Direction-of-arrival estimation: measurement using compact antenna arrays under the influence of mutual coupling

Lui, Hoi-Shun and Hui, Hon Tat (2015) Direction-of-arrival estimation: measurement using compact antenna arrays under the influence of mutual coupling. IEEE Antennas and Propagation Magazine, 57 6: 62-68. doi:10.1109/MAP.2015.2480072


Author Lui, Hoi-Shun
Hui, Hon Tat
Title Direction-of-arrival estimation: measurement using compact antenna arrays under the influence of mutual coupling
Journal name IEEE Antennas and Propagation Magazine   Check publisher's open access policy
ISSN 1045-9243
1558-4143
Publication date 2015-12-01
Sub-type Article (original research)
DOI 10.1109/MAP.2015.2480072
Open Access Status Not Open Access
Volume 57
Issue 6
Start page 62
End page 68
Total pages 7
Place of publication Piscataway, NJ, United States
Publisher Institute of Electrical and Electronics Engineers
Language eng
Abstract This article investigates the accuracy of direction-of-arrival (DOA) estimations using compact antenna arrays under the influence of mutual coupling. We model the entire electromagnetic problem using the moment method such that the undesirable mutual coupling effect is taken into account accurately. We decouple the received signals using the receiving-mutual-impedance method (RMIM) and perform the DOA estimation using the matrix pencil method (MPM) through a Monte Carlo simulation approach. Although the signals are strongly distorted by mutual coupling, we show that increasing the number of elements within a small array aperture can significantly improve the estimation accuracy. The findings show that the RMIM can effectively compensate for mutual coupling for arrays with an aperture of a factor of a wavelength. Such findings are crucial to the development of compact arrays in various applications.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2016 Collection
School of Information Technology and Electrical Engineering Publications
 
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