Blind Direction-of-Arrival Estimation with Uniform Circular Array in Presence of Mutual Coupling
A blind direction-of-arrival (DOA) estimation algorithm based on the estimation of signal parameters via rotational invariance techniques (ESPRIT) is proposed for a uniform circular array (UCA) when strong electromagnetic mutual coupling is present. First, an updated UCA model with mutual coupling i...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2016-01-01
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| Series: | International Journal of Antennas and Propagation |
| Online Access: | http://dx.doi.org/10.1155/2016/8109013 |
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| author | Song Liu Lisheng Yang Shizhong Yang Qingping Jiang Haowei Wu |
| author_facet | Song Liu Lisheng Yang Shizhong Yang Qingping Jiang Haowei Wu |
| author_sort | Song Liu |
| collection | DOAJ |
| description | A blind direction-of-arrival (DOA) estimation algorithm based on the estimation of signal parameters via rotational invariance techniques (ESPRIT) is proposed for a uniform circular array (UCA) when strong electromagnetic mutual coupling is present. First, an updated UCA model with mutual coupling in a discrete Fourier transform (DFT) beam space is deduced, and the new manifold matrix is equal to the product of a centrosymmetric diagonal matrix and a Vandermonde-structure matrix. Then we carry out blind DOA estimation through a modified ESPRIT method, thus avoiding the need for spatial angular searching. In addition, two mutual coupling parameter estimation methods are presented after the DOAs have been estimated. Simulation results show that the new algorithm is reliable and effective especially for closely spaced signals. |
| format | Article |
| id | doaj-art-4d59c00302134b01a78ef2915f9cd933 |
| institution | Kabale University |
| issn | 1687-5869 1687-5877 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Antennas and Propagation |
| spelling | doaj-art-4d59c00302134b01a78ef2915f9cd9332025-08-20T03:36:21ZengWileyInternational Journal of Antennas and Propagation1687-58691687-58772016-01-01201610.1155/2016/81090138109013Blind Direction-of-Arrival Estimation with Uniform Circular Array in Presence of Mutual CouplingSong Liu0Lisheng Yang1Shizhong Yang2Qingping Jiang3Haowei Wu4Key Laboratory of Aerocraft Tracking Telemetering & Command and Communication, Ministry of Education, Chongqing University, Chongqing 400030, ChinaKey Laboratory of Aerocraft Tracking Telemetering & Command and Communication, Ministry of Education, Chongqing University, Chongqing 400030, ChinaKey Laboratory of Aerocraft Tracking Telemetering & Command and Communication, Ministry of Education, Chongqing University, Chongqing 400030, ChinaKey Laboratory of Aerocraft Tracking Telemetering & Command and Communication, Ministry of Education, Chongqing University, Chongqing 400030, ChinaKey Laboratory of Aerocraft Tracking Telemetering & Command and Communication, Ministry of Education, Chongqing University, Chongqing 400030, ChinaA blind direction-of-arrival (DOA) estimation algorithm based on the estimation of signal parameters via rotational invariance techniques (ESPRIT) is proposed for a uniform circular array (UCA) when strong electromagnetic mutual coupling is present. First, an updated UCA model with mutual coupling in a discrete Fourier transform (DFT) beam space is deduced, and the new manifold matrix is equal to the product of a centrosymmetric diagonal matrix and a Vandermonde-structure matrix. Then we carry out blind DOA estimation through a modified ESPRIT method, thus avoiding the need for spatial angular searching. In addition, two mutual coupling parameter estimation methods are presented after the DOAs have been estimated. Simulation results show that the new algorithm is reliable and effective especially for closely spaced signals.http://dx.doi.org/10.1155/2016/8109013 |
| spellingShingle | Song Liu Lisheng Yang Shizhong Yang Qingping Jiang Haowei Wu Blind Direction-of-Arrival Estimation with Uniform Circular Array in Presence of Mutual Coupling International Journal of Antennas and Propagation |
| title | Blind Direction-of-Arrival Estimation with Uniform Circular Array in Presence of Mutual Coupling |
| title_full | Blind Direction-of-Arrival Estimation with Uniform Circular Array in Presence of Mutual Coupling |
| title_fullStr | Blind Direction-of-Arrival Estimation with Uniform Circular Array in Presence of Mutual Coupling |
| title_full_unstemmed | Blind Direction-of-Arrival Estimation with Uniform Circular Array in Presence of Mutual Coupling |
| title_short | Blind Direction-of-Arrival Estimation with Uniform Circular Array in Presence of Mutual Coupling |
| title_sort | blind direction of arrival estimation with uniform circular array in presence of mutual coupling |
| url | http://dx.doi.org/10.1155/2016/8109013 |
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