IEEE Transactions on Aerospace and Electronic Systems

Issue 4 • July 1985

Filter Results

Displaying Results 1 - 25 of 25
  • Table of contents

    Publication Year: 1985, Page(s): c1
    Request permission for commercial reuse | |PDF file iconPDF (773 KB)
    Freely Available from IEEE
  • IEEE Aerospace and Electronic Systems Society

    Publication Year: 1985, Page(s): c2
    Request permission for commercial reuse | |PDF file iconPDF (194 KB)
    Freely Available from IEEE
  • From the Editors

    Publication Year: 1985, Page(s): 449
    Request permission for commercial reuse | |PDF file iconPDF (51 KB)
    Freely Available from IEEE
  • The Technology Challenge Facing EW Today

    Publication Year: 1985, Page(s):450 - 458
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (2579 KB)

    When you're going to give the first talk in the morning on the third day of a three-day conference, and the banquet, followed by the traditional partying, takes place the night before, you take unusual measures to get and keep the attention of the audience (such as it is). If the serious reader will skim through the various attempts at humor, he will find some thoughts that I believe are important... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Faraday Loss for L-Band Radar and Communications Systems

    Publication Year: 1985, Page(s):459 - 469
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (2775 KB)

    The mechanism of Faraday rotation as it affects radar and communication propagation has been extensively treated (1, 7). The purpose of this paper is to point out the magnitude of the effect and its possible consequences which have not been appreciated. Contrary to what many believe, the two-way Faraday rotation angle and loss can be large at L-band for ground-based, linearly polarized radar syste... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Two Methods of Ambiguity Resolution in Pulse Doppler Weather Radars

    Publication Year: 1985, Page(s):470 - 483
    Cited by:  Papers (32)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (2850 KB)

    A comparison is made of the performance of a weather Doppler radar with a staggered pulse repetition time and a radar with a random (but known) phase. As a standard for this comparison, the specifications of the forthcoming next generation weather radar (NEXRAD) are used. A statistical analysis of the spectral moment estimates for the staggered scheme is developed, and a theoretical expression for... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Determination of the Number of Cells in a Stepped Sine Wave Inverter for Equal Charge Transfer

    Publication Year: 1985, Page(s):484 - 489
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (1362 KB)

    The synthesis of an inverter sine wave output voltage by a staircase wave shape of low level voltage sources (cells) is accomplished by combining the cells in series at specific time intervals. Different cells of the inverter are then connected to the load for different time durations which results in unequal discharging of the cells. In order for the cells to transfer equal charge during the syst... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A Real-Time Statistical Radar Target Model

    Publication Year: 1985, Page(s):490 - 507
    Cited by:  Papers (12)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (2604 KB)

    Radar glint arises from the spatial phase perturbations of the radar signal echoed from a complex target. The glint phenomenon is closely related to the target radar cross section (RCS). This relationship plays a significant part in modern missile seeker signal processing. We present a statistical glint/RCS target model for realtime simulation of target signatures. Particular emphasis is placed up... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • An Alternative Method for Analyzing the Double Threshold Detector

    Publication Year: 1985, Page(s):508 - 513
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (1301 KB)

    An alternative method for analyzing the performance of a double threshold or M-out-of-N detector is discussed. Detection performance for the suggested method is based on the probability that a return crosses the threshold for the Mth time (a detection is declared) on the kth return or look. It is shown that this formulation has many advantages, as compared with the conventional method of analysis ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Improvement of Satellite Tracking Accuracy Using Optical Observations

    Publication Year: 1985, Page(s):514 - 521
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (1706 KB)

    A method to improve satellite tracking accuracy is presented and discussed theoretically and experimentally in terms of two parts: correction for errors of the tracking system and correction of satellite orbit predictions. In the first part, it is concluded that the pointing error of the tracking system can be determined accurately using data from stellar observations, so that correction is possib... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Reliability of Velocity Measurement by MTD Radar

    Publication Year: 1985, Page(s):522 - 528
    Cited by:  Papers (11)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (1527 KB)

    For an ATC radar with MTD-type of signal processing, admissible PRF stagger ratios for expanding the unambiguous velocity interval are derived, and formulas and curves for the parameters describing the reliability of velocity information, based on simulation, are presented. In a noise-only environment and for a Swerling 1 target with S/N resulting in Pd = 90 percent, there is a probability of > 50... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Adaptive Tracker Field-of-View Variation Via Multiple Model Filtering

    Publication Year: 1985, Page(s):529 - 539
    Cited by:  Papers (36)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (2246 KB)

    Adaptive estimation using multiple model filtering is investigated as a means of changing the field of view as well as the bandwidth of an infrared image tracker when target acceleration can vary over a wide range. The multiple models are created by tuning filters for best performance at differing conditions of exhibited target behavior and differing physical size of their respective fields of vie... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Scanning, Tracking, and Mapping State Variable Estimation Algorithms

    Publication Year: 1985, Page(s):540 - 546
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (1396 KB)

    Recursive state equation estimation algorithms are derived to determine optimal estimation error covariance and state estimate for a linear dynamic system, driven by time-varying and positionverying (or angle-varying) functions whose a priori covariance are described. Retracing the same trajectory with the system measuring device causes the position varying function to repeat and can significantly... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Adaptive Forward Error Control for Digital Satellite Systems

    Publication Year: 1985, Page(s):547 - 558
    Cited by:  Papers (2)  |  Patents (22)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (2350 KB)

    Two hybrid schemes of time-frequency resource sharing to increase the rain margin of Ku-and Ka-band satellite systems are proposed. Scheme 1 requires sharing a small pool of bandwidth for adaptive forward error control coding, sharing a small pool of time frame for rate reduction, and sharing a portion of low frequency time-division multiple access (TDMA) back-up frame for downlink transmission to... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Two Methods of Spectral Estimation for SARSAT Signals

    Publication Year: 1985, Page(s):559 - 568
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (1486 KB)

    Search and rescue satellite aided tracking (SARSAT) depends on the processing of emergency locator transmitter (ELT) signals which are received by a satellite in low polar orbit. Since the signal from a distressed vehicle is normally immersed in a background of other ELT signals (false alarms), interference, and noise, different methods of spectral estimation can provide advantages in estimating c... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Observability of Relative Navigation Using Range-Only Measurements

    Publication Year: 1985, Page(s):569 - 581
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (2058 KB)

    A simulation tool is described which is capable of determining the observability of various fleet configurations and maneuvers in a relative navigation environment. The motion of the relative grid established by the navigation controller is explicitly modeled as a function of the errors in his dead-reckoning sensors. The simulation uses centralized, optimal processing of an extended Kalman filter.... View full abstract»

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

    Publication Year: 1985, Page(s): 582
    Request permission for commercial reuse | |PDF file iconPDF (116 KB)
    Freely Available from IEEE
  • Corrections to and Comments on "Simple Expressions for Determining Radar Detection Thresholds"

    Publication Year: 1985, Page(s):583 - 584
    Cited by:  Papers (1)
    Request permission for commercial reuse | |PDF file iconPDF (268 KB)
    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Comments on "A Novel Feedforward Compensation Canceling Input Filter-Regulator Interaction"

    Publication Year: 1985, Page(s):584 - 587
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (612 KB)

    This correspondence clarifies the conditions under which the canceling of the input filter dynamics of a buck regulator by partial state feedback can be performed. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • An Alternative Interpretation of the Two-Loop, Adaptive-Control Strategy of Lee and Yu

    Publication Year: 1985, Page(s):587 - 589
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (417 KB)

    The two-loop, adaptive-control strategy employed by Lee and Yu is shown to consist of adjustment of loop gains so that no output feedback occurs. This means that in so far as the adaptive feature is required, both loops could be dispensed with and feedback applied locally around the input modulator. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Correction to "Monopulse Radar Angle Tracking Accuracy with Sum Channel Limiting"

    Publication Year: 1985, Page(s): 589
    Request permission for commercial reuse | |PDF file iconPDF (60 KB)
    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Call for Pioneer Award Nominations

    Publication Year: 1985, Page(s): 589a
    Request permission for commercial reuse | |PDF file iconPDF (108 KB)
    Freely Available from IEEE
  • IEEE copyright form

    Publication Year: 1985, Page(s):589b - 589c
    Request permission for commercial reuse | |PDF file iconPDF (266 KB)
    Freely Available from IEEE
  • IEEE Aerospace and Electronic Systems Society Organization

    Publication Year: 1985, Page(s): 589d
    Request permission for commercial reuse | |PDF file iconPDF (135 KB)
    Freely Available from IEEE
  • IEEE Aerospace and Electronic Systems Society

    Publication Year: 1985, Page(s): 589e
    Request permission for commercial reuse | |PDF file iconPDF (602 KB)
    Freely Available from IEEE

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