Detection of Moving Targets by Focusing in UWB SAR-Theory and Experimental Results
Artikel i vetenskaplig tidskrift, 2010

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.

ultrawideband (UWB)

UWB chirp scaling (UCS)

field

back-projection

single channel

objects

backprojection

fast factorized backprojection (FFBP)

wide-band sar

multichannel

Coherent All RAdio BAnd Sensing (CARABAS)-II

fast

synthetic aperture radar (SAR)

detection

synthetic-aperture radar

moving target

Författare

V. T. Vu

Blekinge Tekniska Högskola, BTH

T. K. Sjogren

Blekinge Tekniska Högskola, BTH

M. I. Pettersson

Blekinge Tekniska Högskola, BTH

A. Gustavsson

Totalförsvarets forskningsinstitut (FOI)

Lars Ulander

Chalmers, Rymd- och geovetenskap, Radarfjärranalys

IEEE Transactions on Geoscience and Remote Sensing

0196-2892 (ISSN)

Vol. 48 3799-3815

Ämneskategorier

Övrig annan teknik

DOI

10.1109/TGRS.2010.2048572