identification algorithm which is effective using a narrow field of view (FOV) (2 deg), making the use of a science camera for star identification feasible. This work extends that of Padgett and Kreutz-Delgado (1997) by setting decision thresholds using Bayesian decision theory. Our simulations show that when positional accuracy of imaged stars is 0.5 pixel (st... View full abstract»

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  • Intelligent CFAR processor based on data variability

    Publication Year: 2000, Page(s):837 - 847
    Cited by:  Papers (73)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (944 KB)

    An intelligent constant false alarm rate (CFAR) processor to perform adaptive threshold target detection is presented. It employs a composite approach based on the well-known cell averaging CFAR (CA-CFAR), smallest of CFAR (SO-CFAR), and greatest of CFAR (GO-CFAR) processors. Data in the reference window is used to compute a second-order statistic called the variability index (VI) and the ratio of... View full abstract»

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  • Source tracking with a gradient-based eigenstructure algorithm

    Publication Year: 2000, Page(s):859 - 868
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (692 KB)

    A new gradient-based eigenstructure algorithm to locate and track the azimuth and elevation angles of unknown sources in a 3-dimensional environment is proposed and investigated. Starting from initial estimates of the source locations from, say, a coarse search of the multiple signal classification (MUSIC) spectrum, the algorithm obtains better estimates and tracks sources in a repetitive cyclical... View full abstract»

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  • Analysis and implementation of a three-level PWM rectifier/inverter

    Publication Year: 2000, Page(s):948 - 956
    Cited by:  Papers (25)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (696 KB)

    A three-level pulse width modulation (PWM) technique for ac/dc/ac converter is proposed. Single-phase three-level rectifier based on double boost configuration with power factor correction is used in the input side. Three-phase three-level voltage source inverter based on diode clamped scheme is employed in order to reduce the harmonic content of the inverter output voltages. In the rectifier side... View full abstract»

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  • Scalar-based direct algorithm mapping FPLD implementation of a Kalman filter

    Publication Year: 2000, Page(s):879 - 888
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (804 KB)

    A methodology of the scalar-based direct algorithm mapping (SBDAM) is defined and presented. The methodology uses direct mapping of the arithmetic expressions on to a field-programmable logic device (FPLD). A Kalman filter used in multiple target tracking (MTT) applications has been implemented in FPLD via SBDAM and via the other matrix-based systolic algorithm engineering (MBSAE) approach. The co... View full abstract»

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  • Recognizing and tracing multipath returns in turntable radar imagery

    Publication Year: 2000, Page(s):898 - 906
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (688 KB)

    Responses in turntable radar imagery are properly focused if they behave as fixed point scatterers in the focal plane chosen for polar reformatting. Other responses, whether generated by more complicated backscattering or by fixed point scatterers outside the focal plane, have a curved image phase. This curved phase can be used to recognize responses due to reflection between separated scatterers,... View full abstract»

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  • Single-switch frequency-controlled electronic dimming ballast with unity power factor

    Publication Year: 2000, Page(s):1001 - 1006
    Cited by:  Papers (4)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (436 KB)

    This paper describes a single-switch electronic dimming ballast with unity input power factor. The proposed single-switch ballast is the combination of a boost converter and a modified series/parallel inverter. Dimming control is achieved by varying the switching frequency. Design considerations are listed and experimental results verify the analytical derivations View full abstract»

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  • Determination of cross regulation in multioutput resonant converters

    Publication Year: 2000, Page(s):760 - 772
    Cited by:  Papers (13)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (804 KB)

    This paper presents the analysis and the technique of determining the cross regulation characteristics in multioutput resonant converters. The steady state cross regulation characteristics are derived using the state-plane technique, illustrated by the example of a two-output clamped series resonant converter (SRC) operating in the discontinuous conduction mode below resonance. The cross regulatio... View full abstract»

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  • Classical equivalent circuit parameters for a double-layer capacitor

    Publication Year: 2000, Page(s):829 - 836
    Cited by:  Papers (96)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (732 KB)

    As an emerging technology in the area of energy storage, the double-layer capacitor is a promising device for certain niche applications. The double-layer capacitor is a low voltage device exhibiting an extremely high capacitance value in comparison with other capacitor technologies of a similar physical size. Capacitors with values in excess of 1500 F are now available. In slow discharge applicat... View full abstract»

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  • Application of continuous wavelet transform for study of voltage flicker-generated signals

    Publication Year: 2000, Page(s):925 - 932
    Cited by:  Papers (14)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (608 KB)

    An application of continuous wavelet transform (CWT) for the analysis of voltage flicker-generated signals is proposed. With the time-frequency localization characteristics embedded in wavelets, the time and frequency information of a waveform can be integrally presented, thereby enhancing the monitoring of voltage flicker-generated signals at different time intervals. The Morlet wavelet has been ... View full abstract»

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  • Detectability models for multiple access low-probability-of-intercept networks

    Publication Year: 2000, Page(s):848 - 858
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (840 KB)

    Increased demands for communications in the tactical battlefield have driven the development of multiple access low-probability-of-intercept (LPI) networks. Most detectability studies of LPI networks focus on the individual links of the network, in which the intercept and detectability calculations are conducted for a single network transmitter. We assume here that the interceptor does not attempt... View full abstract»

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  • Communications capacity analysis for multiple-beam processing satellites

    Publication Year: 2000, Page(s):941 - 947
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (544 KB)

    This paper analytically compares the communications capacity of various satellite payload architectures against a fixed quality of service (QoS) metric which is connection blocking probability. The effectiveness of the payload architectures is dependent on the payload switching technique, multiple access scheme, and the number of satellite antenna beams utilized. The payloads considered are an on-... View full abstract»

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  • Robust algorithm for real-time route planning

    Publication Year: 2000, Page(s):869 - 878
    Cited by:  Papers (88)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1324 KB)

    Route planning for intelligent guidance and navigation systems is an extremely complex problem with both military and commercial applications. Standard route planning algorithms usually generate a minimum cost route based on a predetermined cost function. Unfortunately, such a solution may not represent a desirable route for various mission scenarios. We present a novel route planning approach to ... View full abstract»

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  • Study of system instability in solar-array-based power systems

    Publication Year: 2000, Page(s):957 - 964
    Cited by:  Papers (20)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (664 KB)

    A study of power system stability, based on analytical modeling, is presented for application to a current-mode dc-dc converter power system with a solar array input and a line-filter interface. A fundamental analytical background is provided for use in analyses of systems of similar architecture. With this architecture, there is a potential for two sources of instability: (1) the relatively high-... View full abstract»

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  • Adaptive CFAR processor for nonhomogeneous environments

    Publication Year: 2000, Page(s):889 - 897
    Cited by:  Papers (21)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (764 KB)

    A new constant false alarm rate (CFAR) processor is presented, that exhibits a noticeable detection performance in the presence of interfering targets, as well as an excellent false alarm rate (FAR) regulation at the clutter power transition regions. The presented CFAR processor, which is designed to work on the logarithmic amplified video signals, can also easily adapt itself to new environmental... View full abstract»

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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