DocumentCode
485090
Title
Speed estimation experiments for ground moving targets in UWB SAR
Author
Sjogren, Thomas K. ; Vu, Viet Thuy ; Pettersson, Mats I. ; Zepernick, Hans-Jurgen ; Gustavsson, Anders
Author_Institution
Blekinge Institute of Technology, Department of Signal Processing, P.O. Box 520, SE-372 25 Ronneby, Sweden
fYear
2007
fDate
15-18 Oct. 2007
Firstpage
1
Lastpage
5
Abstract
This paper presents an iterative method to estimate the Normalised Relative Speed (NRS) of ground moving targets in Ultra Wideband (UWB) wide beam Synthetic Aperture Radar (SAR) using one antenna. The number of iterations depends on the separation between processed NRS and true target NRS. The NRS estimate is based on a chirp rate estimator in azimuth direction of the SAR image. The paper derives an analytical expression of the azimuth phase information based on the moving target NRS and the NRS used in the image formation. The method has been tested on real data from the CARABAS-II SAR system showing good results.
Keywords
SAR; UWB; focusing; normalised relative speed; speed estimation;
fLanguage
English
Publisher
iet
Conference_Titel
Radar Systems, 2007 IET International Conference on
Conference_Location
Edinburgh, UK
ISSN
0537-9989
Print_ISBN
978-0-86341-848-8
Type
conf
Filename
4784116
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