Robust Capon beamforming
Top Cited Papers
- 13 May 2003
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Signal Processing Letters
- Vol. 10 (6) , 172-175
- https://doi.org/10.1109/lsp.2003.811637
Abstract
The Capon 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. We present a natural extension of the Capon beamformer to the case of uncertain steering vectors. The proposed robust Capon beamformer can no longer be expressed in a closed form, but it can be efficiently computed. Its excellent performance is demonstrated via a number of numerical examples.Keywords
This publication has 9 references indexed in Scilit:
- On robust Capon beamforming and diagonal loadingIEEE Transactions on Signal Processing, 2003
- Robust adaptive beamforming using worst-case performance optimization: a solution to the signal mismatch problemIEEE Transactions on Signal Processing, 2003
- Robust adaptive beamforming using worst-case performance optimization via Second-Order Cone programmingPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- Optimum broadband beamforming for coherent broadband signals and interferencesSignal Processing, 1999
- Using SeDuMi 1.02, A Matlab toolbox for optimization over symmetric conesOptimization Methods and Software, 1999
- Applications of second-order cone programmingLinear Algebra and its Applications, 1998
- Semidefinite ProgrammingSIAM Review, 1996
- A new interpretation of Capon's maximum likelihood method of frequency-wavenumber spectral estimationIEEE Transactions on Acoustics, Speech, and Signal Processing, 1983
- High-resolution frequency-wavenumber spectrum analysisProceedings of the IEEE, 1969