Abstract
The goal of this letter is to derive robust adaptive beamformers via generalized loading. In the proposed methods, Hermitian matrices are loaded on sample covariance matrix, and this is different from those methods based on the well-known diagonal loading approach. Furthermore, the computation of the loaded matrix is fully automatic, which is scarce in the literature. Numerical examples show that our methods are more robust to errors on array steering vector and sample covariance matrix than other tested parameter-free methods.
Original language | English |
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Journal | IEEE Signal Processing Letters |
Volume | 16 |
Issue number | 3 |
Pages (from-to) | 219-222 |
Number of pages | 4 |
ISSN | 1070-9908 |
DOIs | |
Publication status | Published - 2009 |
Externally published | Yes |
Bibliographical note
Funding Information:Manuscript received August 28, 2008; revised October 20, 2008. Current version published February 11, 2009. This work was supported by the Commission of Science Technology and Industry for National Defence, China, under Grant No. A1320070067. The associate editor coordinating the review of this manuscript and approving it for publication was Prof. Yimin Zhang.
Keywords
- Adaptive beamforming
- Generalized loading
- Minimum variance beamforming
- Robust beamforming