Robust adaptive beamforming based on covariance matrix reconstruction with annular uncertainty set constraints.
A robust adaptive beamforming method based on the interference covariance matrix reconstruction with annular uncertainty set constraints is proposed to address the issues of covariance matrix mismatch and steering vector mismatch caused by the distortion of flexible array shapes. The proposed method...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Public Library of Science (PLoS)
2025-01-01
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| Series: | PLoS ONE |
| Online Access: | https://doi.org/10.1371/journal.pone.0327461 |
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| _version_ | 1849714542375862272 |
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| author | Gaoxiang Xing Zhixiang Yao Hongkai Wei Yunhua Hu |
| author_facet | Gaoxiang Xing Zhixiang Yao Hongkai Wei Yunhua Hu |
| author_sort | Gaoxiang Xing |
| collection | DOAJ |
| description | A robust adaptive beamforming method based on the interference covariance matrix reconstruction with annular uncertainty set constraints is proposed to address the issues of covariance matrix mismatch and steering vector mismatch caused by the distortion of flexible array shapes. The proposed method first eliminates the target components under the constraint of the annular uncertainty set to accurately re-construct the covariance matrix, and then corrects the steering vector using a constrained optimization method. This effectively reduces the impact of mismatch and significantly enhances the performance of the adaptive beamforming algorithm with array distortion, improving the robustness of the adaptive beamforming algorithm for flexible arrays. Simulation and sea trial data validate that the new method achieves a performance improvement of 4-10 dB. |
| format | Article |
| id | doaj-art-8bbbd4f2427146dbb8e71b508f932e95 |
| institution | DOAJ |
| issn | 1932-6203 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj-art-8bbbd4f2427146dbb8e71b508f932e952025-08-20T03:13:40ZengPublic Library of Science (PLoS)PLoS ONE1932-62032025-01-01207e032746110.1371/journal.pone.0327461Robust adaptive beamforming based on covariance matrix reconstruction with annular uncertainty set constraints.Gaoxiang XingZhixiang YaoHongkai WeiYunhua HuA robust adaptive beamforming method based on the interference covariance matrix reconstruction with annular uncertainty set constraints is proposed to address the issues of covariance matrix mismatch and steering vector mismatch caused by the distortion of flexible array shapes. The proposed method first eliminates the target components under the constraint of the annular uncertainty set to accurately re-construct the covariance matrix, and then corrects the steering vector using a constrained optimization method. This effectively reduces the impact of mismatch and significantly enhances the performance of the adaptive beamforming algorithm with array distortion, improving the robustness of the adaptive beamforming algorithm for flexible arrays. Simulation and sea trial data validate that the new method achieves a performance improvement of 4-10 dB.https://doi.org/10.1371/journal.pone.0327461 |
| spellingShingle | Gaoxiang Xing Zhixiang Yao Hongkai Wei Yunhua Hu Robust adaptive beamforming based on covariance matrix reconstruction with annular uncertainty set constraints. PLoS ONE |
| title | Robust adaptive beamforming based on covariance matrix reconstruction with annular uncertainty set constraints. |
| title_full | Robust adaptive beamforming based on covariance matrix reconstruction with annular uncertainty set constraints. |
| title_fullStr | Robust adaptive beamforming based on covariance matrix reconstruction with annular uncertainty set constraints. |
| title_full_unstemmed | Robust adaptive beamforming based on covariance matrix reconstruction with annular uncertainty set constraints. |
| title_short | Robust adaptive beamforming based on covariance matrix reconstruction with annular uncertainty set constraints. |
| title_sort | robust adaptive beamforming based on covariance matrix reconstruction with annular uncertainty set constraints |
| url | https://doi.org/10.1371/journal.pone.0327461 |
| work_keys_str_mv | AT gaoxiangxing robustadaptivebeamformingbasedoncovariancematrixreconstructionwithannularuncertaintysetconstraints AT zhixiangyao robustadaptivebeamformingbasedoncovariancematrixreconstructionwithannularuncertaintysetconstraints AT hongkaiwei robustadaptivebeamformingbasedoncovariancematrixreconstructionwithannularuncertaintysetconstraints AT yunhuahu robustadaptivebeamformingbasedoncovariancematrixreconstructionwithannularuncertaintysetconstraints |