Direction-of-arrival estimation using separated subarrays

Author

Hley, Fredriakt ; Ngdahl, Christere

Author_Institution

Dept. of Signals & Syst., Chalmers Univ. of Technol., Goteborg, Sweden

Volume

1

fYear

2000

fDate

Oct. 29 2000-Nov. 1 2000

Firstpage

585

Abstract

In this paper we study direction-of-arrival (DOA) estimation with a particular class of sparse linear arrays, characterized by two widely separated subarrays. Since a large array aperture is obtained with a small number of elements, this structure can provide very accurate angle estimates at a reasonable cost, but at the expense of near ambiguities. The potential and theoretical limitations in DOA estimation with this class of arrays are investigated. We evaluate the performances of DOA estimation algorithms and compare with theoretical bounds, taking the effects of near ambiguities into account.

Keywords

array signal processing; direction-of-arrival estimation; DOA; angle estimate; direction-of-arrival estimation; large array aperture; near ambiguities; performance; sparse linear arrays; widely separated subarray; Algorithm design and analysis; Apertures; Costs; Direction of arrival estimation; Gratings; Image sensors; Microwave technology; Performance evaluation; Sensor arrays; Sensor systems;

fLanguage

English

Publisher

ieee

Conference_Titel

Signals, Systems and Computers, 2000. Conference Record of the Thirty-Fourth Asilomar Conference on

Conference_Location

Pacific Grove, CA, USA

ISSN

1058-6393

Print_ISBN

0-7803-6514-3

Type

conf

DOI

10.1109/ACSSC.2000.911022

Filename

911022