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Detection of Moving Targets by Focusing in UWB SAR—Theory and Experimental Results
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2010 (English)In: IEEE Transactions on Geoscience and Remote Sensing, ISSN 0196-2892, E-ISSN 1558-0644, Vol. 48, no 10, 3799-3815 p.Article in journal (Refereed) Published
Abstract [en]

Moving-target detection in ultrawideband (UWB) synthetic aperture radar (SAR) is associated with long integration time and must accommodate azimuth focusing for reliable detection. This paper presents the theory on detection of moving targets by focusing and experimental results on single-channel SAR data aimed at evaluating the detection performance. The results with respect to both simulated and real data show that the ability to detect moving targets increases significantly when applying the proposed detection technique. The improvement in signal-to-clutter noise ratio, which is a basic requisite for evaluating the performance, reaches approximately 20 dB, using only single-channel SAR data. This gain will be preserved for the case of multichannel SAR data. The reference system for this study is the airborne UWB low-frequency SAR Coherent All RAdio BAnd Sensing II.

Place, publisher, year, edition, pages
IEEE , 2010. Vol. 48, no 10, 3799-3815 p.
Keyword [en]
Coherent All RAdio BAnd Sensing (CARABAS)-II, detection, fast backprojection, fast factorized backprojection (FFBP), moving target, multichannel, single channel, synthetic aperture radar (SAR), ultrawideband (UWB), UWB chirp scaling (UCS).
National Category
Signal Processing
URN: urn:nbn:se:bth-7739ISI: 000283349400019Local ID: diva2:835394
Available from: 2012-09-18 Created: 2010-08-27 Last updated: 2016-05-24Bibliographically approved

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Vu, Viet ThuyPettersson, Mats
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