IEEE Transactions on Aerospace and Electronic Systems

Volume 36 Issue 4 • Oct. 2000

Filter Results

Displaying Results 1 - 25 of 43
  • Comment on "Steady-state tracking with LFM waveforms"

    Publication Year: 2000, Page(s):1406 - 1407
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (71 KB)

    The purpose of this note is to point out that, if appropriate normalizations are applied, the numerical data presented by W. Wong & W.D. Blair [ibid. vol.36, pp.701-709 (2000)] has much broader applicability than is implied there. View full abstract»

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

    Publication Year: 2000, Page(s):1 - 6
    Request permission for commercial reuse | PDF file iconPDF (565 KB)
    Freely Available from IEEE
  • Subject index

    Publication Year: 2000, Page(s):6 - 26
    Request permission for commercial reuse | PDF file iconPDF (1902 KB)
    Freely Available from IEEE
  • Performance of split-window multipass-mean noise spectral estimators

    Publication Year: 2000, Page(s):1360 - 1370
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (808 KB)

    Spectrogram background normalization for narrowband passive acoustic detection systems has a long history, and the split-window three-pass mean noise spectral estimator (S3PM NSE) is currently a standard in this regard. As yet, however, there is no analytical design methodology for choosing the window parameters and shearing thresholds for the S3PM NSE. That deficiency is remedied here by deriving... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Adaptive fuzzy mixed H2/H attitude control of spacecraft

    Publication Year: 2000, Page(s):1343 - 1359
    Cited by:  Papers (36)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1140 KB)

    This paper presents an adaptive fuzzy mixed H2/H∞ attitude control of nonlinear spacecraft systems with unknown or uncertain inertia matrix and external disturbances. Using an adaptive fuzzy approximation method, an uncertain nonlinear model is estimated. Then, by a mixed H2 and H∞ attitude control design, the effect of external disturbance a... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Ratio of Gaussian PIM to two-carrier PIM

    Publication Year: 2000, Page(s):1336 - 1342
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (444 KB)

    Passive intermodulation (PIM) products falling into a satellite's receiver can adversely affect its gain/system temperature (G/T). The PIM when all carriers are active and modulated, can be simulated by a flat power spectrum. The ratio of the resulting distortion to a two-carrier measurement is calculated in this work. For PIM not to degrade the satellite's G/T, it should be 20 dB or more below th... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Robot-aided remote inspection experiment on STS-85

    Publication Year: 2000, Page(s):1290 - 1297
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1044 KB)

    The results are presented for the robot-aided spacecraft inspection experiments using a flaw detection algorithm called multi-images overcast (MIO), which were conducted as an extension of NASDA's Manipulator Flight Demonstration mission installed on space shuttle mission STS-85. These experiments are the first step towards research and development of the Orbital Maintenance System to support spac... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Performance of decentralized L-CFAR detection in inhomogeneous background

    Publication Year: 2000, Page(s):1414 - 1423
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (740 KB)

    The problem of decentralized constant false alarm rate (CFAR) detection, with L-CFAR remote sensors, is considered. Following a previous paper, concerning the design and the analysis of such detection structure in homogeneous environment, we now assume that a detector, designed to operate with homogeneous background, is affected instead by clutter edges and secondary targets entering the local sen... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Recursive control design for low frequency disturbance accommodation [and application to satellite attitude control]

    Publication Year: 2000, Page(s):1330 - 1335
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (424 KB)

    The problem of state estimation and regulation in the presence of uncertainty and low frequency disturbance is dealt with. A controller design method, based on input-output histories as well as a nominal model to attenuate the effects of the uncertainty and the disturbance is proposed. The state vector is predicted recursively using a past state vector, and a past input vector. By this property, t... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Robust sliding-mode control for the uncertain MIMO aircraft model F-18

    Publication Year: 2000, Page(s):1127 - 1141
    Cited by:  Papers (49)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1068 KB)

    Robust flight control laws based on variable structure control (VSC) theory and Lyapunov V-function method are designed for a simplified aircraft model F-18. A min-max control (MMC) and VSC laws are derived, for multi-input multi-output (MIMO) systems with plant uncertainties and input disturbance. Two types of robust feedback controllers MMC and VSC for uncertain MIMO systems are considered. For ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Performance of 10- and 20-target MSE classifiers

    Publication Year: 2000, Page(s):1279 - 1289
    Cited by:  Papers (26)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1608 KB)

    MIT Lincoln Laboratory is responsible for developing the ATR (automatic target recognition) system for the DARPA-sponsored SAIP program; the baseline ATR system recognizes 10 GOB (ground order of battle) targets; the enhanced version of SAIP requires the ATR system to recognize 20 GOB targets. This paper presents ATR performance results for 10- and 20-target mean square error (MSE) classifiers usi... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Starter/generator employing resonant-converter-fed induction machine. II. Hardware prototype

    Publication Year: 2000, Page(s):1319 - 1329
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (860 KB)

    The feasibility of operation of a new procedure to start a jet engine (JE) and to generate power by means of a single induction machine (IM) directly coupled to the turbine has been shown by means of a hardware prototype. An introduction, background, operation principle of this type of a system and software simulation portion was presented in Part I. Both in software simulation and in the experime... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Analysis of double-layer capacitors supplying constant power loads

    Publication Year: 2000, Page(s):1439 - 1443
    Cited by:  Papers (43)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (412 KB)

    Double-layer capacitors are a recent technology based on the well-known electrochemical phenomenon of extremely high capacitance/unit area in an electrode-electrolyte interface and the high surface area achievable in activated carbon fibers. Capacitances are available in the range of a few farads to a few hundred farads. The energy stored in a bank of double-layer capacitors is related to the capa... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Fast converging adaptive processor or a structured covariance matrix

    Publication Year: 2000, Page(s):1115 - 1126
    Cited by:  Papers (95)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (784 KB)

    The use of adaptive linear techniques to solve signal processing problems is needed particularly when the interference environment external to the signal processor (such as for a radar or communication system) is not known a priori. Due to this lack of knowledge of an external environment, adaptive techniques require a certain amount of data to cancel the external interference. The number of stati... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Soft-switching single-stage AC-to-DC converter with low harmonic distortion

    Publication Year: 2000, Page(s):1190 - 1203
    Cited by:  Papers (4)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1048 KB)

    A 1 φ high-frequency (HF) transformer isolated, soft-switching single-stage ac-dc converter with low line-current harmonic distortion is presented. Its operation is explained with equivalent circuits for the various intervals. The converter is analyzed and design curves are obtained. An optimization parameter is introduced and a systematic design procedure is illustrated with a design example.... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Three-dimensional trajectory estimation from image position and velocity

    Publication Year: 2000, Page(s):1075 - 1089
    Cited by:  Papers (16)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (868 KB)

    A recursive algorithm for estimating the three-dimensional trajectory and structure of a moving rigid object in an image sequence has been previously developed by Broida, Chandrashekhar, and Chellappa [1990]. Since then, steady advances have occurred in the calculation of optical flow. This work improves 3D motion trajectory and structure estimation by incorporating optical flow into the estimatio... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Coarse quantization for data compression in coherent location systems

    Publication Year: 2000, Page(s):1269 - 1278
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (812 KB)

    When emitter location systems measure time-difference-of-arrival (TDOA) and differential Doppler (DD) by coherently cross-correlating the signal pairs, data compression techniques are needed to facilitate data transfer of one of the signals to the receiving site of the other signal. Two block-adaptive quantization schemes are analyzed here to determine their impact on the signal-to-noise ratio (SN... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Experimental verification of noncoherent Doppler tracking at the Deep Space Network

    Publication Year: 2000, Page(s):1401 - 1406
    Cited by:  Papers (8)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (496 KB)

    A recently developed noncoherent Doppler tracking technique has been experimentally verified at the NASA Deep Space Network (DSN) Test Facility. This technique permits highly accurate two-way Doppler measurements to he made with a simple transceiver system. The accuracy goal of 0.1 mm/s has been verified as well as the compatibility of the technique with the equipment, practices, and the radiometr... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Performance assessment of CFAR processors in Pearson-distributed clutter

    Publication Year: 2000, Page(s):1377 - 1386
    Cited by:  Papers (19)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (728 KB)

    An analytical study on the performance of three existing classes of constant false alarm rate (CFAR) detectors operating in heavy tailed distributed data is presented. In particular, we study the performance of the cell averaging, order statistics, and p-percent truncated mean CFAR processors when the output measurements of the square-law detector can be modeled as positive alpha-stable (PαS... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Starter/generator employing resonant-converter-fed induction machine. I. Analysis

    Publication Year: 2000, Page(s):1309 - 1328
    Cited by:  Papers (17)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (784 KB)

    A new procedure to start a jet engine (JE) and to generate power by means of a single induction machine (IM) directly coupled to the turbine is presented. The JE is brought to an initial speed by the motoring operation of the IM. Later, the IM is taken into generating mode and the turbine is applied to its excitation. The turbine catches up and starts to drive the induction generator (IG). The gen... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Performance analysis of two adaptive radar detectors against non-Gaussian real sea clutter data

    Publication Year: 2000, Page(s):1429 - 1439
    Cited by:  Papers (61)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (932 KB)

    The performance of two adaptive detection schemes developed in the literature, Kelly's generalized likelihood ratio test (GLRT) and the adaptive linear-quadratic (ALQ) detector, are tested on real sea clutter data recorded by the IPIX experimental radar. The results of first- and second-order statistical analyses performed on two data sets are reported. Amplitude analysis has been carried out by c... View full abstract»

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

    Publication Year: 2000, Page(s):1149 - 1166
    Cited by:  Papers (16)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1616 KB)

    Search theory is the discipline that studies the problem of how best to search for an object when the amount of searching efforts is limited and only probabilities of the possible position of the object are given. Then, the problem is to find the optimal distribution of this total effort that maximizes the probability of detection. Although the general formalism of search theory will be used subse... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Navigation system design using time-varying complementary filters

    Publication Year: 2000, Page(s):1099 - 1114
    Cited by:  Papers (40)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1088 KB)

    A new methodology for the design of navigation systems for autonomous vehicles is introduced. Using simple kinematic relationships, the problem of estimating the velocity and position of an autonomous vehicle is solved by resorting to special bilinear time-varying filters. These are the natural generalization of linear time-invariant complementary filters that are commonly used to properly merge s... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • On detection using filter banks and higher order statistics

    Publication Year: 2000, Page(s):1179 - 1189
    Cited by:  Papers (6)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (804 KB)

    We suggest a method, based on the use of filter bank and higher order statistics (cumulants), for detection of transient signals. The method first uses a bandpass filter bank, which separates the spectrum of the observed signal into narrow frequency bands. Each subfilter of the filter bank is then followed by a cumulant estimator, and thereby suppressing colored noise. By selecting those subfilter... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Object-based SAR image compression using vector quantization

    Publication Year: 2000, Page(s):1036 - 1046
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1164 KB)

    A simple and elegant algorithm is presented to encode images with rich content, which allows easy access to various objects. An object-plane-based encoding method for compression of synthetic aperture radar (SAR) imagery is developed, with different object planes for target classes and background. A variable-rate residual vector quantization (VQ) algorithm is developed to encode the background inf... 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