DOA Estimation of Noncircular Signals Using Quaternions
The two-dimensional (2D) direction-of-arrival (DOA) estimation problem for noncircular signals using quaternions is considered in this paper. In the framework of quaternions, we reconstruct the conjugate augmented output vector which reduces the dimension of covariance matrix. Compared with existing...
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| Format: | Article |
| Language: | English |
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Wiley
2017-01-01
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| Series: | International Journal of Antennas and Propagation |
| Online Access: | http://dx.doi.org/10.1155/2017/9848169 |
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| _version_ | 1850167541583839232 |
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| author | Tianzhen Meng Minjie Wu Naichang Yuan |
| author_facet | Tianzhen Meng Minjie Wu Naichang Yuan |
| author_sort | Tianzhen Meng |
| collection | DOAJ |
| description | The two-dimensional (2D) direction-of-arrival (DOA) estimation problem for noncircular signals using quaternions is considered in this paper. In the framework of quaternions, we reconstruct the conjugate augmented output vector which reduces the dimension of covariance matrix. Compared with existing methods, the proposed one has two main advantages. Firstly, the estimation accuracy is higher since quaternions have stronger orthogonality. Secondly, the dimension of covariance matrix is reduced by half which decreases the computational complexity. Simulation results are presented verifying the efficacy of the algorithm. |
| format | Article |
| id | doaj-art-e6dbd1bdbd214d89abd2f85a723ff185 |
| institution | OA Journals |
| 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-e6dbd1bdbd214d89abd2f85a723ff1852025-08-20T02:21:10ZengWileyInternational Journal of Antennas and Propagation1687-58691687-58772017-01-01201710.1155/2017/98481699848169DOA Estimation of Noncircular Signals Using QuaternionsTianzhen Meng0Minjie Wu1Naichang Yuan2Department of Electronic Science and Engineering, National University of Defense Technology, Deya Street 109, Changsha 410073, ChinaDepartment of Electronic Science and Engineering, National University of Defense Technology, Deya Street 109, Changsha 410073, ChinaDepartment of Electronic Science and Engineering, National University of Defense Technology, Deya Street 109, Changsha 410073, ChinaThe two-dimensional (2D) direction-of-arrival (DOA) estimation problem for noncircular signals using quaternions is considered in this paper. In the framework of quaternions, we reconstruct the conjugate augmented output vector which reduces the dimension of covariance matrix. Compared with existing methods, the proposed one has two main advantages. Firstly, the estimation accuracy is higher since quaternions have stronger orthogonality. Secondly, the dimension of covariance matrix is reduced by half which decreases the computational complexity. Simulation results are presented verifying the efficacy of the algorithm.http://dx.doi.org/10.1155/2017/9848169 |
| spellingShingle | Tianzhen Meng Minjie Wu Naichang Yuan DOA Estimation of Noncircular Signals Using Quaternions International Journal of Antennas and Propagation |
| title | DOA Estimation of Noncircular Signals Using Quaternions |
| title_full | DOA Estimation of Noncircular Signals Using Quaternions |
| title_fullStr | DOA Estimation of Noncircular Signals Using Quaternions |
| title_full_unstemmed | DOA Estimation of Noncircular Signals Using Quaternions |
| title_short | DOA Estimation of Noncircular Signals Using Quaternions |
| title_sort | doa estimation of noncircular signals using quaternions |
| url | http://dx.doi.org/10.1155/2017/9848169 |
| work_keys_str_mv | AT tianzhenmeng doaestimationofnoncircularsignalsusingquaternions AT minjiewu doaestimationofnoncircularsignalsusingquaternions AT naichangyuan doaestimationofnoncircularsignalsusingquaternions |