The DOI matches its Crossref record; 18 of the 18 references it cites were found in a registry or an index.
On robust Capon beamforming and diagonal loading
Abstract
The Capon (1969) beamformer has better resolution and much better interference rejection capability than the standard (data-independent) beamformer, provided that the array steering vector corresponding to the signal of interest (SOI) is accurately known. However, whenever the knowledge of the SOI steering vector is imprecise (as is often the case in practice), the performance of the Capon beamformer may become worse than that of the standard beamformer. Diagonal loading (including its extended versions) has been a popular approach to improve the robustness of the Capon beamformer. We show that a natural extension of the Capon beamformer to the case of uncertain steering vectors also belongs to the class of diagonal loading approaches, but the amount of diagonal loading can be precisely calculated based on the uncertainty set of the steering vector. The proposed robust Capon beamformer can be efficiently computed at a comparable cost with that of the standard Capon beamformer. Its excellent performance for SOI power estimation is demonstrated via a number of numerical examples.
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Cites
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Robust minimum variance beamforming
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Cited by
A sparse signal reconstruction perspective for source localization with sensor arrays
Malioutov, D., Cetin, M., & Willsky, A. S. (2005) · IEEE Transactions on Signal Processing · doi:10.1109/tsp.2005.850882 · Cited by 2,638
Robust minimum variance beamforming
Lorenz, R. G., & Boyd, S. P. (2005) · IEEE Transactions on Signal Processing · doi:10.1109/tsp.2005.845436 · Cited by 774
Yardibi, T., Li, J., Stoica, P., Xue, M., & Baggeroer, A. B. (2010) · IEEE Transactions on Aerospace and Electronic Systems · doi:10.1109/taes.2010.5417172 · Cited by 699
Self-citationAdaptive Beamforming Applied to Medical Ultrasound Imaging
Synnevag, J. F., Austeng, A., & Holm, S. (2007) · IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control · doi:10.1109/tuffc.2007.431 · Cited by 592
Convex Optimization in Signal Processing and Communications
(2009) · Cambridge University Press eBooks · doi:10.1017/cbo9780511804458 · Cited by 554
Metadata
- Authors
- Li, J., Stoica, P., & Wang, Z.
- Venue
- IEEE Transactions on Signal Processing
- Published
- 2003-07
- Volume
- 51
- Issue
- 7
- Pages
- 1702-1715
- ISSN
- 1053-587X (ISSN-L)
- 1941-0476
- OpenAlex
- W2005602327
- Cited by
- 1,439
- References
- 18
- FWCI
- 55.95
- Type
- journal article
- Language
- en
- Open access
- closed
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