Improved DOA Estimations Using the Receiving Mutual Impedances for Mutual Coupling Compensation: An Experimental Study

Author

Yu, Yantao ; Lui, Hoi-Shun ; Niow, Choon Hock ; Hui, Hon Tat

Author_Institution

Dept. of Electr. & Comput. Eng., Nat. Univ. of Singapore, Singapore, Singapore

Volume

10

Issue

7

fYear

2011

fDate

7/1/2011 12:00:00 AM

Firstpage

2228

Lastpage

2233

Abstract

An experimental study is performed to investigate the improvement of direction-of-arrival (DOA) estimation using the recently proposed receiving mutual impedances for mutual coupling compensation. A seven-monopole antenna array is constructed and used in DOA estimation employing the MUSIC algorithm. Comparisons are made with the case of using the conventional mutual impedances for mutual coupling compensation. All experiments are carried out inside an anechoic chamber. Results are obtained for one- and two-source experiments which indicate that the performance of DOA estimation in the presence of mutual coupling can be significantly improved when the mutual coupling effect is compensated by using the receiving mutual impedances.

Keywords

direction-of-arrival estimation; monopole antenna arrays; DOA estimations; MUSIC algorithm; anechoic chamber; conventional mutual impedances; direction-of-arrival estimation; mutual coupling compensation; receiving mutual impedances; seven-monopole antenna array; Antenna arrays; Arrays; Direction of arrival estimation; Estimation; Impedance measurement; Mutual coupling; Receiving antennas; DOA estimation; MUSIC; experimental study; monopole antenna array; mutual coupling; receiving mutual impedance;

fLanguage

English

Journal_Title

Wireless Communications, IEEE Transactions on

Publisher

ieee

ISSN

1536-1276

Type

jour

DOI

10.1109/TWC.2011.041311.101062

Filename

5754755