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Aerospace and Electronic Systems, IEEE Transactions on

Issue 1 • Date Jan. 2009

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  • Contents

    Publication Year: 2009 , Page(s): c1
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  • [Inside front cover]

    Publication Year: 2009 , Page(s): c2
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  • From the Editor

    Publication Year: 2009 , Page(s): 1
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  • Editors

    Publication Year: 2009 , Page(s): 2
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  • Determination of Spacecraft Landing Footprint for Safe Planetary Landing

    Publication Year: 2009 , Page(s): 3 - 16
    Cited by:  Papers (5)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (2455 KB) |  | HTML iconHTML  

    A methodology is developed based on a ballistic analysis to estimate the landing footprint associated with the powered terminal descent phase of a spacecraft soft landing. The analysis is based on an idealized two-impulse thrust maneuver and leads to an analytical expression for the elliptical boundary of the landing footprint. The objective is to develop a computationally efficient method to esti... View full abstract»

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  • Gabor Filter Approach to Joint Feature Extraction and Target Recognition

    Publication Year: 2009 , Page(s): 17 - 30
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (2174 KB) |  | HTML iconHTML  

    This paper presents a new approach of improving automatic target recognition (ATR) performance by tuning adaptively the Gabor filter. The Gabor filter adopts the network structure of two layers, and its input layer constitutes the adaptive nonlinear feature extraction part, whereas the weights between output layer and input layer constitute the linear classifier. From the statistic property of hig... View full abstract»

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  • Direct Energy Transfer for High Efficiency Photovoltaic Energy Systems Part I: Concepts and Hypothesis

    Publication Year: 2009 , Page(s): 31 - 45
    Cited by:  Papers (12)  |  Patents (2)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (4468 KB) |  | HTML iconHTML  

    This two-part paper presents a comprehensive comparative study on parallel power processing (PPP) and standard schemes in dc/dc converters for photovoltaic (PV) energy systems. It is demonstrated how PPP can improve direct energy transfer (DET), which results in PV systems operating at higher voltage and efficiency. Discussions of the concepts, hypotheses and computer simulations are presented in ... View full abstract»

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  • Direct Energy Transfer for High Efficiency Photovoltaic Energy Systems Part II: Experimental Evaluations

    Publication Year: 2009 , Page(s): 46 - 57
    Cited by:  Papers (6)  |  Patents (2)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (4732 KB) |  | HTML iconHTML  

    This two-part paper presents a comprehensive comparative study on parallel power processing (PPP) and standard schemes in dc/dc converters for photovoltaic (PV) energy systems. It is demonstrated how PPP can improve direct energy transfer (DET), which results in PV systems operating at higher voltage and efficiency. Discussions of the concepts, hypotheses, and computer simulations are presented in... View full abstract»

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  • Partially Adaptive STAP using the FRACTA Algorithm

    Publication Year: 2009 , Page(s): 58 - 69
    Cited by:  Papers (5)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1563 KB) |  | HTML iconHTML  

    A partially adaptive space-time adaptive processor (STAP) utilizing the recently developed FRACTA algorithm is presented which significantly reduces the high computational complexity and large sample support requirements of fully adaptive STAP. Multi-window post-Doppler dimensionality reduction techniques are employed to transform the data prior to application of the FRACTA algorithm. The FRACTA a... View full abstract»

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  • Kalman Filtering with Nonlinear State Constraints

    Publication Year: 2009 , Page(s): 70 - 84
    Cited by:  Papers (31)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (3043 KB) |  | HTML iconHTML  

    An analytic method was developed by D. Simon and T. L. Chia to incorporate linear state equality constraints into the Kalman filter. When the state constraint was nonlinear, linearization was employed to obtain an approximately linear constraint around the current state estimate. This linearized constrained Kalman filter is subject to approximation errors and may suffer from a lack of convergence.... View full abstract»

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  • Application of SMA in Membrane Structure Shape Control

    Publication Year: 2009 , Page(s): 85 - 93
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (3153 KB) |  | HTML iconHTML  

    Shape memory alloy (SMA) actuators have found a wide range of applications due to their unique properties such as high force, long stroke, small size, light weight, and silent operation, etc. However, their strong nonlinear properties make them a challenge to achieve accurate actuations. A simple control strategy is presented based on the idea of adjusting the SMA wire temperature as rapidly as po... View full abstract»

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  • CRB: Sinusoid-Sources' Estimation using Collocated Dipoles/Loops

    Publication Year: 2009 , Page(s): 94 - 109
    Cited by:  Papers (7)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (3853 KB) |  | HTML iconHTML  

    This work derives new asymptotic Cramer-Rao lower bounds (CRB) for the estimation of multiple pure-tone incident signals' azimuth-elevation arrival-angles, polarization parameters, frequencies, amplitudes, and temporal phases-based on data collected by spatially collocated but orthogonally oriented dipoles and/or loops. The incident sources are pure-tones at distinct, deterministic but unknown fre... View full abstract»

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  • Guidance and Control of Missile Interceptor using Second-Order Sliding Modes

    Publication Year: 2009 , Page(s): 110 - 124
    Cited by:  Papers (29)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1955 KB) |  | HTML iconHTML  

    A new smooth second-order sliding mode control (SSOSM) is proposed and proved for a system driven by uncertain sufficiently smooth disturbances. The main target application of this technique, the missile interceptor guidance-control system against targets performing evasive maneuvers, is considered to demonstrate benefits of this design for a two-loop integration of guidance and flight control sys... View full abstract»

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  • Adaptive Two-Stage Extended Kalman Filter for a Fault-Tolerant INS-GPS Loosely Coupled System

    Publication Year: 2009 , Page(s): 125 - 137
    Cited by:  Papers (13)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (3393 KB) |  | HTML iconHTML  

    The well-known conventional Kalman filter requires an accurate system model and exact stochastic information. But in a number of situations, the system model has an unknown bias, which may degrade the performance of the Kalman filter or may cause the filter to diverge. The effect of the unknown bias may be more pronounced on the extended Kalman filter (EKF), which is a nonlinear filter. The two-st... View full abstract»

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  • Simulation Environment for Machine Vision Based Aerial Refueling for UAVs

    Publication Year: 2009 , Page(s): 138 - 151
    Cited by:  Papers (8)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1497 KB) |  | HTML iconHTML  

    The design of a simulation environment is described for a machine vision (MV)-based approach for the problem of aerial refueling (AR) for unmanned aerial vehicles (UAVs) using the USAF refueling method. MV-based algorithms are implemented within the proposed scheme to detect the relative position and orientation between the UAV and the tanker. Within this effort, techniques and algorithms for the ... View full abstract»

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  • Adaptive Phased-Array Tracking in ECM using Negative Information

    Publication Year: 2009 , Page(s): 152 - 166
    Cited by:  Papers (8)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (2611 KB) |  | HTML iconHTML  

    Target tracking with adaptive phased-array radars in the presence of standoff jamming presents both challenges and opportunities to the track filter designer. A measurement likelihood function is derived for this situation which accounts for the effect of both positive and negative contact information. This likelihood function is approximated a? a weighted sum of Gaussian terms consisting of both ... View full abstract»

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  • Electronic Logbook for Space System Integration & Test Operations

    Publication Year: 2009 , Page(s): 167 - 178
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (5484 KB) |  | HTML iconHTML  

    In the highly technological aerospace world, paper is still widely used to document space system integration and test (I&T) operations. E-logbook (electronic logbook) is a new technology designed to replace current documentation processes of space system I&T operations, such as connector mate and demate, flight hardware and flight software component installation, material mixes or electron... View full abstract»

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  • Self-Tuning Multisensor Weighted Measurement Fusion Kalman Filter

    Publication Year: 2009 , Page(s): 179 - 191
    Cited by:  Papers (10)  |  Patents (2)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1035 KB) |  | HTML iconHTML  

    For the multisensor systems with unknown noise variances, based on the solution of the matrix equations for the correlation function, the on-line estimators of the noise variance matrices are obtained, whose consistency is proved using the ergodicity of sampled correlation function. Further, two self-tuning weighted measurement fusion Kalman filters are presented for the multisensor systems with i... View full abstract»

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  • Stable Supervisory-Adaptive Controller for Spinning Satellite using Only Magnetorquers

    Publication Year: 2009 , Page(s): 192 - 208
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (2950 KB) |  | HTML iconHTML  

    In this paper, an adaptive controller for spinning satellites has been designed to achieve high attitude accuracy. In the cases which magnetorquers are used as actuators, the generated torque is perpendicular to the Earth's magnetic field, so a satellite is not completely controllable. In addition, the maximum value of achievable torque is limited due to capacity of magnetorquers. Hence, implement... View full abstract»

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  • Phase-Coded Interrupted CW Signals and Processors

    Publication Year: 2009 , Page(s): 209 - 220
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (3603 KB) |  | HTML iconHTML  

    High resolution radars require signals with large time-bandwidth product such as CW signal and coherent pulse train (CPT). We discuss a phase-coded interrupted CW (ICW) signal which is the combination of CW signal and CPT. Phase codes used here are with perfect periodic autocorrelation. The periodic ambiguity function of ICW signals is studied including single-carrier signal and multi-carrier sign... View full abstract»

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  • New SAR Processor Based on Matched Subspace Detectors

    Publication Year: 2009 , Page(s): 221 - 236
    Cited by:  Papers (8)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (2924 KB) |  | HTML iconHTML  

    This paper deals with a new synthetic aperture radar (SAR) processor based on a subspace detector designed for man-made target (MMT) detection. As MMTs are more accurately described by a set of canonical elements than with isotropic points, we develop a new algorithm which aims at using new models, instead of the isotropic point model commonly used in SAR processors. A subspace detector matched to... View full abstract»

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  • Novel Nonlinear Filtering & Prediction Method for Maneuvering Target Tracking

    Publication Year: 2009 , Page(s): 237 - 249
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1793 KB) |  | HTML iconHTML  

    A new nonlinear filtering and prediction (NFP) algorithm with input estimation is proposed for maneuvering target tracking. In the proposed method, the acceleration level is determined by a decision process, where a least squares (LS) estimator plays a major role in detecting target maneuvering within a sliding window. We first illustrate that the optimal solution to minimize the mean squared erro... View full abstract»

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  • Use of Nonquadratic Regularization in Fourier Imaging

    Publication Year: 2009 , Page(s): 250 - 265
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (4233 KB) |  | HTML iconHTML  

    In many Fourier imaging applications, the presence of unaccounted for amplitude or phase errors in the Fourier domain data can lead to a degraded system impulse response and high sidelobes in the image domain. Historically, many methods for data-driven correction of these effects have been proposed, and numerical optimization of nonquadratic, p-norm image quality metrics has recently emerge... View full abstract»

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  • Fault-Tolerant Encryption for Space Applications

    Publication Year: 2009 , Page(s): 266 - 279
    Cited by:  Papers (6)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (2020 KB) |  | HTML iconHTML  

    This paper is concerned with the use of commercial security algorithms like the Advanced Encryption Standard (AES) in Earth observation small satellites. The demand to protect the sensitive and valuable data transmitted from satellites to ground has increased and hence the need to use encryption on board. AES, which is a very popular choice in terrestrial communications, is slowly emerging as the ... View full abstract»

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  • DOA Estimation for Uniform Linear Array with Mutual Coupling

    Publication Year: 2009 , Page(s): 280 - 288
    Cited by:  Papers (14)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1161 KB) |  | HTML iconHTML  

    An algorithm is presented for direction-of-arrival (DOA) estimation in the presence of unknown mutual coupling based on the generalized eigenvalues utilizing signal subspace eigenvectors (GEESE) algorithm for uniform linear array (ULA). It is not an iterative algorithm, and a spectral peak search is not required. The DOA can be accurately estimated without any calibration sources since the effects... 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