Robust Quaternion-valued Wideband Adaptive Beamforming
A robust quaternion-valued wideband adaptive beamformer is proposed, in which a quaternion is utilized to arrange the output of the array element. By exploiting the augmented envelope alignment technique, adopting the three involutions of quaternion, and incorporating the noncircular information of...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
China Science Publishing & Media Ltd. (CSPM)
2019-02-01
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| Series: | Leida xuebao |
| Subjects: | |
| Online Access: | http://radars.ie.ac.cn/article/doi/10.12000/JR18083?viewType=HTML |
| _version_ | 1797426495452348416 |
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| author | DUAN Xiaofei LIU Zhiwen XU Yougen |
| author_facet | DUAN Xiaofei LIU Zhiwen XU Yougen |
| author_sort | DUAN Xiaofei |
| collection | DOAJ |
| description | A robust quaternion-valued wideband adaptive beamformer is proposed, in which a quaternion is utilized to arrange the output of the array element. By exploiting the augmented envelope alignment technique, adopting the three involutions of quaternion, and incorporating the noncircular information of the signal simultaneously, a quaternion-valued wideband augmented signal model is established to achieve the robust adaptive beamforming based on signal subspace projection. Compared with other wideband beamformers, the proposed scheme exhibits a better performance in extracting noncircular signals by array aperture extension, and is insensitive to the pointing error. The simulation results verify the efficiency of the proposed beamformer. |
| first_indexed | 2024-03-09T08:31:00Z |
| format | Article |
| id | doaj.art-ac091957c2be4636a186050935083520 |
| institution | Directory Open Access Journal |
| issn | 2095-283X 2095-283X |
| language | English |
| last_indexed | 2024-03-09T08:31:00Z |
| publishDate | 2019-02-01 |
| publisher | China Science Publishing & Media Ltd. (CSPM) |
| record_format | Article |
| series | Leida xuebao |
| spelling | doaj.art-ac091957c2be4636a1860509350835202023-12-02T19:56:29ZengChina Science Publishing & Media Ltd. (CSPM)Leida xuebao2095-283X2095-283X2019-02-018111712410.12000/JR18083Robust Quaternion-valued Wideband Adaptive BeamformingDUAN Xiaofei0LIU Zhiwen1XU Yougen2(School of Information and Electronics, Beijing Institute of Technology, Beijing 100081, China)(School of Information and Electronics, Beijing Institute of Technology, Beijing 100081, China)(School of Information and Electronics, Beijing Institute of Technology, Beijing 100081, China)A robust quaternion-valued wideband adaptive beamformer is proposed, in which a quaternion is utilized to arrange the output of the array element. By exploiting the augmented envelope alignment technique, adopting the three involutions of quaternion, and incorporating the noncircular information of the signal simultaneously, a quaternion-valued wideband augmented signal model is established to achieve the robust adaptive beamforming based on signal subspace projection. Compared with other wideband beamformers, the proposed scheme exhibits a better performance in extracting noncircular signals by array aperture extension, and is insensitive to the pointing error. The simulation results verify the efficiency of the proposed beamformer.http://radars.ie.ac.cn/article/doi/10.12000/JR18083?viewType=HTMLWideband array signal processingRobust adaptive beamformingQuaternionNoncircular signal |
| spellingShingle | DUAN Xiaofei LIU Zhiwen XU Yougen Robust Quaternion-valued Wideband Adaptive Beamforming Leida xuebao Wideband array signal processing Robust adaptive beamforming Quaternion Noncircular signal |
| title | Robust Quaternion-valued Wideband Adaptive Beamforming |
| title_full | Robust Quaternion-valued Wideband Adaptive Beamforming |
| title_fullStr | Robust Quaternion-valued Wideband Adaptive Beamforming |
| title_full_unstemmed | Robust Quaternion-valued Wideband Adaptive Beamforming |
| title_short | Robust Quaternion-valued Wideband Adaptive Beamforming |
| title_sort | robust quaternion valued wideband adaptive beamforming |
| topic | Wideband array signal processing Robust adaptive beamforming Quaternion Noncircular signal |
| url | http://radars.ie.ac.cn/article/doi/10.12000/JR18083?viewType=HTML |
| work_keys_str_mv | AT duanxiaofei robustquaternionvaluedwidebandadaptivebeamforming AT liuzhiwen robustquaternionvaluedwidebandadaptivebeamforming AT xuyougen robustquaternionvaluedwidebandadaptivebeamforming |