Performance of diversely polarized antenna arrays for correlated signals

Author

Friedlander, Benjamin ; Weiss, Anthony J.

Author_Institution

Dept. of Electr. & Comput. Eng., California Univ., Davis, CA, USA

Volume

28

Issue

3

fYear

1992

fDate

7/1/1992 12:00:00 AM

Firstpage

869

Lastpage

879

Abstract

The performance of direction finding systems in a correlated 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 (DOAs). Compact closed form formulas are presented for the CRB corresponding to the joint estimation of the DOAs, 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; correlation methods; diversity reception; electromagnetic wave polarisation; numerical methods; parameter estimation; radio direction-finding; signal detection; signal processing; Cramer-Rao bound; correlated signals; direction finding systems; diversely polarized antenna arrays; estimated directions of arrival; noise variance; polarization diversity; signal covariance matrix; signal polarization parameters; Antenna arrays; Array signal processing; Covariance matrix; Direction of arrival estimation; Directive antennas; Multiple signal classification; Navigation; Polarization; Signal processing; Working environment noise;

fLanguage

English

Journal_Title

Aerospace and Electronic Systems, IEEE Transactions on

Publisher

ieee

ISSN

0018-9251

Type

jour

DOI

10.1109/7.256307

Filename

256307