Adaptive tensorial beamformer based on electromagnetic vector-sensor arrays with coherent interferences

Xirui Zhang; Zhiwen Liu; Yougen Xu; Wei Liu

doi:10.1007/s11045-014-0281-8

Adaptive tensorial beamformer based on electromagnetic vector-sensor arrays with coherent interferences

Xirui Zhang, Zhiwen Liu, Yougen Xu^*, Wei Liu

^*Corresponding author for this work

School of Integrated Circuits and Electronics

Research output: Contribution to journal › Article › peer-review

16 Citations (Scopus)

Abstract

An adaptive beamforming scheme based on vector-sensor arrays is implemented using two different matrix contractions of the 4th order covariance tensor. This tensorial beamformer has a two-stage structure, effectively combining the Bartlett and the minimum-variance-distortionless-response beamformers together. At the first stage, it involves an inherent multi-dimensional data smoothing operation which is capable of suppressing coherent interferences; at the second stage, the fixed Bartlett beamformer provides further enhancement to its robustness against steering vector mismatch errors, such as direction of arrival estimation and element position errors. The effectiveness of the proposed algorithms is verified by numerical simulations.

Original language	English
Pages (from-to)	803-821
Number of pages	19
Journal	Multidimensional Systems and Signal Processing
Volume	26
Issue number	3
DOIs	https://doi.org/10.1007/s11045-014-0281-8
Publication status	Published - 3 Jul 2015

Keywords

Adaptive beamforming
Coherent interference
Electromagnetic vector-sensor arrays
Multilinear algebra
Smoothing technique

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10.1007/s11045-014-0281-8

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abstract = "An adaptive beamforming scheme based on vector-sensor arrays is implemented using two different matrix contractions of the 4th order covariance tensor. This tensorial beamformer has a two-stage structure, effectively combining the Bartlett and the minimum-variance-distortionless-response beamformers together. At the first stage, it involves an inherent multi-dimensional data smoothing operation which is capable of suppressing coherent interferences; at the second stage, the fixed Bartlett beamformer provides further enhancement to its robustness against steering vector mismatch errors, such as direction of arrival estimation and element position errors. The effectiveness of the proposed algorithms is verified by numerical simulations.",

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AU - Xu, Yougen

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KW - Multilinear algebra

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Adaptive tensorial beamformer based on electromagnetic vector-sensor arrays with coherent interferences

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Keywords

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