An Efficient 2D DOA Estimation Algorithm Based on OMP for Rectangular Array
Recently, orthogonal matching pursuit (OMP) has been widely used in direction of arrival (DOA) studies, which not only greatly improves the resolution of DOA, but can also be applied to single-snapshot and coherent source cases. When applying the OMP algorithm to the rectangular array DOA of the mil...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-03-01
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| Series: | Electronics |
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| Online Access: | https://www.mdpi.com/2079-9292/12/7/1634 |
| _version_ | 1797608108822888448 |
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| author | Chuang Wang Jianmin Hu Qunying Zhang Xinhao Yuan |
| author_facet | Chuang Wang Jianmin Hu Qunying Zhang Xinhao Yuan |
| author_sort | Chuang Wang |
| collection | DOAJ |
| description | Recently, orthogonal matching pursuit (OMP) has been widely used in direction of arrival (DOA) studies, which not only greatly improves the resolution of DOA, but can also be applied to single-snapshot and coherent source cases. When applying the OMP algorithm to the rectangular array DOA of the millimeter-wave radar, it is necessary to reshape the two-dimensional (2D) signal into a long one-dimensional (1D) signal. However, the long 1D signal will greatly increase the number and length of atoms in the complete dictionary of the OMP algorithm, which will greatly increase the amount of computation. Taking advantage of the sparsity of targets in the DOA space, an efficient 2D DOA estimation algorithm based on OMP for rectangular array is proposed. The main idea is to reduce the number of atoms in the complete dictionary of the OMP algorithm, thereby greatly reducing the amount of computation required. A simulation verifies that the efficiency of the proposed algorithm is much higher than the conventional algorithm with almost the same estimation accuracy. |
| first_indexed | 2024-03-11T05:39:03Z |
| format | Article |
| id | doaj.art-a107f702917a41c7b4292f497d896859 |
| institution | Directory Open Access Journal |
| issn | 2079-9292 |
| language | English |
| last_indexed | 2024-03-11T05:39:03Z |
| publishDate | 2023-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Electronics |
| spelling | doaj.art-a107f702917a41c7b4292f497d8968592023-11-17T16:33:24ZengMDPI AGElectronics2079-92922023-03-01127163410.3390/electronics12071634An Efficient 2D DOA Estimation Algorithm Based on OMP for Rectangular ArrayChuang Wang0Jianmin Hu1Qunying Zhang2Xinhao Yuan3Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100094, ChinaGBA Branch of Aerospace Information Research Institute, Chinese Academy of Sciences, Guangzhou 510530, ChinaAerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100094, ChinaGBA Branch of Aerospace Information Research Institute, Chinese Academy of Sciences, Guangzhou 510530, ChinaRecently, orthogonal matching pursuit (OMP) has been widely used in direction of arrival (DOA) studies, which not only greatly improves the resolution of DOA, but can also be applied to single-snapshot and coherent source cases. When applying the OMP algorithm to the rectangular array DOA of the millimeter-wave radar, it is necessary to reshape the two-dimensional (2D) signal into a long one-dimensional (1D) signal. However, the long 1D signal will greatly increase the number and length of atoms in the complete dictionary of the OMP algorithm, which will greatly increase the amount of computation. Taking advantage of the sparsity of targets in the DOA space, an efficient 2D DOA estimation algorithm based on OMP for rectangular array is proposed. The main idea is to reduce the number of atoms in the complete dictionary of the OMP algorithm, thereby greatly reducing the amount of computation required. A simulation verifies that the efficiency of the proposed algorithm is much higher than the conventional algorithm with almost the same estimation accuracy.https://www.mdpi.com/2079-9292/12/7/1634orthogonal matching pursuit (OMP)direction of arrival (DOA)two-dimensional (2D)rectangular array |
| spellingShingle | Chuang Wang Jianmin Hu Qunying Zhang Xinhao Yuan An Efficient 2D DOA Estimation Algorithm Based on OMP for Rectangular Array Electronics orthogonal matching pursuit (OMP) direction of arrival (DOA) two-dimensional (2D) rectangular array |
| title | An Efficient 2D DOA Estimation Algorithm Based on OMP for Rectangular Array |
| title_full | An Efficient 2D DOA Estimation Algorithm Based on OMP for Rectangular Array |
| title_fullStr | An Efficient 2D DOA Estimation Algorithm Based on OMP for Rectangular Array |
| title_full_unstemmed | An Efficient 2D DOA Estimation Algorithm Based on OMP for Rectangular Array |
| title_short | An Efficient 2D DOA Estimation Algorithm Based on OMP for Rectangular Array |
| title_sort | efficient 2d doa estimation algorithm based on omp for rectangular array |
| topic | orthogonal matching pursuit (OMP) direction of arrival (DOA) two-dimensional (2D) rectangular array |
| url | https://www.mdpi.com/2079-9292/12/7/1634 |
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