An improved hybrid interferometer

Author

Penno, Robert P. ; Pasala, Krishna M. ; Schneider, Stephen

Author_Institution

Dayton Univ., OH, USA

Volume

2

fYear

2004

fDate

6-13 March 2004

Firstpage

940

Abstract

In this paper, three alternatives to AOA determination are considered: the hybrid interferometer using MUSIC resolution, the hybrid interferometer using the comparison approach to resolution and the hybrid-MUSIC approach. It is seen that the hybrid interferometer (MUSIC) is more accurate than the hybrid interferometer (comparison). On the other hand, hybrid interferometer (MUSIC) is not as accurate as the hybrid-MUSIC, but does not require excessive computational resources to achieve AOA estimates whose bias and standard deviations are much improved over other hybrid approaches as well as the linear phase interferometer.

Keywords

antenna arrays; antenna theory; array signal processing; broadband antennas; direction-of-arrival estimation; maximum likelihood estimation; radiowave interferometers; spiral antennas; MUSIC resolution; angle of arrival; broadband antennas; hybrid MUSIC algorithm; hybrid interferometer; linear phase interferometer; maximum likelihood estimation; single spiral antennas; standard deviations; Apertures; Frequency estimation; Hardware; Multiple signal classification; Parameter estimation; Phase estimation; Signal resolution; Space technology; Spirals; Wideband;

fLanguage

English

Publisher

ieee

Conference_Titel

Aerospace Conference, 2004. Proceedings. 2004 IEEE

ISSN

1095-323X

Print_ISBN

0-7803-8155-6

Type

conf

DOI

10.1109/AERO.2004.1367694

Filename

1367694