Accurate 2-D AOA Estimation and Ambiguity Resolution for a Single Source under Fixed Uniform Circular Arrays
This paper presents an analytic algorithm for accurate two-dimensional (2-D) angle of arrival (AOA) estimation of a single source under fixed uniform circular arrays (UCAs). Algebraic and explicit formulations for 2-D AOA estimation are first developed in the Fourier domain. It is shown that three i...
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2017-01-01
|
| Series: | International Journal of Antennas and Propagation |
| Online Access: | http://dx.doi.org/10.1155/2017/9489318 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832545682112643072 |
|---|---|
| author | Le Zuo Jin Pan |
| author_facet | Le Zuo Jin Pan |
| author_sort | Le Zuo |
| collection | DOAJ |
| description | This paper presents an analytic algorithm for accurate two-dimensional (2-D) angle of arrival (AOA) estimation of a single source under fixed uniform circular arrays (UCAs). Algebraic and explicit formulations for 2-D AOA estimation are first developed in the Fourier domain. It is shown that three is the minimum number of antennas for 2-D AOA estimation based on phase measurement. Then a signal model for phase extraction is established with equivalent phase noises through observations of signal samples corrupted by additive Gaussian white noise. Under fixed UCAs, 2-D AOA estimation of a single source would suffer from phase ambiguity, and hence, ambiguity resolution is also addressed in the Fourier domain by integer search. Numerical examples are provided to verify the effectiveness and appealing performance of the proposed 2-D AOA estimation algorithm. |
| format | Article |
| id | doaj-art-e9203f8dd50547d2bcdfdcd7d27eab11 |
| institution | Kabale University |
| issn | 1687-5869 1687-5877 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Antennas and Propagation |
| spelling | doaj-art-e9203f8dd50547d2bcdfdcd7d27eab112025-02-03T07:25:13ZengWileyInternational Journal of Antennas and Propagation1687-58691687-58772017-01-01201710.1155/2017/94893189489318Accurate 2-D AOA Estimation and Ambiguity Resolution for a Single Source under Fixed Uniform Circular ArraysLe Zuo0Jin Pan1Department of Microwave Engineering, University of Electronic Science and Technology of China, Chengdu 611731, ChinaDepartment of Microwave Engineering, University of Electronic Science and Technology of China, Chengdu 611731, ChinaThis paper presents an analytic algorithm for accurate two-dimensional (2-D) angle of arrival (AOA) estimation of a single source under fixed uniform circular arrays (UCAs). Algebraic and explicit formulations for 2-D AOA estimation are first developed in the Fourier domain. It is shown that three is the minimum number of antennas for 2-D AOA estimation based on phase measurement. Then a signal model for phase extraction is established with equivalent phase noises through observations of signal samples corrupted by additive Gaussian white noise. Under fixed UCAs, 2-D AOA estimation of a single source would suffer from phase ambiguity, and hence, ambiguity resolution is also addressed in the Fourier domain by integer search. Numerical examples are provided to verify the effectiveness and appealing performance of the proposed 2-D AOA estimation algorithm.http://dx.doi.org/10.1155/2017/9489318 |
| spellingShingle | Le Zuo Jin Pan Accurate 2-D AOA Estimation and Ambiguity Resolution for a Single Source under Fixed Uniform Circular Arrays International Journal of Antennas and Propagation |
| title | Accurate 2-D AOA Estimation and Ambiguity Resolution for a Single Source under Fixed Uniform Circular Arrays |
| title_full | Accurate 2-D AOA Estimation and Ambiguity Resolution for a Single Source under Fixed Uniform Circular Arrays |
| title_fullStr | Accurate 2-D AOA Estimation and Ambiguity Resolution for a Single Source under Fixed Uniform Circular Arrays |
| title_full_unstemmed | Accurate 2-D AOA Estimation and Ambiguity Resolution for a Single Source under Fixed Uniform Circular Arrays |
| title_short | Accurate 2-D AOA Estimation and Ambiguity Resolution for a Single Source under Fixed Uniform Circular Arrays |
| title_sort | accurate 2 d aoa estimation and ambiguity resolution for a single source under fixed uniform circular arrays |
| url | http://dx.doi.org/10.1155/2017/9489318 |
| work_keys_str_mv | AT lezuo accurate2daoaestimationandambiguityresolutionforasinglesourceunderfixeduniformcirculararrays AT jinpan accurate2daoaestimationandambiguityresolutionforasinglesourceunderfixeduniformcirculararrays |