Direction of arrival estimation based on modified fast off‐grid L1‐SVD
Abstract This paper proposes a modified fast off‐grid L1‐SVD (M‐FOGL1SVD) method for direction of arrival (DOA) estimation. Unlike FOGL1SVD, after obtaining the positions of the nonzero rows of the signal sources, the off‐grid overcomplete basis matrix is used to update the signal sources, thus impr...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2022-01-01
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| Series: | Electronics Letters |
| Subjects: | |
| Online Access: | https://doi.org/10.1049/ell2.12341 |
| _version_ | 1798033266449580032 |
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| author | Xiangjun Xu Mingwei Shen Xiaohuan Wu Di Wu Daiyin Zhu |
| author_facet | Xiangjun Xu Mingwei Shen Xiaohuan Wu Di Wu Daiyin Zhu |
| author_sort | Xiangjun Xu |
| collection | DOAJ |
| description | Abstract This paper proposes a modified fast off‐grid L1‐SVD (M‐FOGL1SVD) method for direction of arrival (DOA) estimation. Unlike FOGL1SVD, after obtaining the positions of the nonzero rows of the signal sources, the off‐grid overcomplete basis matrix is used to update the signal sources, thus improving the estimation accuracy of it. In addition, to reduce the approximate error of the first‐order off‐grid model, a second‐order off‐grid model is introduced through a further Taylor expansion of the steering vector. Finally, the formula for solving the off‐grid gap under the novel model is derived. Extensive simulation results indicate that the proposed algorithm has better performance than FOGL1SVD in terms of DOA estimation precision. |
| first_indexed | 2024-04-11T20:26:32Z |
| format | Article |
| id | doaj.art-e0a955df401247acba4b6e951d7b29e2 |
| institution | Directory Open Access Journal |
| issn | 0013-5194 1350-911X |
| language | English |
| last_indexed | 2024-04-11T20:26:32Z |
| publishDate | 2022-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Electronics Letters |
| spelling | doaj.art-e0a955df401247acba4b6e951d7b29e22022-12-22T04:04:38ZengWileyElectronics Letters0013-51941350-911X2022-01-01581323410.1049/ell2.12341Direction of arrival estimation based on modified fast off‐grid L1‐SVDXiangjun Xu0Mingwei Shen1Xiaohuan Wu2Di Wu3Daiyin Zhu4College of Computer and Information Engineering Hohai University Nanjing ChinaCollege of Computer and Information Engineering Hohai University Nanjing ChinaCollege of Telecommunications and Information Engineering Nanjing University of Posts and Telecommunications Nanjing ChinaKey Laboratory of Radar Imaging and Microwave Photonics and Ministry of Education Nanjing University of Aeronautics and Astronautics Nanjing ChinaKey Laboratory of Radar Imaging and Microwave Photonics and Ministry of Education Nanjing University of Aeronautics and Astronautics Nanjing ChinaAbstract This paper proposes a modified fast off‐grid L1‐SVD (M‐FOGL1SVD) method for direction of arrival (DOA) estimation. Unlike FOGL1SVD, after obtaining the positions of the nonzero rows of the signal sources, the off‐grid overcomplete basis matrix is used to update the signal sources, thus improving the estimation accuracy of it. In addition, to reduce the approximate error of the first‐order off‐grid model, a second‐order off‐grid model is introduced through a further Taylor expansion of the steering vector. Finally, the formula for solving the off‐grid gap under the novel model is derived. Extensive simulation results indicate that the proposed algorithm has better performance than FOGL1SVD in terms of DOA estimation precision.https://doi.org/10.1049/ell2.12341AlgebraSignal processing and detectionSignal processing theoryAlgebra |
| spellingShingle | Xiangjun Xu Mingwei Shen Xiaohuan Wu Di Wu Daiyin Zhu Direction of arrival estimation based on modified fast off‐grid L1‐SVD Electronics Letters Algebra Signal processing and detection Signal processing theory Algebra |
| title | Direction of arrival estimation based on modified fast off‐grid L1‐SVD |
| title_full | Direction of arrival estimation based on modified fast off‐grid L1‐SVD |
| title_fullStr | Direction of arrival estimation based on modified fast off‐grid L1‐SVD |
| title_full_unstemmed | Direction of arrival estimation based on modified fast off‐grid L1‐SVD |
| title_short | Direction of arrival estimation based on modified fast off‐grid L1‐SVD |
| title_sort | direction of arrival estimation based on modified fast off grid l1 svd |
| topic | Algebra Signal processing and detection Signal processing theory Algebra |
| url | https://doi.org/10.1049/ell2.12341 |
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