Fully Quaternion-Valued Adaptive Beamforming Based on Crossed-Dipole Arrays

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ID: 20353
2017
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Abstract
Based on crossed-dipole antenna arrays, quaternion-valued data models have been developed for both direction of arrival estimation and beamforming in the past. However, for almost all the models, and especially for adaptive beamforming, the desired signal is still complex-valued as in the quaternion-valued Capon beamformer. Since the complex-valued desired signal only has two components, while there are four components in a quaternion, only two components of the quaternion-valued beamformer output are used and the remaining two are simply discarded, leading to significant redundancy in its implementation. In this work, we consider a quaternion-valued desired signal and develop a fully quaternion-valued Capon beamformer which has a better performance and a much lower complexity. Furthermore, based on this full quaternion model, the robust beamforming problem is also studied in the presence of steering vector errors and a worst-case-based robust beamformer is developed. The performance of the proposed methods is verified by computer simulations.
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lan2017fullyelectronics Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Lan, Xiang;Liu, Wei;
Journal Electronics
Year 2017
DOI
DOI not found
URL
http://www.mdpi.com/2079-9292/6/2/34
Keywords Keywords not found

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