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Date 4-8 May 2009

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Displaying Results 1 - 25 of 231
  • Organizing Committee

    Publication Year: 2009, Page(s): 1
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    Freely Available from IEEE
  • Plenary session

    Publication Year: 2009, Page(s): 1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (70 KB)

    Provides an abstract of the plenary presentation and a brief professional biography of the presenter. The complete presentation was not made available for publication as part of the conference proceedings. View full abstract»

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  • Tutorials program

    Publication Year: 2009, Page(s):1 - 11
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (172 KB)

    Provides an abstract for each of the tutorial presentations and a brief professional biography of each presenter. The complete presentations were not made available for publication as part of the conference proceedings. View full abstract»

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  • Awards program

    Publication Year: 2009, Page(s):1 - 3
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  • Sponsors

    Publication Year: 2009, Page(s):1 - 5
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    Freely Available from IEEE
  • Technical Program Committee

    Publication Year: 2009, Page(s):1 - 2
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  • Abstracts

    Publication Year: 2009
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (547 KB)

    Presents abstracts of presentations from the conference proceedings. View full abstract»

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  • Technical program

    Publication Year: 2009, Page(s):1 - 27
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    Freely Available from IEEE
  • Response of polar format algorithm to moving target with consideration of wavefront curvature

    Publication Year: 2009, Page(s):1 - 6
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (715 KB) | HTML iconHTML

    The synthetic aperture radar (SAR) signatures of moving target are the basis of ground moving target detection and imaging (GMTI&Im). However, previous studies are mainly focused on the influence of target's motion on phase history; and little work has been done to investigate the signatures of moving target after the application of a particular SAR image formation algorithm. In this paper, we... View full abstract»

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  • Nonlinear classifier combination for a maritime target recognition task

    Publication Year: 2009, Page(s):1 - 5
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (526 KB) | HTML iconHTML

    This research proposes a nonlinear combination of an ensemble of classifiers to improve pattern recognition performance. A maritime target recognition application is considered. A database of radar range profiles with six ship classes from various aspect angles were created. Five structurally based features are defined on the simulated range profiles. Three kinds of classifiers are used: neural ne... View full abstract»

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  • Resolution-fusion for LASAR based on DWT

    Publication Year: 2009, Page(s):1 - 5
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (738 KB) | HTML iconHTML

    This paper introduces a new resolution-fusion method for linear array 3-D imaging SAR (LASAR). The cross-track (CT) resolution of LASAR is often coarser than that in the along-track (AT) direction, limited by the length of the linear array. To overcome this limitation, we assume that there are two LASAR systems whose trajectories are orthogonal to each other. Thus, we obtain a row-coarse-resolutio... View full abstract»

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  • Limitations of scanning arrays for space

    Publication Year: 2009, Page(s):1 - 5
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (931 KB) | HTML iconHTML

    This paper applies transmission line notions to the limitations of the power and RF distribution infrastructure in large space based arrays. It shows that using a relatively small AESA to feed a reflector may be a better choice for many space borne radar applications. View full abstract»

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  • Block Least Mean Squares processing of noise radar waveforms

    Publication Year: 2009, Page(s):1 - 6
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (353 KB) | HTML iconHTML

    Noise radars usually employ correlation processing of waveforms. However, vulnerability to clutter is a serious disadvantage of this approach. This paper considers using Least Squares (LS) based methods. In particular, highly efficient Block Least Mean Squares (Block LMS) algorithm is studied in details. The formula for integration gain of Block LMS is derived. Compared to analogue quantity for co... View full abstract»

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  • Ellipse-cross-localization accuracy analysis of through-the-wall radar

    Publication Year: 2009, Page(s):1 - 4
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1064 KB) | HTML iconHTML

    Ellipse-cross-localization (ECL) method is presented for TWR location in this paper. The location error is mainly influenced by errors of the wall parameters and the target relative position to antennas. The effect of wall thickness and dielectric constant on TWR localization is analyzed. And the localization accuracy of detection region in different antennas configurations is illustrated by locat... View full abstract»

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  • Bistatic SAR using illumination from a tethered Ground Moving Target Indication Radar

    Publication Year: 2009, Page(s):1 - 6
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1240 KB) | HTML iconHTML

    In order to limit the ground clutter obscuration of very slow moving targets, ground moving target indication (GMTI) radars can be operated from stationary platforms. These systems generally cannot detect stationary targets for surface target surveillance. However, by using a small unmanned air vehicle (UAV) as a bistatic adjunct to GMTI system, a synthetic aperture radar (SAR) image can be formed... View full abstract»

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  • Technology intercepts for the S-APAS architecture

    Publication Year: 2009, Page(s):1 - 6
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (349 KB) | HTML iconHTML

    The implementation of the S-APAS (Scalable Multifunction Radio Frequency - Active Phased Array System) concept requires the use of autonomous T/R modules connected to a common digital bus. The T/R modules have the functions of radiating energy in the radar space, collecting the relative returns and exchanging data and commands with the processing/control blocks. The technological aspects related t... View full abstract»

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  • A new approach for target localization of through-the-wall radar with unknown walls

    Publication Year: 2009, Page(s):1 - 4
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (310 KB) | HTML iconHTML

    Based on imaging through assumed wall parameters, an approach of target localization for through-the-wall radar in the presence of wall ambiguities is proposed. The target location is estimated by finding the maximum pixel point in composite image which is composed by image sequences corresponding to different assumed wall parameters. The proposed approach is available for target localization with... View full abstract»

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  • Spatial, temporal, and spectral aspects of radar data

    Publication Year: 2009, Page(s):1 - 5
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1122 KB) | HTML iconHTML

    We develop a linearized imaging theory that combines the spatial, temporal, and spectral aspects of scattered waves. We consider the case of fixed, distributed transmitters and receivers, and a general distribution of objects, each undergoing linear motion; thus the theory deals with imaging distributions in phase space. We derive a model for the data that is appropriate for any set of waveforms, ... View full abstract»

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  • Three-dimensional human imaging for through-the-wall radar

    Publication Year: 2009, Page(s):1 - 4
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (390 KB) | HTML iconHTML

    Three-dimensional imaging can provide more detail information of the target than two-dimensional image, which can be used to identify the target. Thus, it is very useful for detecting in enclosed structures or behind the obstacle. This paper mainly research on the three-dimensional through-the-wall human imaging and introduce an approximate method to calculate the propagation delay when electromag... View full abstract»

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  • Reconstruction of constant envelope signals with given Fourier transform magnitude

    Publication Year: 2009, Page(s):1 - 4
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (371 KB) | HTML iconHTML

    In this paper, we consider the problem of reconstructing a signal with constant envelope property in the time domain from its Fourier transform magnitude. The constant envelope property makes the signal reconstruction problem difficult. In this context, several convex-set like signal properties are used to generate projection based iterative reconstruction algorithms possessing error reduction pro... View full abstract»

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  • FMCW radar for life-sign detection

    Publication Year: 2009, Page(s):1 - 6
    Cited by:  Papers (10)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (966 KB) | HTML iconHTML

    In this paper we investigate the use of Frequency Modulated Continuous Wave (FMCW) radars for detecting life-sign of people, i.e. breathing and heartbeat. An optimum frequency has been selected to observe life-sign, taking into consideration also design factors, such as bandwidth availability and interference with other systems. A new compact X-band FMCW radar has been built at TNO laboratories an... View full abstract»

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  • Mismatched filters for Frank polyphase codes via sidelobe inversion

    Publication Year: 2009, Page(s):1 - 6
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (354 KB) | HTML iconHTML

    A computationally efficient mismatched filter for Frank polyphase codes is proposed. It is based on an efficiently constructed matched filter followed by one or more stages of a sidelobe inversion (SLI) filter. This sidelobe inversion filter inherits the computationally efficient structure used for the matched filter. With the addition of few extra multipliers, a significant increase in the main l... View full abstract»

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  • STAP performance analysis for MIMO radar with waveform diversity

    Publication Year: 2009, Page(s):1 - 6
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (872 KB) | HTML iconHTML

    This paper studies the waveform effect on the space time adaptive processing (STAP) of multiple-input multiple-output (MIMO) radar systems. A general signal model based on waveform diversity is constructed for MIMO STAP. System sensitivity and optimal adapted pattern are investigated according to waveform diversity. These studies show how the MIMO STAP performance is affected by waveform diversity... View full abstract»

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  • Developments in the Frequency Diverse Bistatic System

    Publication Year: 2009, Page(s):1 - 5
    Cited by:  Papers (12)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1165 KB) | HTML iconHTML

    In this paper we extend the analysis of the frequency diverse bistatic system. Even if the CW FDBS has been shown to have interesting properties, asymmetrical sidelobes in range and angle can be an issue. In this paper we apply standard windowing functions to reduce the impact of sidelobes in the pattern and we study the effects of non linear frequency shift on the pattern itself. In addition we p... View full abstract»

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  • GMES Sentinel-1 FDBAQ performance analysis

    Publication Year: 2009, Page(s):1 - 6
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1094 KB) | HTML iconHTML

    Modern operational and/or high resolution SAR satellite missions impose stringent requirements on on-board data compression such as a higher data reduction ratio, more flexibility, and faster data throughput. A novel approach is Flexible Dynamic Block Adaptive Quantization (FDBAQ). This method outperforms currently used Block Adaptive Quantization with respect to Signal-to-Noise-Ratio related to t... View full abstract»

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