Omega-k Algorithm for Airborne Forward-Looking Bistatic Spotlight SAR Imaging

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For flexibility and cost reduction, the forward-looking bistatic spotlight synthetic aperture radar (FL-BSSAR) which uses the side-looking transmitter and the forward-looking receiver has been studied recently. For the FL-BSSAR imaging, we introduce a modified omega-k algorithm. Specifically, using rotation and shifting of the receiver path and resampling of the transmitter path, we convert the FL-BSSAR into the side-looking BSSAR. Then, we modify the matched filter and Stolt interpolation using the principle of the stationary phase to obtain the SAR image. Simulation results show that the modified omega-k algorithm enhances the image quality.
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Issue Date
2009-04
Language
English
Article Type
Article
Keywords

RANGE MIGRATION ALGORITHM

Citation

IEEE GEOSCIENCE AND REMOTE SENSING LETTERS, v.6, pp.312 - 316

ISSN
1545-598X
DOI
10.1109/LGRS.2008.2011924
URI
http://hdl.handle.net/10203/93474
Appears in Collection
EE-Journal Papers(저널논문)
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