Synchronization for mini‐UAV‐based high‐resolution BiSAR systems: Lost direct signal estimation based on Hampel filtering
Abstract In mini‐unmanned aerial vehicle‐based high‐resolution bistatic synthetic aperture radar systems, the rotation of the unmanned aerial vehicle platforms will cause direct signal loss, resulting in the reduction of synchronization error compensation accuracy. Here, a synchronization algorithm...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2022-10-01
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| Series: | Electronics Letters |
| Online Access: | https://doi.org/10.1049/ell2.12606 |
| _version_ | 1797900588451627008 |
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| author | Zhanze Wang Feifeng Liu Shuyao Zhang Zhixiang Xu |
| author_facet | Zhanze Wang Feifeng Liu Shuyao Zhang Zhixiang Xu |
| author_sort | Zhanze Wang |
| collection | DOAJ |
| description | Abstract In mini‐unmanned aerial vehicle‐based high‐resolution bistatic synthetic aperture radar systems, the rotation of the unmanned aerial vehicle platforms will cause direct signal loss, resulting in the reduction of synchronization error compensation accuracy. Here, a synchronization algorithm is proposed to estimate the lost direct signal. First, bistatic time and phase synchronization signal models are established. Then, Hampel filtering is used to estimate the time delay of the lost direct signal, and the time and phase synchronization errors are estimated based on third‐order polynomial fitting. A high‐resolution synthetic aperture radar image is used to demonstrate the validity of the proposed algorithm in mini‐unmanned aerial vehicle‐based high‐resolution bistatic synthetic aperture radar systems. |
| first_indexed | 2024-04-10T08:48:20Z |
| format | Article |
| id | doaj.art-c2b25993d00a4bc5b16e32ea297472b8 |
| institution | Directory Open Access Journal |
| issn | 0013-5194 1350-911X |
| language | English |
| last_indexed | 2024-04-10T08:48:20Z |
| publishDate | 2022-10-01 |
| publisher | Wiley |
| record_format | Article |
| series | Electronics Letters |
| spelling | doaj.art-c2b25993d00a4bc5b16e32ea297472b82023-02-22T06:31:08ZengWileyElectronics Letters0013-51941350-911X2022-10-01582180780910.1049/ell2.12606Synchronization for mini‐UAV‐based high‐resolution BiSAR systems: Lost direct signal estimation based on Hampel filteringZhanze Wang0Feifeng Liu1Shuyao Zhang2Zhixiang Xu3School of Information and Electronics Beijing Institute of Technology Beijing ChinaSchool of Information and Electronics Beijing Institute of Technology Beijing ChinaSchool of Information and Electronics Beijing Institute of Technology Beijing ChinaSchool of Information and Electronics Beijing Institute of Technology Beijing ChinaAbstract In mini‐unmanned aerial vehicle‐based high‐resolution bistatic synthetic aperture radar systems, the rotation of the unmanned aerial vehicle platforms will cause direct signal loss, resulting in the reduction of synchronization error compensation accuracy. Here, a synchronization algorithm is proposed to estimate the lost direct signal. First, bistatic time and phase synchronization signal models are established. Then, Hampel filtering is used to estimate the time delay of the lost direct signal, and the time and phase synchronization errors are estimated based on third‐order polynomial fitting. A high‐resolution synthetic aperture radar image is used to demonstrate the validity of the proposed algorithm in mini‐unmanned aerial vehicle‐based high‐resolution bistatic synthetic aperture radar systems.https://doi.org/10.1049/ell2.12606 |
| spellingShingle | Zhanze Wang Feifeng Liu Shuyao Zhang Zhixiang Xu Synchronization for mini‐UAV‐based high‐resolution BiSAR systems: Lost direct signal estimation based on Hampel filtering Electronics Letters |
| title | Synchronization for mini‐UAV‐based high‐resolution BiSAR systems: Lost direct signal estimation based on Hampel filtering |
| title_full | Synchronization for mini‐UAV‐based high‐resolution BiSAR systems: Lost direct signal estimation based on Hampel filtering |
| title_fullStr | Synchronization for mini‐UAV‐based high‐resolution BiSAR systems: Lost direct signal estimation based on Hampel filtering |
| title_full_unstemmed | Synchronization for mini‐UAV‐based high‐resolution BiSAR systems: Lost direct signal estimation based on Hampel filtering |
| title_short | Synchronization for mini‐UAV‐based high‐resolution BiSAR systems: Lost direct signal estimation based on Hampel filtering |
| title_sort | synchronization for mini uav based high resolution bisar systems lost direct signal estimation based on hampel filtering |
| url | https://doi.org/10.1049/ell2.12606 |
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