eprintid: 2013 rev_number: 11 eprint_status: archive userid: 315 dir: disk0/00/00/20/13 datestamp: 2016-12-19 16:38:19 lastmod: 2016-12-19 16:38:19 status_changed: 2016-12-19 16:38:19 type: conference_item metadata_visibility: show creators_name: Tran, Thi Thuy Quynh creators_name: Nguyen, Linh Trung creators_name: Phan, Anh creators_name: Karim, Abed Meraim creators_id: quynhttt@vnu.edu.vn creators_id: linhtrung@vnu.edu.vn creators_id: phananh@rev.org.vn creators_id: karim.abed-meraim@univ-orleans.fr title: On Optimization of Antennas without Phase Center for DOA estimation ispublished: pub subjects: Communications subjects: ECE divisions: fac_fet abstract: Antennas without phase center (AWPC) are applied to resolve the less-sensors-than-sources problem in direction-ofarrival (DOA) estimation using subspace methods, typically, the well-known multiple signal classification (MUSIC) algorithm. This paper focuses on optimization of some design parameters of such antennas, including the rotation angle, the rotation step number and distances of two dipole couples, in order to improve the ambiguity and accuracy of all estimators which use AWPC structure. These optimization problems are formulated and solved by using Cramer-Rao bound (CRB) and ambiguity checking criteria. Specially, the parameters were optimized to avoid issues related to the ambiguity for half space localization problem while minimizing the CRB for improving the DOA estimation accuracy. date: 2012-08-01 date_type: completed contact_email: quynhttt@vnu.edu.vn full_text_status: public pres_type: paper pagerange: 421-425 event_title: The 4th International Conference on Communications and Electronics (ICCE) event_location: Hue, Vietnam event_dates: 1-3 August 2012 event_type: conference refereed: TRUE citation: Tran, Thi Thuy Quynh and Nguyen, Linh Trung and Phan, Anh and Karim, Abed Meraim (2012) On Optimization of Antennas without Phase Center for DOA estimation. In: The 4th International Conference on Communications and Electronics (ICCE), 1-3 August 2012, Hue, Vietnam. document_url: https://eprints.uet.vnu.edu.vn/eprints/id/eprint/2013/1/ICCE2012_Paper.pdf