Autor: |
Shuang Qiu, Jian Lu, Yongshen Zhang, Yayun Cheng |
Jazyk: |
angličtina |
Rok vydání: |
2023 |
Předmět: |
|
Zdroj: |
Frontiers in Physics, Vol 11 (2023) |
Druh dokumentu: |
article |
ISSN: |
2296-424X |
DOI: |
10.3389/fphy.2023.1119806 |
Popis: |
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. |
Databáze: |
Directory of Open Access Journals |
Externí odkaz: |
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