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Aerospace and Electronic Systems, IEEE Transactions on

Issue 4 • Date OCTOBER 2013

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Displaying Results 1 - 25 of 62
  • Table of Contents

    Publication Year: 2013 , Page(s): c1
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    Freely Available from IEEE
  • [Front inside cover]

    Publication Year: 2013 , Page(s): c2
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    Freely Available from IEEE
  • From the Editor [announcement of new Technical Editor]

    Publication Year: 2013 , Page(s): 1
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    Freely Available from IEEE
  • Low-Complexity Constrained Adaptive Reduced-Rank Beamforming Algorithms

    Publication Year: 2013 , Page(s): 2114 - 2128
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1790 KB) |  | HTML iconHTML  

    A reduced-rank framework with set-membership filtering (SMF) techniques is presented for adaptive beamforming problems encountered in radar systems. We develop and analyze stochastic gradient (SG) and recursive least squares (RLS)-type adaptive algorithms, which achieve an enhanced convergence and tracking performance with low computational cost, as compared with existing techniques. Simulations s... View full abstract»

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  • Vision-Based Estimation of Airborne Target Pseudobearing Rate using Hidden Markov Model Filters

    Publication Year: 2013 , Page(s): 2129 - 2145
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (2997 KB) |  | HTML iconHTML  

    The problem of estimating pseudobearing rate information of an airborne target based on measurements from a vision sensor is considered. Novel image speed and heading angle estimators are presented that exploit image morphology, hidden Markov model (HMM) filtering, and relative entropy rate (RER) concepts to allow pseudobearing rate information to be determined before (or whilst) the target track ... View full abstract»

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  • Equality Constrained Robust Measurement Fusion for Adaptive Kalman-Filter-Based Heterogeneous Multi-Sensor Navigation

    Publication Year: 2013 , Page(s): 2146 - 2157
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (2103 KB) |  | HTML iconHTML  

    Constraints can provide additional aids to a multi-sensor integrated navigation system and hence can increase accuracy of the solution and enhance reliability of the system. To integrate the constraints with the data from the sensors, the traditional integration Kalman filter (IKF) needs to be reconstructed. A new algorithm, the so-called constrained adaptive robust integration Kalman filter (CARI... View full abstract»

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  • Oscillator Frequency Offset Impact on Software GPS Receivers and Correction Algorithms

    Publication Year: 2013 , Page(s): 2158 - 2178
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (5394 KB) |  | HTML iconHTML  

    Software-based Global Positioning System (GPS) receivers have been recognized as an effective research platform in recent years. The impact of oscillator frequency offset on hardware receiver and software receiver signal processing is contrasted based on a refined signal model and cross correlation function (CCF) analysis. Several online clock error correction algorithms are presented to produce u... View full abstract»

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  • Widely Separated MIMO versus Multistatic Radars for Target Localization and Tracking

    Publication Year: 2013 , Page(s): 2179 - 2194
    Cited by:  Papers (3)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (2259 KB) |  | HTML iconHTML  

    The detection, localization, and tracking performance of multiple input-multiple output (MIMO) radars with widely separated antennas is investigated and compared with that of multistatic radar systems. A multiple-hypothesis (MH)-based algorithm is proposed for multitarget localization for the case where extended targets with multiple spatial reflections become unobservable in certain transmitter-r... View full abstract»

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  • Situation Assessment: An End-to-End Process for the Detection of Objects of Interest

    Publication Year: 2013 , Page(s): 2195 - 2210
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (5014 KB) |  | HTML iconHTML  

    Semiautomatic approaches are developed for wide area situation assessment in near-real-time. The two-step method consists of two granularity levels. The first entity assessment uses a new multi-target tracking (MTT) algorithm (hybridization of Gaussian mixture-Cardinalized probability hypothesis density (GM-CPHD) filter and multiple hypothesis tracker (MHT) with road constraints) on ground moving ... View full abstract»

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  • Rank-Order Adaptive CFAR: Performance Bounds and Efficient Implementation

    Publication Year: 2013 , Page(s): 2211 - 2224
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1938 KB) |  | HTML iconHTML  

    The uniformly most powerful (UMP) rank-order analog to the cell-averaging constant false alarm rate (CA-CFAR) detector is developed for both the single and multi-scan case. The detector is capable of false alarm control in arbitrary noise while achieving maximum detection probability for the case of a Swerling II target in Gaussian noise. Relationships with earlier tests are discussed. A divide-an... View full abstract»

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  • Terrain Effect Analysis for Cross-Track Stereo SAR Elevation Estimation

    Publication Year: 2013 , Page(s): 2225 - 2234
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1628 KB) |  | HTML iconHTML  

    We analyzed the correlation metric used in cross-track stereo SAR elevation estimation. We showed the resulting relationship that arises between false alarms and missed detections, for a range of processing and terrain conditions. We also derived and illustrated constraints between terrain slope, feasible height resolution, and SAR collection geometry. View full abstract»

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  • The ML-PMHT Multistatic Tracker for Sharply Maneuvering Targets

    Publication Year: 2013 , Page(s): 2235 - 2249
    Cited by:  Papers (3)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (4832 KB) |  | HTML iconHTML  

    The maximum likelihood probabilistic multi-hypothesis tracker (ML-PMHT) is applied to a benchmark multistatic active sonar scenario with multiple targets, multiple sources, and multiple receivers. We first compare the performance of the tracker on this scenario when it is applied in Cartesian measurement space, a typical implementation for many trackers, against its performance in delay-bearing me... View full abstract»

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  • GPS Spoofing Detection via Dual-Receiver Correlation of Military Signals

    Publication Year: 2013 , Page(s): 2250 - 2267
    Cited by:  Papers (5)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (2131 KB) |  | HTML iconHTML  

    Cross-correlation of unknown encrypted signals between two Global Navigation Satellite System (GNSS) receivers is used for spoofing detection of publicly-known signals. This detection technique is one of the strongest known defenses against sophisticated spoofing attacks if the defended receiver has only one antenna. The attack strategy of concern overlays false GNSS radio-navigation signals on to... View full abstract»

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  • Direction-of-Arrival Estimation in Subarrays-Based Linear Sparse Arrays with Gain/Phase Uncertainties

    Publication Year: 2013 , Page(s): 2268 - 2280
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1825 KB) |  | HTML iconHTML  

    Sparse arrays are of great interest in practical applications owing to their enlarged array apertures, which enable us to achieve better performance in direction finding. A kind of linear sparse arrays (LSpAs) composed of multiple uniform linear subarrays (ULSAs) with gain/phase uncertainties is considered. The problem of direction-of-arrival (DOA) estimation using such kinds of arrays is addresse... View full abstract»

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  • Noise Subspace-Based Iterative Technique for Direction Finding

    Publication Year: 2013 , Page(s): 2281 - 2295
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (2236 KB) |  | HTML iconHTML  

    In the area of array signal processing, direction of arrival (DoA) estimation is a widely studied topic. In this estimation process the noise subspace of the received signal covariance matrix is often utilized and obtained through numerical methods. We explicitly derive an algebraic expression of the noise subspace when the number of signal sources present is less than the number of elements of a ... View full abstract»

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  • GBAS Reference Receiver Clock Adjustment Effects on Continuity and Integrity Performance

    Publication Year: 2013 , Page(s): 2296 - 2309
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (6533 KB) |  | HTML iconHTML  

    Ground-based augmentation system (GBAS) reference stations provide pseudo-range corrections (PRCs) and range rate corrections (RRCs) for visible GPS satellites along with the standard deviations of the PRC errors (σpr_gnd) and B-values for the reference receivers. When generating PRCs, a GBAS should adjust the reference receiver clock bias to limit the PRC values within a certain... View full abstract»

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  • Polar-Interval-Based Localization in Mobile Sensor Networks

    Publication Year: 2013 , Page(s): 2310 - 2322
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (3145 KB) |  | HTML iconHTML  

    The problem of localization in uncontrolled mobility sensor networks (MSN) is considered. Based on connectivity measurements the problem is solved using polar intervals. Computation is performed, in several polar coordinate systems (PCSs), using both polar coordinates and interval analysis. Position estimates are thus partial rings enclosing the exact solution of the problem. Simulation results co... View full abstract»

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  • Multi-Sensor Fusion and Fault Detection using Hybrid Estimation for Air Traffic Surveillance

    Publication Year: 2013 , Page(s): 2323 - 2339
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (2812 KB) |  | HTML iconHTML  

    Data fusion for multiple surveillance sensors in air traffic control (ATC) is studied. The goal is to build up software redundancy for better target tracking accuracy and robustness against sensor faults. A set of hybrid estimation algorithms for different sensors is designed to run in parallel for tracking aircraft with changing flight modes. The proposed sensor fusion algorithm combines the esti... View full abstract»

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  • FEC Systems for Aeronautical Telemetry

    Publication Year: 2013 , Page(s): 2340 - 2352
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (2616 KB) |  | HTML iconHTML  

    We consider the design of capacity-approaching forward error correction (FEC) systems for use in the aeronautical telemetry environment. The modulation format is the bandwidth-efficient telemetry-group version of shaped-offset quadrature phase-shift keying (SOQPSK-TG). The FEC codes are a low-density parity-check (LDPC) code and a serially concatenated convolutional code (SCCC). The block structur... View full abstract»

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  • Channel-Aware Tracking in Multi-Hop Wireless Sensor Networks with Quantized Measurements

    Publication Year: 2013 , Page(s): 2353 - 2368
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1737 KB) |  | HTML iconHTML  

    A channel-aware target tracking approach is proposed for multi-hop sensor networks based on M-bit quantized measurements. For two cases where the fusion center has the knowledge of the instantaneous fading channel gains and where only the knowledge of fading channel statistics is available, particle filtering (PF)-based channel-aware tracking algorithms are developed. Furthermore, the posterior Cr... View full abstract»

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  • Eigen-Template-Based HRR-ATR with Multi-Look and Time-Recursion

    Publication Year: 2013 , Page(s): 2369 - 2385
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (3076 KB) |  | HTML iconHTML  

    Automatic target recognition (ATR) using high range resolution (HRR) radar signatures is developed using classical Bayesian multiple hypothesis theory. An eigen-template-based matched filtering (ETMF) algorithm is presented where the templates are formed using the dominant range-space eigenvector of detected HRR training profiles and classification is performed using normalized matched filtering (... View full abstract»

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  • Sparse Grid-Based Nonlinear Filtering

    Publication Year: 2013 , Page(s): 2386 - 2396
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1638 KB) |  | HTML iconHTML  

    The problem of estimating the state of a nonlinear stochastic plant is considered. Unlike classical approaches such as the extended Kalman filter, which are based on the linearization of the plant and the measurement model, we concentrate on the nonlinear filter equations such as the Zakai equation. The numerical approximation of the conditional probability density function (pdf) using ordinary gr... View full abstract»

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  • UAV Path Planning in a Dynamic Environment via Partially Observable Markov Decision Process

    Publication Year: 2013 , Page(s): 2397 - 2412
    Cited by:  Papers (3)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (3333 KB) |  | HTML iconHTML  

    A path-planning algorithm to guide unmanned aerial vehicles (UAVs) for tracking multiple ground targets based on the theory of partially observable Markov decision processes (POMDPs) is presented. A variety of features of interest are shown to be easy to incorporate into the framework by plugging in the appropriate models, which demonstrates the power and flexibility of the POMDP framework. Specif... View full abstract»

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  • Noncoherent Integration for Signal Detection: Analysis Under Model Uncertainties

    Publication Year: 2013 , Page(s): 2413 - 2430
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (3248 KB) |  | HTML iconHTML  

    The performance of postdetection integration (PDI) techniques for the detection of Global Navigation Satellite Systems (GNSS) signals in the presence of uncertainties in frequency offsets, noise variance, and unknown data-bits is studied. It is shown that the conventional PDI techniques are generally not robust to uncertainty in the data-bits and/or the noise variance. Two new modified PDI techniq... View full abstract»

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  • A Fast and Efficient Clutter Rejection Algorithm for SAR Imagery

    Publication Year: 2013 , Page(s): 2431 - 2439
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1390 KB) |  | HTML iconHTML  

    A clutter rejection scheme is proposed for synthetic aperture radar (SAR) imagery based on two-stage two-dimensional principal component analysis (two-stage 2DPCA) followed by a bipolar eigenspace separation transformation (BEST) and a multilayer perceptron (MLP). For this, we have examined and analyzed four different algorithms. They are based on principal component analysis (PCA) both in one dim... View full abstract»

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Aims & Scope

IEEE Transactions on Aerospace and Electronic Systems focuses on the equipment, procedures, and techniques applicable to the organization, installation, and operation of functional systems designed to meet the high performance requirements of earth and space systems.

Full Aims & Scope

Meet Our Editors

Editor-in-Chief
Lance Kaplan
Army Research Laboratory