Artifact suppression using cross-circular polarization for millimeter-wave imaging
Millimeter-wave imaging is widely applied to radar detection, personnel security inspection, environmental perception, and so on. Multipath artifact is a common phenomenon in active millimeter-wave (AMMW) imaging and is difficult to be removed. The suppression methods in image reconstruction and pos...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2023-03-01
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| Series: | Frontiers in Physics |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/fphy.2023.1119806/full |
| _version_ | 1797866014210260992 |
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| author | Shuang Qiu Shuang Qiu Jian Lu Yongshen Zhang Yayun Cheng Yayun Cheng |
| author_facet | Shuang Qiu Shuang Qiu Jian Lu Yongshen Zhang Yayun Cheng Yayun Cheng |
| author_sort | Shuang Qiu |
| collection | DOAJ |
| description | Millimeter-wave imaging is widely applied to radar detection, personnel security inspection, environmental perception, and so on. Multipath artifact is a common phenomenon in active millimeter-wave (AMMW) imaging and is difficult to be removed. The suppression methods in image reconstruction and post-processing stage are usually complex or time-consuming. This report proposes a cross-polarization method to suppress multipath artifacts between equivalent two-cylinder structures before image reconstruction. The physical mechanisms of co-polarization and cross-polarization imaging are revealed. The suppression effectiveness is demonstrated by conducting W-band AMMW imaging simulation and measurement experiments of a typical multipath scenario at the central frequency of 100 GHz (97 ∼103 GHz). The proposed method can directly reconstruct the image with artifact suppression and reduce the pressure of post-processing. |
| first_indexed | 2024-04-09T23:18:16Z |
| format | Article |
| id | doaj.art-29dfd57172ad45c69c69229c3a14fcb4 |
| institution | Directory Open Access Journal |
| issn | 2296-424X |
| language | English |
| last_indexed | 2024-04-09T23:18:16Z |
| publishDate | 2023-03-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Physics |
| spelling | doaj.art-29dfd57172ad45c69c69229c3a14fcb42023-03-22T05:17:20ZengFrontiers Media S.A.Frontiers in Physics2296-424X2023-03-011110.3389/fphy.2023.11198061119806Artifact suppression using cross-circular polarization for millimeter-wave imagingShuang Qiu0Shuang Qiu1Jian Lu2Yongshen Zhang3Yayun Cheng4Yayun Cheng5School of Electronics and Information Engineering, Harbin Institute of Technology, Harbin, ChinaDepartment of Engineering Physics, Tsinghua University, Beijing, ChinaDepartment of Engineering Physics, Tsinghua University, Beijing, ChinaDepartment of Engineering Physics, Tsinghua University, Beijing, ChinaSchool of Electronics and Information Engineering, Harbin Institute of Technology, Harbin, ChinaDepartment of Engineering Physics, Tsinghua University, Beijing, ChinaMillimeter-wave imaging is widely applied to radar detection, personnel security inspection, environmental perception, and so on. Multipath artifact is a common phenomenon in active millimeter-wave (AMMW) imaging and is difficult to be removed. The suppression methods in image reconstruction and post-processing stage are usually complex or time-consuming. This report proposes a cross-polarization method to suppress multipath artifacts between equivalent two-cylinder structures before image reconstruction. The physical mechanisms of co-polarization and cross-polarization imaging are revealed. The suppression effectiveness is demonstrated by conducting W-band AMMW imaging simulation and measurement experiments of a typical multipath scenario at the central frequency of 100 GHz (97 ∼103 GHz). The proposed method can directly reconstruct the image with artifact suppression and reduce the pressure of post-processing.https://www.frontiersin.org/articles/10.3389/fphy.2023.1119806/fullmillimeter-wave imagingpolarizationartifact suppressionimage reconstructionsecurity inspection |
| spellingShingle | Shuang Qiu Shuang Qiu Jian Lu Yongshen Zhang Yayun Cheng Yayun Cheng Artifact suppression using cross-circular polarization for millimeter-wave imaging Frontiers in Physics millimeter-wave imaging polarization artifact suppression image reconstruction security inspection |
| title | Artifact suppression using cross-circular polarization for millimeter-wave imaging |
| title_full | Artifact suppression using cross-circular polarization for millimeter-wave imaging |
| title_fullStr | Artifact suppression using cross-circular polarization for millimeter-wave imaging |
| title_full_unstemmed | Artifact suppression using cross-circular polarization for millimeter-wave imaging |
| title_short | Artifact suppression using cross-circular polarization for millimeter-wave imaging |
| title_sort | artifact suppression using cross circular polarization for millimeter wave imaging |
| topic | millimeter-wave imaging polarization artifact suppression image reconstruction security inspection |
| url | https://www.frontiersin.org/articles/10.3389/fphy.2023.1119806/full |
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