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@article{Zhuang:2013:10.1049/iet-spr.2011.0464,
author = {Zhuang, J and Manikas, A},
doi = {10.1049/iet-spr.2011.0464},
journal = {Iet Signal Processing},
pages = {1--8},
title = {Interference Cancellation BeamformingRobust to Pointing Errors},
url = {http://dx.doi.org/10.1049/iet-spr.2011.0464},
year = {2013}
}

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TY  - JOUR
AB  - The conventional Wiener–Hopf beamformer is subject to substantial performance degradation in the presence ofsteering vector pointing errors. By removing the effects of the desired signal, the modified Wiener–Hopf beamformer avoidsthis problem but allows cochannel interferences to pass through in order to maximise the signal-to-noise ratio. In this study, anovel array beamformer is proposed, which not only reduces the effect of pointing errors, but also asymptotically providescomplete interference rejection. In particular, the proposed beamformer utilises a vector space projection method and employsa one-step computation for the desired signal power. Using this, the effects of the desired signal can be extracted to form thedesired-signal-absent covariance matrix. Thus, a weight vector orthogonal with the interference subspace can be constructed.Numerical results demonstrate the superior performance of the proposed beamformer in the presence of pointing errorsrelative to other existing approaches such as ‘diagonal loading’, ‘robust Capon’ and ‘signal subspace projection’ beamformers.
AU  - Zhuang,J
AU  - Manikas,A
DO  - 10.1049/iet-spr.2011.0464
EP  - 8
PY  - 2013///
SN  - 1751-9675
SP  - 1
TI  - Interference Cancellation BeamformingRobust to Pointing Errors
T2  - Iet Signal Processing
UR  - http://dx.doi.org/10.1049/iet-spr.2011.0464
ER  -

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