Robust capon beamforming by the adaptive projected subgradient method

Konstantinos Slavakis, Masahiro Yukawa, Isao Yamada

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Scopus citations

Abstract

It is well-known that the Capon beamformer is sensitive to array steering vector errors and may result into a worse performance than classical data-independent beamformers. This paper follows a different path from the well-established Diagonal Loading techniques and designs a robust Capon beamformer by a recent extension of the Adaptive Projected Subgradient Method. The proposed method marks a computational complexity of O(N2), where N is the number of array elements. The simulation results show that the proposed beamformer achieves excellent performance especially in cases where the Diagonal Loading techniques face difficulties, i.e. in cases where the Interference to Noise Ratio (INR) is moderately larger than SNR.

Original languageEnglish (US)
Title of host publication2006 IEEE International Conference on Acoustics, Speech, and Signal Processing - Proceedings
PagesIV1005-IV1008
StatePublished - Dec 1 2006
Event2006 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 2006 - Toulouse, France
Duration: May 14 2006May 19 2006

Publication series

NameICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
Volume4
ISSN (Print)1520-6149

Other

Other2006 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 2006
CountryFrance
CityToulouse
Period5/14/065/19/06

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