Study on Ship Kelvin Wake Detection in Numerically Simulated SAR Images
To improve ship safety and increase ship concealment, we introduce a nonconvex regularization with a Cauchy-based penalty for discussing the influence of ship parameters and speckle noise in numerically simulated SAR images. First, the Kelvin wake geometry was modeled based on the classic theory of...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-02-01
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| Series: | Remote Sensing |
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| Online Access: | https://www.mdpi.com/2072-4292/15/4/1089 |
| _version_ | 1797618389037875200 |
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| author | Jingjing Wang Lixin Guo Yiwen Wei Shuirong Chai |
| author_facet | Jingjing Wang Lixin Guo Yiwen Wei Shuirong Chai |
| author_sort | Jingjing Wang |
| collection | DOAJ |
| description | To improve ship safety and increase ship concealment, we introduce a nonconvex regularization with a Cauchy-based penalty for discussing the influence of ship parameters and speckle noise in numerically simulated SAR images. First, the Kelvin wake geometry was modeled based on the classic theory of ship wave generation. Second, the scattering echo of the Kelvin wake was calculated using the two-scale method (TSM). Then, using the range-Doppler algorithm (RDA), the scattering echo data obtained by the TSM were processed to obtain the Kelvin wake in SAR images. Finally, the wake was reconstructed in the Radon domain using the Cauchy proximal splitting based on the forward–backward algorithm. The simulation results showed that Kelvin wakes were more easily detected in HH polarization with a large pitch angle and X-band, based on which the influence of ship parameters and speckle noise on the detection of ship wake in numerically simulated SAR images was discussed at different wind speeds. The research conclusions are of value to the development of ship wake stealth technology and the improvement of ship safety. |
| first_indexed | 2024-03-11T08:12:18Z |
| format | Article |
| id | doaj.art-e2338f1599dd48e4ae8e2a4cf31fc31c |
| institution | Directory Open Access Journal |
| issn | 2072-4292 |
| language | English |
| last_indexed | 2024-03-11T08:12:18Z |
| publishDate | 2023-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Remote Sensing |
| spelling | doaj.art-e2338f1599dd48e4ae8e2a4cf31fc31c2023-11-16T23:03:32ZengMDPI AGRemote Sensing2072-42922023-02-01154108910.3390/rs15041089Study on Ship Kelvin Wake Detection in Numerically Simulated SAR ImagesJingjing Wang0Lixin Guo1Yiwen Wei2Shuirong Chai3The School of Physics, Xidian University, Xi’an 710071, ChinaThe School of Physics, Xidian University, Xi’an 710071, ChinaThe School of Physics, Xidian University, Xi’an 710071, ChinaThe School of Physics, Xidian University, Xi’an 710071, ChinaTo improve ship safety and increase ship concealment, we introduce a nonconvex regularization with a Cauchy-based penalty for discussing the influence of ship parameters and speckle noise in numerically simulated SAR images. First, the Kelvin wake geometry was modeled based on the classic theory of ship wave generation. Second, the scattering echo of the Kelvin wake was calculated using the two-scale method (TSM). Then, using the range-Doppler algorithm (RDA), the scattering echo data obtained by the TSM were processed to obtain the Kelvin wake in SAR images. Finally, the wake was reconstructed in the Radon domain using the Cauchy proximal splitting based on the forward–backward algorithm. The simulation results showed that Kelvin wakes were more easily detected in HH polarization with a large pitch angle and X-band, based on which the influence of ship parameters and speckle noise on the detection of ship wake in numerically simulated SAR images was discussed at different wind speeds. The research conclusions are of value to the development of ship wake stealth technology and the improvement of ship safety.https://www.mdpi.com/2072-4292/15/4/1089two-scale method (TSM)SARship wake detectionship wake stealth |
| spellingShingle | Jingjing Wang Lixin Guo Yiwen Wei Shuirong Chai Study on Ship Kelvin Wake Detection in Numerically Simulated SAR Images Remote Sensing two-scale method (TSM) SAR ship wake detection ship wake stealth |
| title | Study on Ship Kelvin Wake Detection in Numerically Simulated SAR Images |
| title_full | Study on Ship Kelvin Wake Detection in Numerically Simulated SAR Images |
| title_fullStr | Study on Ship Kelvin Wake Detection in Numerically Simulated SAR Images |
| title_full_unstemmed | Study on Ship Kelvin Wake Detection in Numerically Simulated SAR Images |
| title_short | Study on Ship Kelvin Wake Detection in Numerically Simulated SAR Images |
| title_sort | study on ship kelvin wake detection in numerically simulated sar images |
| topic | two-scale method (TSM) SAR ship wake detection ship wake stealth |
| url | https://www.mdpi.com/2072-4292/15/4/1089 |
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