A Robust Method for Block Adjustment of UAV SAR Images
To reduce the number of ground control points required for block adjustment of unmanned aerial vehicle (UAV) synthetic aperture radar (SAR) images, a robust block adjustment method is pro-posed. The proposed method aims to solve the problem of unstable adjustment solutions caused by the jittering of...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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IEEE
2023-01-01
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| Series: | IEEE Access |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/10119151/ |
| _version_ | 1797828273655250944 |
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| author | Yunhao Chang Qing Xu Xin Xiong Guowang Jin Huitai Hou Ruibing Cui |
| author_facet | Yunhao Chang Qing Xu Xin Xiong Guowang Jin Huitai Hou Ruibing Cui |
| author_sort | Yunhao Chang |
| collection | DOAJ |
| description | To reduce the number of ground control points required for block adjustment of unmanned aerial vehicle (UAV) synthetic aperture radar (SAR) images, a robust block adjustment method is pro-posed. The proposed method aims to solve the problem of unstable adjustment solutions caused by the jittering of UAV SAR platforms. This method is based on the range Doppler model. By analyzing the correlation between the antenna phase center, velocity, and Doppler centroid of the seven orientation parameters, this method performs a block adjustment of UAV SAR images with three orientation parameters: the antenna phase center initial imaging moment, Doppler centroid, and proximity delay. UAV SAR images obtained from an area of <inline-formula> <tex-math notation="LaTeX">$2\times $ </tex-math></inline-formula> 3 km in Dengfeng were used to conduct adjustment experiments. The results obtained using different orientation parameter set-tings verify the robustness and effectiveness of the proposed method. The adjustment results under various control-point layout plans indicate that a uniform layout plan can achieve an adjustment accuracy better than 1 m with a small number of control points. |
| first_indexed | 2024-04-09T13:01:34Z |
| format | Article |
| id | doaj.art-5890f5a015bb4bd786f15dc72f351c0f |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-04-09T13:01:34Z |
| publishDate | 2023-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-5890f5a015bb4bd786f15dc72f351c0f2023-05-12T23:00:22ZengIEEEIEEE Access2169-35362023-01-0111439754398410.1109/ACCESS.2023.327329610119151A Robust Method for Block Adjustment of UAV SAR ImagesYunhao Chang0https://orcid.org/0000-0003-4008-4790Qing Xu1https://orcid.org/0000-0003-2505-7188Xin Xiong2https://orcid.org/0000-0003-4511-4207Guowang Jin3https://orcid.org/0000-0002-6626-8101Huitai Hou4https://orcid.org/0000-0002-2651-2704Ruibing Cui5Institute of Geospatial Information, Information Engineering University, Zhengzhou, Henan, ChinaInstitute of Geospatial Information, Information Engineering University, Zhengzhou, Henan, ChinaInstitute of Geospatial Information, Information Engineering University, Zhengzhou, Henan, ChinaInstitute of Geospatial Information, Information Engineering University, Zhengzhou, Henan, ChinaInstitute of Geospatial Information, Information Engineering University, Zhengzhou, Henan, ChinaInstitute of Geospatial Information, Information Engineering University, Zhengzhou, Henan, ChinaTo reduce the number of ground control points required for block adjustment of unmanned aerial vehicle (UAV) synthetic aperture radar (SAR) images, a robust block adjustment method is pro-posed. The proposed method aims to solve the problem of unstable adjustment solutions caused by the jittering of UAV SAR platforms. This method is based on the range Doppler model. By analyzing the correlation between the antenna phase center, velocity, and Doppler centroid of the seven orientation parameters, this method performs a block adjustment of UAV SAR images with three orientation parameters: the antenna phase center initial imaging moment, Doppler centroid, and proximity delay. UAV SAR images obtained from an area of <inline-formula> <tex-math notation="LaTeX">$2\times $ </tex-math></inline-formula> 3 km in Dengfeng were used to conduct adjustment experiments. The results obtained using different orientation parameter set-tings verify the robustness and effectiveness of the proposed method. The adjustment results under various control-point layout plans indicate that a uniform layout plan can achieve an adjustment accuracy better than 1 m with a small number of control points.https://ieeexplore.ieee.org/document/10119151/Unmanned aerial vehicle (UAV)SAR imagesrange Doppler modelthree-parameterblock adjustment |
| spellingShingle | Yunhao Chang Qing Xu Xin Xiong Guowang Jin Huitai Hou Ruibing Cui A Robust Method for Block Adjustment of UAV SAR Images IEEE Access Unmanned aerial vehicle (UAV) SAR images range Doppler model three-parameter block adjustment |
| title | A Robust Method for Block Adjustment of UAV SAR Images |
| title_full | A Robust Method for Block Adjustment of UAV SAR Images |
| title_fullStr | A Robust Method for Block Adjustment of UAV SAR Images |
| title_full_unstemmed | A Robust Method for Block Adjustment of UAV SAR Images |
| title_short | A Robust Method for Block Adjustment of UAV SAR Images |
| title_sort | robust method for block adjustment of uav sar images |
| topic | Unmanned aerial vehicle (UAV) SAR images range Doppler model three-parameter block adjustment |
| url | https://ieeexplore.ieee.org/document/10119151/ |
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