Robust interference suppression for multichannel SAR
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(Accepted version)
Date
2005
Authors
Rosenberg, L.
Gray, D.
Editors
Bouzerdoum, A.
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Conference paper
Citation
ISSPA 2005 : the 8th International Symposium on Signal Processing and Its Applications : proceedings : August 28-31, 2005, Sydney, Australia / [A. Bouzerdoum and A. Beghdadi (eds.)], pp. 883-886
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Luke Rosenberg and Doug Gray
Conference Name
International Symposium on Signal Processing and Its Applications (8th : 2005 : Sydney, N.S.W.)
Abstract
Forming a Synthetic Aperture Radar (SAR) image while suppressing a broadband jammer can potentially destroy large regions of the image. In addition to this, multipath reflections from the ground, known as hot-clutter or terrain scattered interference will add a non-stationary interference component to the image. The goal of interference suppression for SAR is to successfully suppress these interferences while not significantly effecting the image quality by blurring, reducing the resolution or raising the side-lobe level. Using multiple antennas on a SAR provides spatial degrees of freedom and allows for adaptive beamforming to suppress the jammer signals. This paper presents two constrained spatial techniques which reduce the interference level without significantly effecting the image quality.
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© 2005, IEEE