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.
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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.
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Subjects: | Electronics and Communications > Communications Electronics and Communications |
| Divisions: | Faculty of Electronics and Telecommunications (FET) |
| Depositing User: | Thi Thuy Quynh Tran |
| Date Deposited: | 19 Dec 2016 16:38 |
| Last Modified: | 19 Dec 2016 16:38 |
| URI: | http://eprints.uet.vnu.edu.vn/eprints/id/eprint/2013 |
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