Bearing estimations with mutual coupling present

Author

Yeh, Chien-chung ; Leou, Maw-Lin ; Ucci, Donald R.

Author_Institution

Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan

Volume

37

Issue

10

fYear

1989

fDate

10/1/1989 12:00:00 AM

Firstpage

1332

Lastpage

1335

Abstract

Estimating angles of arrival of radiation sources using an antenna array with mutual coupling between elements is investigated. The presence of mutual coupling distorts phase vectors of radiation sources and the eigenstructure of the covariance matrix. Two approaches are proposed to counteract that distortion so that eigenstructure methods can perform well. The method described first eliminates the distortion of the signal component of the the covariance matrix and then applies spatial smoothing to decorrelate the coherence between sources. Computers simulation results show that this method successfully counteracts mutual coupling

Keywords

antenna arrays; parameter estimation; signal processing; angles of arrival estimation; antenna array; array processing; bearing estimation; covariance matrix; eigenstructure methods; mutual coupling; phase vectors; radiation sources; spatial smoothing; Antennas and propagation; Covariance matrix; Dipole antennas; Direction of arrival estimation; Electromagnetic propagation; Electromagnetic scattering; Gratings; Mutual coupling; Radar scattering; Working environment noise;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.43546

Filename

43546