Optimal Beamforming for Range-Doppler Ambiguity Minimization in Squinted SAR

被引：8
作者：
Di Lorenzo, Paolo [1 ]
Barbarossa, Sergio [1 ]
Borgarelli, Leonardo [2 ]
机构：
[1] Univ Roma La Sapienza, DIET, I-00184 Rome, Italy
[2] Thales Alenia Space, I-00131 Rome, Italy
来源：
IEEE TRANSACTIONS ON AEROSPACE AND ELECTRONIC SYSTEMS | 2013年 / 49卷 / 01期
关键词：
AZIMUTH AMBIGUITIES; PATTERN SYNTHESIS; SUPPRESSION;
D O I：
10.1109/TAES.2013.6404103
中图分类号：
V [航空、航天];
学科分类号：
08 ; 0825 ;
摘要：
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.
引用
收藏
页码：277 / 293
页数：17
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