Direction finding system using symmetric-pair antenna arrays

Author

Titze, W.A.U. ; Brennan, P.V. ; Benjamin, R.

Author_Institution

Dept. of Electron. & Electr. Eng., Univ. Coll. London, UK

Volume

142

Issue

3

fYear

1995

fDate

6/1/1995 12:00:00 AM

Firstpage

130

Lastpage

136

Abstract

A new type of direction finder that uses symmetric-pair antenna arrays is presented. Compared to conventional direction finding (DF) systems, no highly accurate phase or amplitude measurements are necessary, since symmetric-pair DF systems only measure polarities and determine both the azimuth and elevation angle of a received signal from that polarity pattern. The principle of direction finding with symmetric-pairs is outlined and algorithms are presented. Methods to improve the DF resolution for a given maximum antenna array size are discussed and a technique to cope with signals received around the grating lobe nulls of each antenna pair is introduced. The presented theory is confirmed by results obtained from a prototype DF system which operates at microwave frequencies

Keywords

direction-of-arrival estimation; microwave antenna arrays; phase measurement; radio direction-finding; DF resolution; DF systems; DOA estimation; azimuth; direction finding system; elevation angle; grating lobe nulls; maximum antenna array size; microwave frequencies; phase measurement; polarities measurement; polarity pattern; received signal; symmetric-pair antenna arrays;

fLanguage

English

Journal_Title

Radar, Sonar and Navigation, IEE Proceedings -

Publisher

iet

ISSN

1350-2395

Type

jour

DOI

10.1049/ip-rsn:19951887

Filename

392530