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Aerospace and Electronic Systems, IEEE Transactions on

Issue 2 • Date April 2011

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Displaying Results 1 - 25 of 62
  • Contents

    Publication Year: 2011 , Page(s): c1
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  • [Inside front cover]

    Publication Year: 2011 , Page(s): c2
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  • From the Editor

    Publication Year: 2011 , Page(s): 769
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  • MIMO Radar Waveform Design in the Presence of Clutter

    Publication Year: 2011 , Page(s): 770 - 781
    Cited by:  Papers (8)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1160 KB) |  | HTML iconHTML  

    Waveform design for target identification and classification in multiple-input multiple-output (MIMO) radar systems has been studied in several recent works. In previous works, optimal signals for an estimation algorithm are found assuming that only signal- independent noise exists. This work extends previous research by studying the case where clutter is also present. We develop a procedure to de... View full abstract»

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  • Solar Cell as a Capacitive Temperature Sensor

    Publication Year: 2011 , Page(s): 782 - 789
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (2253 KB) |  | HTML iconHTML  

    Spacecrafts in geostationary Earth orbit and low Earth polar orbit experience temperatures in the range of 180°C to 80°C [1, 2] depending on the orbit. Solar cells are mounted on light weight aluminum honeycomb panels which are deployed and Sun pointed in on-orbit operation. Solar panels charge batteries and supply power to the satellite during sunlit period and batteries supply powe... View full abstract»

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  • Sidelobe Blanking with Expanded Models

    Publication Year: 2011 , Page(s): 790 - 805
    Cited by:  Papers (7)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (3801 KB) |  | HTML iconHTML  

    Sidelobe blanking (SLB) is used in radar systems to mitigate impulsive interference that enters the radar through a sidelobe of the primary antenna. A second, auxiliary antenna and channel are employed by an SLB system to produce a second output. This latter output is compared to that of the primary antenna channel, and a decision is then made, based on the classic Maisel SLB architecture, as to w... View full abstract»

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  • New Divisible Load Distribution Methods using Pipelined Communication Techniques on Tree and Pyramid Networks

    Publication Year: 2011 , Page(s): 806 - 819
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1280 KB) |  | HTML iconHTML  

    A divisible load can be arbitrarily divided into independent small load fractions which are assigned to processors in a parallel or distributed computing system for simultaneous processing. The theory and techniques of divisible load distribution have a wide range of aerospace applications, including satellite signal and image processing, radar and infrared tracking, target identification and sear... View full abstract»

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  • Modeling the Dielectric Constant Distribution of Wake Vortices

    Publication Year: 2011 , Page(s): 820 - 831
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1927 KB) |  | HTML iconHTML  

    The study of scattering characteristics of a wake vortex is very important for hazard avoidance, especially near airports. Obtaining the dielectric constant distribution is one of the basic issues in the scattering study for radar detection. The present work proposes a modeling method for the dielectric constant distribution. In the method the dielectric constant variation (also the radar cross se... View full abstract»

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  • Hybrid Algorithms for Multitarget Tracking using MHT and GM-CPHD

    Publication Year: 2011 , Page(s): 832 - 847
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (3526 KB) |  | HTML iconHTML  

    The Gaussian mixture cardinalized probability hypothesis density (GM-CPHD) is a new original algorithm for multitarget tracking adapted to false alarms, nondetection and closely spaced objects. It models the target set as a random finite set (RFS) and estimates the target state as the first-order moment of a joint probability distribution. In the classical version no track assignment is implemente... View full abstract»

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  • Performance Synthesis of UAV Trajectories in Multistatic SAR

    Publication Year: 2011 , Page(s): 848 - 863
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1836 KB) |  | HTML iconHTML  

    We develop guidelines for the design and analysis of unmanned aerial vehicle (UAV) trajectories for the purpose of high-quality image reconstructions based on a tomographic framework for a downlooking multistatic SAR imaging system. Modern matrix analysis provides several tools to generate performance bounds, which we relate to physical parameters of the synthetic aperture radar (SAR) measurement ... View full abstract»

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  • Vision-Based Navigation in Autonomous Close Proximity Operations using Neural Networks

    Publication Year: 2011 , Page(s): 864 - 883
    Cited by:  Papers (4)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (5512 KB) |  | HTML iconHTML  

    Tight unmanned aerial vehicle (UAV) autonomous missions such as formation flight (FF) and aerial refueling (AR) require an active controller that works in conjunction with a precise sensor that is able to identify an in-front aircraft and to estimate its relative position and orientation. Among possible choices vision sensors are of interest because they are passive in nature and do not require th... View full abstract»

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  • Application of the Dynamic Allan Variance for the Characterization of Space Clock Behavior

    Publication Year: 2011 , Page(s): 884 - 895
    Cited by:  Papers (8)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (6335 KB) |  | HTML iconHTML  

    Due to their stability atomic clocks represent the core of navigation systems such as GPS and the future European Galileo system. To identify possible anomalies, it is fundamental to detect when the clock stability varies with time. The dynamic Allan variance (DAVAR) makes this monitoring process possible. We extend the DAVAR to the case of a time series with missing data, and we analyze the prese... View full abstract»

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  • Fourth-Order Buck Converter for Maximum Power Point Tracking Applications

    Publication Year: 2011 , Page(s): 896 - 911
    Cited by:  Papers (5)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (3904 KB) |  | HTML iconHTML  

    Photovoltaic arrays (PVAs) need an intermediate maximum power point tracker as their v-i characteristics are nonlinear. Application of switch-mode dc-dc converters are popular in this area and the buck topology is widely used in these power tracking applications. However, the buck converter with an input L-C filter, with insufficient damping, will exhibit unwanted oscil... View full abstract»

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  • Theory and Application of SNR and Mutual Information Matched Illumination Waveforms

    Publication Year: 2011 , Page(s): 912 - 927
    Cited by:  Papers (24)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1557 KB) |  | HTML iconHTML  

    A comprehensive theory of matched illumination waveforms for both deterministic and stochastic extended targets is presented. Design of matched waveforms based on maximization of both signal-to-noise ratio (SNR) and mutual information (MI) is considered. In addition the problem of matched waveform design in signal-dependent interference is extensively addressed. New results include SNR-based wavef... View full abstract»

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  • M-Sequence and Secondary Code Constraints for GNSS Signal Acquisition

    Publication Year: 2011 , Page(s): 928 - 945
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (5524 KB) |  | HTML iconHTML  

    In this paper, the problem of coherently extending the integration time for the acquisition of new Global Navigation Satellite System (GNSS) signals is addressed. Unlike the acquisition of legacy GNSS signals, the presence of secondary codes allows the polarity of the transmitted signal to change each primary code period. These polarity changes have to be recovered, and symbol combinations have to... View full abstract»

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  • Comparison of Two Image and Inertial Sensor Fusion Techniques for Navigation in Unmapped Environments

    Publication Year: 2011 , Page(s): 946 - 958
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (2278 KB) |  | HTML iconHTML  

    To enable navigation of miniature aerial vehicles (MAVs) with a low-quality inertial measurement unit (IMU), external sensors are typically fused with the information generated by the low-quality IMU. Most commercial systems for MAVs currently fuse GPS measurements with IMU information to navigate the MAV. However there are many scenarios in which an MAV might prove useful, but GPS is not availabl... View full abstract»

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  • Decentralized Detection in Clustered Sensor Networks

    Publication Year: 2011 , Page(s): 959 - 973
    Cited by:  Papers (12)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (2494 KB) |  | HTML iconHTML  

    We investigate decentralized detection in clustered sensor networks with hierarchical multi-level fusion. We focus on simple majority-like fusion strategies, leading to closed-form analytical performance evaluation. The sensor nodes observe a binary phenomenon and transmit their own data to an access point (AP), possibly through intermediate fusion centers (FCs). We investigate the impact of unifo... View full abstract»

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  • Efficient Waveform Design for High-Bit-Rate W-band Satellite Transmissions

    Publication Year: 2011 , Page(s): 974 - 995
    Cited by:  Papers (5)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (5729 KB) |  | HTML iconHTML  

    In the EHF (extremely high frequency) domain, W-band (75-110 GHz) offers promising perspectives for future satellite communications, mainly in terms of large bandwidth availability for high-bit-rate transmission. In this work an innovative physical (PHY) layer design for broadband satellite connections operating in W-band is proposed, which is based on the prolate spheroidal wave functions (PSWFs)... View full abstract»

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  • Performance Measures and MHT for Tracking Move-Stop-Move Targets with MTI Sensors

    Publication Year: 2011 , Page(s): 996 - 1025
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (4886 KB) |  | HTML iconHTML  

    We consider the problem of tracking ground-based vehicles with moving target indicator (MTI) sensors. MTI sensors can only detect a target if the magnitude of the range-rate exceeds the minimum detectable velocity, and as a result targets typically exhibit evasive move-stop-move (MSM) behavior in order to avoid detection. Further complexity is added by the fact that the environment is cluttered, r... View full abstract»

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  • Defending an Asset: A Linear Quadratic Game Approach

    Publication Year: 2011 , Page(s): 1026 - 1044
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (2717 KB) |  | HTML iconHTML  

    Techniques based on pursuit-evasion (PE) games are often applied in military operations of autonomous vehicles (AV) in the presence of mobile targets. Recently with increasing use of AVs, new scenarios emerge such as surveillance and persistent area denial. Compared with PE games, the actual roles of the pursuer and the evader have changed. In these emerging scenarios the evader acts as an intrude... View full abstract»

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  • HRR Radar Signature Database Validation for ATR: An Information Theoretic Approach

    Publication Year: 2011 , Page(s): 1045 - 1059
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (2822 KB) |  | HTML iconHTML  

    The ability to make radar signature databases portable for use within similar sensor systems is critical to the affordability of future airborne signature exploitation systems. The capability to hybridize measured and synthetic signature database components will maximize the impact of the investment required to build complex radar signature databases. Radar target scattering mechanisms can be mode... View full abstract»

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  • Optimization of Confirmation Time of Bistatic Tracks in Passive Radar

    Publication Year: 2011 , Page(s): 1060 - 1072
    Cited by:  Papers (4)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1614 KB) |  | HTML iconHTML  

    The paper presents a method for optimizing the mean confirmation time of a bistatic track (in bistatic range, bistatic velocity coordinates) in passive radar by adjusting the processing parameters. The track confirmation method is a standard cascaded logic, or "m out of n" logic. To provide high reliability of the confirmed tracks, the expected rate of confirmed false tracks is calcu... View full abstract»

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  • Two-Dimensional Hidden Markov Model for Classification of Continuous-Valued Noisy Vector Fields

    Publication Year: 2011 , Page(s): 1073 - 1080
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (2052 KB) |  | HTML iconHTML  

    In this paper we present a statistical model with a nonsymmetric half-plane (NSHP) region of support for two-dimensional continuous-valued vector fields. It has the simplicity, efficiency, and ease of use of the well-known hidden Markov model (HMM) and associated Baum-Welch algorithms for time-series and other one-dimensional problems. At the same time it is able to learn textures on a two-dimensi... View full abstract»

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  • Game Theoretic Analysis of Adaptive Radar Jamming

    Publication Year: 2011 , Page(s): 1081 - 1100
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (2068 KB) |  | HTML iconHTML  

    A radar and a jammer are considered as informed opponents "playing" in a noncooperative two-player, zero-sum game. The effects of jamming on the target detection performance of a radar using constant false alarm rate (CFAR) processing are analyzed using a game theoretic approach for three cases: 1) ungated range noise (URN), 2) range-gated noise (RGN) and 3) false-target (FT) jamming. Assuming a S... View full abstract»

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  • Statistical Analysis of Urban GPS Multipaths and Pseudo-Range Measurement Errors

    Publication Year: 2011 , Page(s): 1101 - 1113
    Cited by:  Papers (3)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1833 KB) |  | HTML iconHTML  

    In urban environments one of the causes of pseudo-range measurement error in Global Positioning System (GPS) is short-delay multipaths due to the scatterers around the receiver. Therefore knowledge of the temporal distribution of GPS multipaths based on a statistical scatterer distribution in an urban environment is essential to estimating the positioning performance and to developing an efficient... 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