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A Robust Capon Beamformer against Uncertainty of Nominal Steering Vector

EURASIP Journal on Advances in Signal Processing volume 2006, Article number: 062327 (2006) Cite this article

Abstract

A robust Capon beamformer (RCB) against the uncertainty of nominal array steering vector (ASV) is formulated in this paper. The RCB, which can be categorized as diagonal loading approach, is obtained by maximizing the output power of the standard Capon beamformer (SCB) subject to an uncertainty constraint on the nominal ASV. The bound of its output signal-to-interference-plus-noise ratio (SINR) is also derived. Simulation results show that the proposed RCB is robust to arbitrary ASV error within the uncertainty set.

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Authors and Affiliations

  1. Center for Signal Processing, Nanyang Technological University, Singapore, 639798

    Zhu Liang Yu

  2. School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore, 639798

    Meng Hwa Er

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  1. Zhu Liang Yu
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  2. Meng Hwa Er
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Correspondence to Zhu Liang Yu.

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Open Access This article is distributed under the terms of the Creative Commons Attribution 2.0 International License ( https://creativecommons.org/licenses/by/2.0 ), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Yu, Z.L., Er, M.H. A Robust Capon Beamformer against Uncertainty of Nominal Steering Vector. EURASIP J. Adv. Signal Process. 2006, 062327 (2006). https://doi.org/10.1155/ASP/2006/62327

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  • DOI: https://doi.org/10.1155/ASP/2006/62327

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