Title
Reduced-dimension robust capon beamforming using Krylov-subspace techniques
Abstract
We present low-complexity, quickly converging robust adaptive beamformers, for beamforming large arrays in snapshot deficient scenarios. The proposed algorithms are derived by combining data-dependent Krylov-subspace-based dimensionality reduction, using the Powers-of-R or conjugate gradient (CG) techniques, with ellipsoidal uncertainty set based robust Capon beamformer methods. Further, we provide a detailed computational complexity analysis and consider the efficient implementation of automatic, online dimension-selection rules. We illustrate the benefits of the proposed approaches using simulated data.
Year
DOI
Venue
2015
10.1109/TAES.2014.130485
Aerospace and Electronic Systems, IEEE Transactions  
Keywords
Field
DocType
Robustness,Transforms,DH-HEMTs,Vectors,Ellipsoids,Array signal processing,Symmetric matrices
Conjugate gradient method,Krylov subspace,Beamforming,Adaptive beamformer,Dimensionality reduction,Robustness (computer science),Electronic engineering,Capon,Mathematics,Computational complexity theory
Journal
Volume
Issue
ISSN
51
1
0018-9251
Citations 
PageRank 
References 
20
0.57
44
Authors
4
Name
Order
Citations
PageRank
Samuel Dilshan Somasundaram1474.66
Nigel H. Parsons2291.84
Peng Li3200.57
de Lamare, R.C.465233.42