Title :
Direction-of-arrival estimation using separated subarrays
Author :
Hley, Fredriakt ; Ngdahl, Christere
Author_Institution :
Dept. of Signals & Syst., Chalmers Univ. of Technol., Goteborg, Sweden
fDate :
Oct. 29 2000-Nov. 1 2000
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;
Conference_Titel :
Signals, Systems and Computers, 2000. Conference Record of the Thirty-Fourth Asilomar Conference on
Conference_Location :
Pacific Grove, CA, USA
Print_ISBN :
0-7803-6514-3
DOI :
10.1109/ACSSC.2000.911022
