IEEE Transactions on Aerospace and Electronic Systems

Volume 39 Issue 4 • Oct. 2003

Filter Results

Displaying Results 1 - 25 of 32
  • Low-harmonic thyristor rectifiers applying current injection

    Publication Year: 2003, Page(s):1365 - 1374
    Cited by:  Papers (14)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (644 KB) | HTML iconHTML

    Application of the third harmonic current injection in three-phase full-bridge thyristor rectifiers is analyzed. Spectra of the rectifier output terminal voltages are derived. Results of the optimal current injection for diode bridge rectifiers are generalized for the thyristor rectifiers, and the waveform of the optimal injected current is derived. It is shown that for the optimal third harmonic ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Survey of maneuvering target tracking. Part I. Dynamic models

    Publication Year: 2003, Page(s):1333 - 1364
    Cited by:  Papers (684)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (881 KB) | HTML iconHTML

    This is the first part of a comprehensive and up-to-date survey of the techniques for tracking maneuvering targets without addressing the so-called measurement-origin uncertainty. It surveys various mathematical models of target motion/dynamics proposed for maneuvering target tracking, including 2D and 3D maneuver models as well as coordinate-uncoupled generic models for target motion. This survey... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Multiple radar targets estimation by exploiting induced amplitude modulation

    Publication Year: 2003, Page(s):1316 - 1332
    Cited by:  Papers (35)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1020 KB) | HTML iconHTML

    This work deals with the problem of estimating complex amplitudes, Doppler frequencies, and directions of arrival (DOA) of multiple targets present in the same range-azimuth resolution cell of a surveillance radar. The maximum likelihood (ML) and the asymptotic (large sample size) ML (AML) estimators are derived. To reduce the computational complexity of the maximization of the nonlinear two-dimen... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Submarine floating antenna model for LORAN-C signal processing

    Publication Year: 2003, Page(s):1304 - 1315
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (658 KB) | HTML iconHTML

    An electromagnetic model of the floating antenna used by submarines for LORAN-C radionavigation and very low frequency (VLF) communications is proposed. We present a description of the floating antenna and analyze its electric characteristics. The current in the horizontal wire induced by the lateral wave is then computed and we suggest a model that yields to a nonrational transfer function. A par... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Small perturbations on artificial satellites as an inverse problem

    Publication Year: 2003, Page(s):1270 - 1276
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (457 KB) | HTML iconHTML

    The geocentric motion of a satellite is mathematically simulated by a system of second order ordinary differential equations involving two perturbing functions. The first one represents the second term of the gravitational potential of the Earth and the second is due to the atmospheric drag. Assuming that the solutions of the differential equations and their first derivatives are known from measur... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Automatic spectral target recognition in hyperspectral imagery

    Publication Year: 2003, Page(s):1232 - 1249
    Cited by:  Papers (176)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (10530 KB) | HTML iconHTML

    Automatic target recognition (ATR) in hyperspectral imagery is a challenging problem due to recent advances of remote sensing instruments which have significantly improved sensor's spectral resolution. As a result, small and subtle targets can be uncovered and extracted from image scenes, which may not be identified by prior knowledge. In particular, when target size is smaller than pixel resoluti... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Lyapunov-based decentralized adaptive control for laser beam tracking systems

    Publication Year: 2003, Page(s):1191 - 1200
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1009 KB) | HTML iconHTML

    A successful controller design is crucial for establishing and maintaining an optical link between free-space communication stations engaged in a laser communication session. This task is quite difficult due to nonlinear behavior, cross-coupled dynamics, and time-varying characteristics of all known beam steering technologies. A novel adaptive control technique utilizing Lyapunov function to ensur... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Self-organizing fuzzy learning CLOS guidance law design

    Publication Year: 2003, Page(s):1144 - 1151
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (660 KB) | HTML iconHTML

    A new self-organizing fuzzy logic control (SOFLC) design method is proposed. The proposed method is applied to the command line-of-sight (CLOS) guidance law design. The SOFLC contains two sets of fuzzy inference logic. One is the fuzzy logic controller and the other is the rule modifier. The new learning method of the rule modifier is developed based on a fuzzy learning algorithm. The modification... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Approximating the SNR value in detection problems

    Publication Year: 2003, Page(s):1446 - 1452
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (360 KB) | HTML iconHTML

    The inverse problem of finding the required signal-to-noise ratio (SNR) given a set of probability parameters and number of samples is a nontrivial problem. Several past attempts have proposed simple approximations for the SNR, but the achieved accuracy varied across the parameter space and was at times poor. The approximation equations proposed here are considerably more accurate over a larger pa... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Novel wideband multimode hybrid interferometer system

    Publication Year: 2003, Page(s):1396 - 1406
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (865 KB) | HTML iconHTML

    In this paper, a novel hybrid of a three-element interferometer comprised of multimode antennas is analyzed. The phase ambiguities associated with the long baselines of the interferometer are resolved using the "coarse" angle estimates provided by the multimode antenna. This results in the elimination of the short baseline interferometers of the conventional five-element interferometer. It is show... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Zero dynamics-based design of damping networks for switching converters

    Publication Year: 2003, Page(s):1292 - 1303
    Cited by:  Papers (25)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (872 KB) | HTML iconHTML

    A new design technique of the input filter damping network for dc-to-dc switching converters of buck type is presented. This technique is derived by means of zero dynamics analysis of the switching converter and yields equivalent results to those obtained using the classical approach based on minimizing the filter output impedance. The new method can be applied in converters of buck type with two ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Nontracking antenna performance for inertially controlled spacecraft using TDRSS

    Publication Year: 2003, Page(s):1263 - 1269
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (734 KB) | HTML iconHTML

    A series of tests to validate an antenna pointing concept for spin-stabilized satellites using a data relay satellite is described. These tests show that proper antenna pointing on an inertially stabilized spacecraft can lead to significant access time through the relay satellite even without active antenna pointing. We summarize the test results, the simulations to model the effects of antenna pa... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Minimal submodel-set algorithm for maneuvering target tracking

    Publication Year: 2003, Page(s):1218 - 1231
    Cited by:  Papers (9)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1025 KB) | HTML iconHTML

    The variable structure multiple model (VSMM) approach to the maneuvering target tracking problem is considered. A new VSMM design, the minimal submodel-set switching (MSMSS) algorithm for tracking a maneuvering target is presented. The MSMSS algorithm adaptively determines the minimal set of models from the total model set and uses this to perform multiple models (MM) estimation. In addition, an i... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Empirical virtual sliding target guidance law design: an aerodynamic approach

    Publication Year: 2003, Page(s):1179 - 1190
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (671 KB) | HTML iconHTML

    We present a novel empirical virtual sliding target (VST) guidance law for the midcourse phase of a long range surface-to-air missile that uses the simplicity of the conventional proportional navigation (PN) guidance law while exploiting the aerodynamic characteristics of a missile's flight through the atmosphere to enable the missile to achieve superior performance than that achieved by conventio... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Algorithm of Earth-centered Earth-fixed coordinates to geodetic coordinates

    Publication Year: 2003, Page(s):1457 - 1461
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (496 KB) | HTML iconHTML

    The transformation between Earth-centered Earth-fixed (ECEF) coordinates and geodetic coordinates is required in many applications. This correspondence presents an iterative approach using the Newton-Raphson (NR) method that has good efficiency and accuracy and is free from singularity and nonconvergence except in a small region near the center of the Earth. Comparisons with other well-known appro... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Adaptive nonlinear guidance law considering control loop dynamics

    Publication Year: 2003, Page(s):1134 - 1143
    Cited by:  Papers (54)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (684 KB) | HTML iconHTML

    A new adaptive nonlinear guidance law is proposed here. The fourth order state equation for integrated guidance and control loop is formulated taking into consideration the target uncertainties and control loop dynamics. The state equation is further changed into the normal form by nonlinear coordinate transformation. Using the normal form of state equation, an adaptive nonlinear guidance law is p... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Theorem for the combination of bistatic radar measurements using least squares

    Publication Year: 2003, Page(s):1441 - 1445
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (271 KB) | HTML iconHTML

    In order to improve position finding performance, least squares method is often used to combine the measurement sets of bistatic radar system. However, which measurement sets can be combined by least squares method and which cannot have received little attention until now. We address this issue based on 2 measurements of bistatic radar system, for example (ρ, θT), and present ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Feature enhancement and ATR performance using nonquadratic optimization-based SAR imaging

    Publication Year: 2003, Page(s):1375 - 1395
    Cited by:  Papers (24)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (8442 KB) | HTML iconHTML

    We present an evaluation of the impact of a recently proposed synthetic aperture radar (SAR) imaging technique on feature enhancement and automatic target recognition (ATR) performance. This image formation technique is based on nonquadratic optimization, and the images it produces appear to exhibit enhanced features. We quantify such feature enhancement through a number of criteria. The findings ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Reduced spatio-temporal complexity MMPP and image-based tracking filters for maneuvering targets

    Publication Year: 2003, Page(s):1277 - 1291
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (727 KB) | HTML iconHTML

    We present reduced-complexity nonlinear filtering algorithms for image-based tracking of maneuvering targets. In image-based target tracking, the mode of the target is observed as a Markov modulated Poisson process (MMPP) and the aim is to compute optimal estimates of the target's state. We present a reduced complexity algorithm in two steps. First, a gauge transformation is used to reexpress the ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Nonlinear adaptive and sliding mode flight path control of F/A-18 model

    Publication Year: 2003, Page(s):1250 - 1262
    Cited by:  Papers (35)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (816 KB) | HTML iconHTML

    The question of inertial trajectory control of aircraft in the three-dimensional space is discussed. It is assumed that the nonlinear aircraft model has uncertain aerodynamic derivatives. The control system is decomposed into a variable structure outer loop and an adaptive inner loop. The outer-loop feedback control system accomplishes (x,y,z) position trajectory and sideslip angle control using t... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Bayesian gamma mixture model approach to radar target recognition

    Publication Year: 2003, Page(s):1201 - 1217
    Cited by:  Papers (46)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1207 KB) | HTML iconHTML

    This paper develops a Bayesian gamma mixture model approach to automatic target recognition (ATR). The specific problem considered is the classification of radar range profiles (RRPs) of military ships. However, the approach developed is relevant to the generic discrimination problem. We model the radar returns (data measurements) from each target as a gamma mixture distribution. Several different... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Multitarget Bayes filtering via first-order multitarget moments

    Publication Year: 2003, Page(s):1152 - 1178
    Cited by:  Papers (765)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (683 KB) | HTML iconHTML

    The theoretically optimal approach to multisensor-multitarget detection, tracking, and identification is a suitable generalization of the recursive Bayes nonlinear filter. Even in single-target problems, this optimal filter is so computationally challenging that it must usually be approximated. Consequently, multitarget Bayes filtering will never be of practical interest without the development of... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Kalman filter versus IMM estimator: when do we need the latter?

    Publication Year: 2003, Page(s):1452 - 1457
    Cited by:  Papers (51)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (281 KB) | HTML iconHTML

    In this paper, a performance comparison between a Kalman filter and the interacting multiple model (IMM) estimator is carried out for single-target tracking. In a number of target tracking problems of various sizes, ranging from single-target tracking to tracking of about a thousand aircraft for air traffic control, it has been shown that the IMM estimator performs significantly better than a Kalm... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Spatial adaptive subspace detection in OTH radar

    Publication Year: 2003, Page(s):1407 - 1428
    Cited by:  Papers (48)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4455 KB) | HTML iconHTML

    The work presented here addresses the problem of target detection against spatially structured interference composed of jamming plus noise, where for practical reasons, the received target wavefront may also deviate from the traditional plane wave model. This detection problem arises in over-the-horizon (OTH) radar systems where spatially distributed targets often compete for detection against dir... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Single-stage ZVS PWM full-bridge converter

    Publication Year: 2003, Page(s):1122 - 1133
    Cited by:  Papers (45)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (714 KB) | HTML iconHTML

    A new soft-switched ac-dc single-stage pulse width modulation (PWM) full-bridge converter is proposed. The converter operates with zero-voltage switching (ZVS), fixed switching frequency, and with a continuous input current that is sinusoidal and in phase with the input voltage. This is in contrast with other ac-dc single-stage PWM full-bridge converters that are either resonant converters operati... View full abstract»

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

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