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IEEE Transactions on Aerospace and Electronic Systems

Issue 3 • Date May 1987

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Displaying Results 1 - 25 of 27
  • 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): 297
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  • Tracking a Maneuvering Target Using Input Estimation

    Publication Year: 1987, Page(s):298 - 310
    Cited by:  Papers (164)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2201 KB)

    The conventional Kalman tracking filter incurs mean tracking errors in the presence of a pilot-induced target maneuver. Chan,Hu, and Plant proposed a solution to this problem which used themean deviations of the residual innovation sequence to make corrections to the Kalman filter. This algorithm is further developedhere for the case of a one-dimensional Kalman filter, for which an Implementable c... View full abstract»

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  • New Power Processor Interfaces MMS Power Module Outputs

    Publication Year: 1987, Page(s):311 - 316
    Cited by:  Papers (2)  |  Patents (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1900 KB)

    A description of a new power processor to interface the outputsfrom two or more multimission modular spacecraft (MMS) modularpower system (MPS) modules to the spacecraft payload is presented.Also included are an introduction describing the circumstances thatled to this power processor, and material concerning analysisresults, load programmability, and salient features, includingefficiency and weig... View full abstract»

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  • Singularities of Euler and Roll-Pitch-Yaw Representations

    Publication Year: 1987, Page(s):317 - 324
    Cited by:  Papers (17)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1874 KB)

    Euler and roll-pitch-yaw angles are routinely used to represent the orientation of rigid bodies in aerospace, navigation, and robotics because they minimize the dimensionality of the control problem.Both representations, however, introduce unwarranted mathematical singularities which are identified in this paper.Trajectory-tracking algorithms break down at singularities and cause loss of control. ... View full abstract»

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  • Ionospheric Time-Delay Algorithm for Single-Frequency GPS Users

    Publication Year: 1987, Page(s):325 - 331
    Cited by:  Papers (256)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1946 KB)

    The goal in designing an ionospheric time-delay correctionalgorithm for the single-frequency global positioning system userwas to include the main features of the complex behavior of theionosphere, yet require a minimum of coefficients and usercomputational time, while still yielding an rms correction of at least50 percent. The algorithm designed for this purpose, andimplemented in the GPS satelli... View full abstract»

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  • Evaluation of GPS Ionospheric Time-Delay Model

    Publication Year: 1987, Page(s):332 - 338
    Cited by:  Papers (25)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1983 KB)

    For single-frequency global positioning system (GPS) users,uncompensated ionospheric GPS-signal time delay is the largestsource of range-measurement error, contributing as much as 100 m.To improve performance for these users, a numeric model of theionospheric range error was incorporated into the GPS system. Thispaper presents an assessment of that model in which actualionospheric time-delay value... View full abstract»

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  • A Modified Discrete Karhunen-Loeve Random Field Estimator

    Publication Year: 1987, Page(s):339 - 348
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1980 KB)

    Based upon the modified Karhunen-Loeve model of the gravity disturbance vector proposed by us recently, a corresponding Karhunen-Loeve random field estimator is developed in this paper for a two-dimensional grid of gravity data in a local finite region.The new eigenvectors obey the "required" orthogonality relations on the chosen grid provided the KL expansion is now separated into odd and even in... View full abstract»

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  • Frequency Domain Error Correction for Monopulse Radar Signals

    Publication Year: 1987, Page(s):349 - 354
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1284 KB)

    Angle-measurement error of a coherent monopulse radar signalresulting from imbalances between in-phase and quadraturecomponents, as well as between sigma and delta channels, arecorrected in a simple procedure. No correction is needed for I,Qimbalances in the time domain [1]. Instead, a postintegrationcorrection is performed. This reduces the number of calibrationoperations of the monopulse signal ... View full abstract»

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  • Simplified Solution for a Class of Fading Memory Filters

    Publication Year: 1987, Page(s):355 - 360
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1084 KB)

    A fading memory filter is a least squares estimator (LSE) thatapplies an exponentially decaying weight to past measurements.When compared with a standard Kalman filter, its key advantagesare asymptotic stability and reduced sensitivity to modeling errors.This paper derives a simple solution for a class of fading memoryfilters, resulting in a reduction in computational complexity. Steadystate filte... View full abstract»

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  • Simulation of the Canadian GOES Signal Processor

    Publication Year: 1987, Page(s):361 - 370
    Cited by:  Papers (5)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1931 KB)

    An international experiment is being conducted to assess the use of geostationary spacecraft to relay 406 MHz distress beacon signals. The development is described of a signal processor that will search a nominal 10 kHz portion of the 406 MHz band, detect anddemodulate a small number of beacons, and produce an alertmessage with low probability of message error. It is shown that thenominal composit... View full abstract»

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  • Nonlinear Adaptive Attitude Control of Spacecraft

    Publication Year: 1987, Page(s):371 - 379
    Cited by:  Papers (27)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1931 KB)

    A model reference adaptive control law is presented for largeangle rotational maneuvers of spacecraft using reaction jets. It isassumed that the various parameters of the spacecraft arecompletely unknown, and unknown but bounded disturbancetorques are acting on the spacecraft. The controller includes adynamic system in the feedback path. Simulation results arepresented to show that fast, large ang... View full abstract»

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  • Robust Nonlinear Attitude Control of Flexible Spacecraft

    Publication Year: 1987, Page(s):380 - 387
    Cited by:  Papers (39)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1840 KB)

    This paper presents an approach to large-angle rotationalmaneuvers of a spacecraft-beam-tip body configuration based onnonlinear invertibility and linear feedback stabilization. A controllaw Ud is derived for the decoupled control of attitude angles, lateralelastic deflections, slopes due to bending and angular deflection dueto torsion at the tip of the beam using torquers and force actuators.For ... View full abstract»

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  • Output Power Controller for a Wind-Driven Induction Generator

    Publication Year: 1987, Page(s):388 - 401
    Cited by:  Papers (22)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2837 KB)

    A constant stator power output controller for a wind-driven grid-connected induction generator is described. The load torque of the generator is controlled by varying the rotor resistance electronically. A dynamic model for the wind energy conversion system is proposed for both controlled and uncontrolled operation.The model is then used to predict the changes in shaft speed,turbine torque, and st... View full abstract»

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  • Information for authors

    Publication Year: 1987, Page(s): 402
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  • Augmenting the Linear Variance Equation

    Publication Year: 1987, Page(s):403 - 405
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (353 KB)

    A technique is developed to convert the covariance analysis ofcertain time-varying linear systems into time-invariant form, thusallowing an arbitrary time step for the solution of the differentialequations. The result is accomplished by augmenting the linearvariance equation and augmenting the state vector if necessary. Themethod is illustrated with an example showing the covariancepropagation of ... View full abstract»

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  • Some Limiting Forms of an Innovations-Based Discrete-Time Detection Algorithm

    Publication Year: 1987, Page(s):405 - 411
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1101 KB)

    The simplicity and breadth of application inherent in a log likelihood ratio (LLR) test based on the use of the innovations representation in discrete-time detection theory are demonstrated.In particular, it is shown that the innovations-based detection algorithm (IBDA) resulting from this theory contains the solutions to several well-known Gaussian detection problems as special cases. View full abstract»

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  • Comments on "The Genesis of Transit"

    Publication Year: 1987, Page(s): 411
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  • Corrections to "Decentralized Filtering and Redundancy Management for Multisensor Navigation"

    Publication Year: 1987, Page(s): 412
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  • Corrections to "Radar Target Pointing Error Reduction Using Extended Kalman Filtering"

    Publication Year: 1987, Page(s): 412
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  • Corrections to "Frequency-Domain Analysis of Switching Closed-Loop Regulators"

    Publication Year: 1987, Page(s): 412
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  • Information for authors

    Publication Year: 1987, Page(s): 413
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  • Annual Combined Index to IEEE Publications [advertisement]

    Publication Year: 1987, Page(s): 413-a
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  • IEEE copyright form

    Publication Year: 1987, Page(s):413-b - 413-c
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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