Direction-of-Arrival Estimation of Closely Spaced Emitters Using Compact Arrays
Performance evaluation of direction-of-arrival (DOA) estimation algorithms has continuously drawn significant attention in the past years. Most previous studies were conducted under the situation that antenna element separation is about half wavelength in order to avoid the appearance of grating lob...
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| Format: | Article |
| Language: | English |
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Wiley
2013-01-01
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| Series: | International Journal of Antennas and Propagation |
| Online Access: | http://dx.doi.org/10.1155/2013/104848 |
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| _version_ | 1850220463480897536 |
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| author | Hoi-Shun Lui Hon Tat Hui |
| author_facet | Hoi-Shun Lui Hon Tat Hui |
| author_sort | Hoi-Shun Lui |
| collection | DOAJ |
| description | Performance evaluation of direction-of-arrival (DOA) estimation algorithms has continuously drawn significant attention in the past years. Most previous studies were conducted under the situation that antenna element separation is about half wavelength in order to avoid the appearance of grating lobes. On the other hand, recent developments in wireless communications have favoured the use of portable devices that utilize compact arrays with antenna element separations of less than half wavelength. Performance evaluation of DOA estimation algorithms employing compact arrays is an important and fundamental issue, but it has not been fully studied. In this paper, the performance of the matrix pencil method (MPM) that applies to DOA estimations is investigated through Monte Carlo simulations. The results show that closely spaced emitters can be accurately resolved using linear compact array with an array aperture as small as around half wavelength. |
| format | Article |
| id | doaj-art-7b519a159da14b7d8f9e17abdc7f77a8 |
| institution | OA Journals |
| issn | 1687-5869 1687-5877 |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Antennas and Propagation |
| spelling | doaj-art-7b519a159da14b7d8f9e17abdc7f77a82025-08-20T02:07:03ZengWileyInternational Journal of Antennas and Propagation1687-58691687-58772013-01-01201310.1155/2013/104848104848Direction-of-Arrival Estimation of Closely Spaced Emitters Using Compact ArraysHoi-Shun Lui0Hon Tat Hui1Department of Signals and Systems, Chalmers University of Technology, 412 96 Gothenburg, SwedenDepartment of Electrical and Computer Engineering, National University of Singapore, 117576, SingaporePerformance evaluation of direction-of-arrival (DOA) estimation algorithms has continuously drawn significant attention in the past years. Most previous studies were conducted under the situation that antenna element separation is about half wavelength in order to avoid the appearance of grating lobes. On the other hand, recent developments in wireless communications have favoured the use of portable devices that utilize compact arrays with antenna element separations of less than half wavelength. Performance evaluation of DOA estimation algorithms employing compact arrays is an important and fundamental issue, but it has not been fully studied. In this paper, the performance of the matrix pencil method (MPM) that applies to DOA estimations is investigated through Monte Carlo simulations. The results show that closely spaced emitters can be accurately resolved using linear compact array with an array aperture as small as around half wavelength.http://dx.doi.org/10.1155/2013/104848 |
| spellingShingle | Hoi-Shun Lui Hon Tat Hui Direction-of-Arrival Estimation of Closely Spaced Emitters Using Compact Arrays International Journal of Antennas and Propagation |
| title | Direction-of-Arrival Estimation of Closely Spaced Emitters Using Compact Arrays |
| title_full | Direction-of-Arrival Estimation of Closely Spaced Emitters Using Compact Arrays |
| title_fullStr | Direction-of-Arrival Estimation of Closely Spaced Emitters Using Compact Arrays |
| title_full_unstemmed | Direction-of-Arrival Estimation of Closely Spaced Emitters Using Compact Arrays |
| title_short | Direction-of-Arrival Estimation of Closely Spaced Emitters Using Compact Arrays |
| title_sort | direction of arrival estimation of closely spaced emitters using compact arrays |
| url | http://dx.doi.org/10.1155/2013/104848 |
| work_keys_str_mv | AT hoishunlui directionofarrivalestimationofcloselyspacedemittersusingcompactarrays AT hontathui directionofarrivalestimationofcloselyspacedemittersusingcompactarrays |