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.
Optimal beamforming for range-doppler ambiguity minimization in squinted SAR / DI LORENZO, Paolo; Barbarossa, Sergio; Borgarelli, Leonardo. - In: IEEE TRANSACTIONS ON AEROSPACE AND ELECTRONIC SYSTEMS. - ISSN 0018-9251. - 49:1(2013), pp. 277-293. [10.1109/taes.2013.6404103]
Optimal beamforming for range-doppler ambiguity minimization in squinted SAR
Paolo Di Lorenzo;Sergio Barbarossa;
2013
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.| File | Dimensione | Formato | |
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