TY  - CONF
ID  - SisLab128
UR  - https://eprints.uet.vnu.edu.vn/eprints/id/eprint/128/
A1  - Tran, Thi Thuy Quynh
A1  - Nguyen, Linh Trung
A1  - Phan, Anh
A1  - Abed-Meraim, Karim
Y1  - 2012/10/10/
N2  - 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.
KW  - Antennas;Direction of arrival estimation;Sensors;Direction of Arrival (DOA);Multiple Signal Classification (MUSIC);antennas without phase center (AWPC);uniform circular array (UCA);
TI  - Whole-Space Ambiguity Removal in DOA Estimation by AWPC Antenna
SP  - 337 
M2  - Hanoi, Vietnam
AV  - none
EP  - 340
T2  - The 2012 International Conference on Advanced Technologies for Communications (ATC)
ER  -