eprintid: 128
rev_number: 13
eprint_status: archive
userid: 17
dir: disk0/00/00/01/28
datestamp: 2013-01-25 07:15:41
lastmod: 2016-12-07 15:47:57
status_changed: 2013-01-25 07:15:41
type: conference_item
metadata_visibility: show
creators_name: Tran, Thi Thuy Quynh
creators_name: Nguyen, Linh Trung
creators_name: Phan, Anh
creators_name: Abed-Meraim, Karim
creators_id: quynhttt@vnu.edu.vn
creators_id: linhtrung@vnu.edu.vn
creators_id: phananh@vnu.edu.vn
title: Whole-Space Ambiguity Removal in DOA Estimation by AWPC Antenna
ispublished: pub
subjects: Communications
subjects: ECE
divisions: fac_fet
keywords: Antennas;Direction of arrival estimation;Sensors;Direction of Arrival (DOA);Multiple Signal Classification (MUSIC);antennas without phase center (AWPC);uniform circular array (UCA);
abstract: Antennas without phase center (AWPC) have been used to estimate direction of arrival (DOA) specially in less sensors than sources case. The similarity of two or more steering vectors corresponding to widely separated directions in the array manifold causes ambiguity in the DOA estimation. Recently, \textit{half}-space ambiguity resolution has been done by optimizing the structure of the AWPC, based on Cramer-Rao bound. This paper further proposes a novel method for resolving \textit{whole}-space ambiguity in the DOA estimation by using a uniform circular array (UCA) with multiple optimal AWPC sensors.  The optimal number of AWPC sensors in moderate-size UCAs is also obtained by numerical optimization.
date: 2012-10-10
date_type: published
full_text_status: none
pres_type: paper
pagerange: 337 -340
event_title: The 2012 International Conference on Advanced Technologies for Communications (ATC)
event_location: Hanoi, Vietnam
event_dates: 10-12 October 2012
event_type: conference
refereed: TRUE
citation:   Tran, Thi Thuy Quynh and Nguyen, Linh Trung and Phan, Anh and Abed-Meraim, Karim  (2012) Whole-Space Ambiguity Removal in DOA Estimation by AWPC Antenna.  In: The 2012 International Conference on Advanced Technologies for Communications (ATC), 10-12 October 2012, Hanoi, Vietnam.