DocumentCode
762
Title
Optimal Beamforming for Range-Doppler Ambiguity Minimization in Squinted SAR
Author
Di Lorenzo, Paolo ; Barbarossa, S. ; Borgarelli, L.
Author_Institution
Univ. of Rome, La Sapienza, Italy
Volume
49
Issue
1
fYear
2013
fDate
Jan. 2013
Firstpage
277
Lastpage
293
Abstract
A method is proposed to optimize the radiation pattern of a planar array in order to maximize the signal-to-ambiguity-ratio for a squinted synthetic aperture radar (SAR) observation geometry. The optimal beamformer is the generalized eigenvector associated with a pair of matrices that depends on observation geometry and the Earth reflectivity model. The proposed approach is valid for any array configuration. This enables adaptivity to surface background and T/R module failures, thus increasing system robustness.
Keywords
array signal processing; radar signal processing; synthetic aperture radar; Earth reflectivity model; T/R module failures; array configuration; generalized eigenvector; optimal beamforming; range-Doppler ambiguity minimization; signal-to-ambiguity-ratio; squinted SAR; squinted synthetic aperture radar observation geometry; Antenna radiation patterns; Array signal processing; Optimization; Synthetic aperture radar;
fLanguage
English
Journal_Title
Aerospace and Electronic Systems, IEEE Transactions on
Publisher
ieee
ISSN
0018-9251
Type
jour
DOI
10.1109/TAES.2013.6404103
Filename
6404103
Link To Document