DOA Estimation without Source Number for Cyber-Physical Interactions
In this paper, a direction of arrival (DOA) estimator is proposed to improve the cyber-physical interactions, which is based on the second-order statistics without a priori knowledge of the source number. The impact of noise will firstly be eliminated. Then the relationship between the processed cov...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2020-01-01
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| Series: | Complexity |
| Online Access: | http://dx.doi.org/10.1155/2020/9768361 |
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| _version_ | 1849406131627098112 |
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| author | Jianzhong Li Xiaobo Gu Ruidian Zhan Xiaoming Xiong Yuan Liu |
| author_facet | Jianzhong Li Xiaobo Gu Ruidian Zhan Xiaoming Xiong Yuan Liu |
| author_sort | Jianzhong Li |
| collection | DOAJ |
| description | In this paper, a direction of arrival (DOA) estimator is proposed to improve the cyber-physical interactions, which is based on the second-order statistics without a priori knowledge of the source number. The impact of noise will firstly be eliminated. Then the relationship between the processed covariance matrix and the steering matrix is studied. By applying the elementary column transformation, an oblique projector will be designed without the source number. At last, a rooting method will be adopted to estimate the DOAs with the constructed projector. Simulation results show that the proposed method performs as well as other methods, which requires that the source number must be known. |
| format | Article |
| id | doaj-art-522cfdc6f30a4d5781746b92ff2f3b8d |
| institution | Kabale University |
| issn | 1076-2787 1099-0526 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Complexity |
| spelling | doaj-art-522cfdc6f30a4d5781746b92ff2f3b8d2025-08-20T03:36:30ZengWileyComplexity1076-27871099-05262020-01-01202010.1155/2020/97683619768361DOA Estimation without Source Number for Cyber-Physical InteractionsJianzhong Li0Xiaobo Gu1Ruidian Zhan2Xiaoming Xiong3Yuan Liu4School of Automation, Guangdong University of Technology, Guangzhou 510000, ChinaSchool of Automation, Guangdong University of Technology, Guangzhou 510000, ChinaChipeye Microelectronics Foshan Ltd., Foshan, ChinaSchool of Automation, Guangdong University of Technology, Guangzhou 510000, ChinaSchool of Automation, Guangdong University of Technology, Guangzhou 510000, ChinaIn this paper, a direction of arrival (DOA) estimator is proposed to improve the cyber-physical interactions, which is based on the second-order statistics without a priori knowledge of the source number. The impact of noise will firstly be eliminated. Then the relationship between the processed covariance matrix and the steering matrix is studied. By applying the elementary column transformation, an oblique projector will be designed without the source number. At last, a rooting method will be adopted to estimate the DOAs with the constructed projector. Simulation results show that the proposed method performs as well as other methods, which requires that the source number must be known.http://dx.doi.org/10.1155/2020/9768361 |
| spellingShingle | Jianzhong Li Xiaobo Gu Ruidian Zhan Xiaoming Xiong Yuan Liu DOA Estimation without Source Number for Cyber-Physical Interactions Complexity |
| title | DOA Estimation without Source Number for Cyber-Physical Interactions |
| title_full | DOA Estimation without Source Number for Cyber-Physical Interactions |
| title_fullStr | DOA Estimation without Source Number for Cyber-Physical Interactions |
| title_full_unstemmed | DOA Estimation without Source Number for Cyber-Physical Interactions |
| title_short | DOA Estimation without Source Number for Cyber-Physical Interactions |
| title_sort | doa estimation without source number for cyber physical interactions |
| url | http://dx.doi.org/10.1155/2020/9768361 |
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