A Novel Prefilter-Type Beamformer Robust to Directional Error

Sung-Soo HWANG  Yong-Hwan LEE  

Publication
IEICE TRANSACTIONS on Communications   Vol.E87-B   No.11   pp.3389-3391
Publication Date: 2004/11/01
Online ISSN: 
DOI: 
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Antennas and Propagation
Keyword: 
array signal processing,  interference cancellation,  directional error,  robust beamforming,  

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Summary: 
Some conventional beamformers require the direction of the desired signal. The performance of such beamformers can substantially be degraded even in the presence of small error on the directional information. In this letter, we propose a prefilter-type beamforming scheme robust to directional error by employing a simple compensator. The performance of the proposed scheme is verified by computer simulation.