Fundamental limitations of diversely polarized antenna arrays

Author

Weiss, Anthony J. ; Friedlander, Benjamin

Author_Institution

Dept. of Electr. Eng., Tel Aviv Univ., Israel

Volume

4

fYear

1992

fDate

23-26 Mar 1992

Firstpage

449

Abstract

The performance of direction finding systems in a correlation signal environment utilizing diversely polarized antenna arrays is investigated. The Cramer-Rao bound (CRB) is used to evaluate the accuracy of the estimated directions of arrival. Compact closed form formulas are presented for the CRB corresponding to the joint estimation of the directions of arrival, signal covariance matrix, signal polarization parameters, and noise variance. The CRB is evaluated numerically for selected examples, to provide insights into the potential improvement in direction finding accuracy due to polarization diversity

Keywords

antenna arrays; array signal processing; electromagnetic wave polarisation; radio direction-finding; Cramer-Rao bound; DOA; antenna arrays; closed form formulas; correlation signal environment; direction finding systems; directions of arrival; noise variance; polarization diversity; signal covariance matrix; signal polarization parameters; signal separation; system performance; Antenna arrays; Antennas and propagation; Covariance matrix; Direction of arrival estimation; Polarization; Propagation delay; Radar antennas; Radar clutter; Sensor arrays; Sensor systems;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 1992. ICASSP-92., 1992 IEEE International Conference on

Conference_Location

San Francisco, CA

ISSN

1520-6149

Print_ISBN

0-7803-0532-9

Type

conf

DOI

10.1109/ICASSP.1992.226339

Filename

226339