End-to-End SAR Deep Learning Imaging Method Based on Sparse Optimization
Synthetic aperture radar (SAR) imaging has developed rapidly in recent years. Although the traditional sparse optimization imaging algorithm has achieved effective results, its shortcomings are slow imaging speed, large number of parameters, and high computational complexity. To solve the above prob...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-11-01
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| Series: | Remote Sensing |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2072-4292/13/21/4429 |
| _version_ | 1797511834126778368 |
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| author | Siyuan Zhao Jiacheng Ni Jia Liang Shichao Xiong Ying Luo |
| author_facet | Siyuan Zhao Jiacheng Ni Jia Liang Shichao Xiong Ying Luo |
| author_sort | Siyuan Zhao |
| collection | DOAJ |
| description | Synthetic aperture radar (SAR) imaging has developed rapidly in recent years. Although the traditional sparse optimization imaging algorithm has achieved effective results, its shortcomings are slow imaging speed, large number of parameters, and high computational complexity. To solve the above problems, an end-to-end SAR deep learning imaging algorithm is proposed. Based on the existing SAR sparse imaging algorithm, the SAR imaging model is first rewritten to the SAR complex signal form based on the real-value model. Second, instead of arranging the two-dimensional echo data into a vector to continuously construct an observation matrix, the algorithm only derives the neural network imaging model based on the iteration soft threshold algorithm (ISTA) sparse algorithm in the two-dimensional data domain, and then reconstructs the observation scene through the superposition and expansion of the multi-layer network. Finally, through the experiment of simulation data and measured data of the three targets, it is verified that our algorithm is superior to the traditional sparse algorithm in terms of imaging quality, imaging time, and the number of parameters. |
| first_indexed | 2024-03-10T05:53:36Z |
| format | Article |
| id | doaj.art-1a6b2f2bb6484f92b69aa8cfa69e13cc |
| institution | Directory Open Access Journal |
| issn | 2072-4292 |
| language | English |
| last_indexed | 2024-03-10T05:53:36Z |
| publishDate | 2021-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Remote Sensing |
| spelling | doaj.art-1a6b2f2bb6484f92b69aa8cfa69e13cc2023-11-22T21:33:20ZengMDPI AGRemote Sensing2072-42922021-11-011321442910.3390/rs13214429End-to-End SAR Deep Learning Imaging Method Based on Sparse OptimizationSiyuan Zhao0Jiacheng Ni1Jia Liang2Shichao Xiong3Ying Luo4Institute of Information and Navigation, Air Force Engineering University, Xi’an 710077, ChinaInstitute of Information and Navigation, Air Force Engineering University, Xi’an 710077, ChinaInstitute of Information and Navigation, Air Force Engineering University, Xi’an 710077, ChinaInstitute of Information and Navigation, Air Force Engineering University, Xi’an 710077, ChinaInstitute of Information and Navigation, Air Force Engineering University, Xi’an 710077, ChinaSynthetic aperture radar (SAR) imaging has developed rapidly in recent years. Although the traditional sparse optimization imaging algorithm has achieved effective results, its shortcomings are slow imaging speed, large number of parameters, and high computational complexity. To solve the above problems, an end-to-end SAR deep learning imaging algorithm is proposed. Based on the existing SAR sparse imaging algorithm, the SAR imaging model is first rewritten to the SAR complex signal form based on the real-value model. Second, instead of arranging the two-dimensional echo data into a vector to continuously construct an observation matrix, the algorithm only derives the neural network imaging model based on the iteration soft threshold algorithm (ISTA) sparse algorithm in the two-dimensional data domain, and then reconstructs the observation scene through the superposition and expansion of the multi-layer network. Finally, through the experiment of simulation data and measured data of the three targets, it is verified that our algorithm is superior to the traditional sparse algorithm in terms of imaging quality, imaging time, and the number of parameters.https://www.mdpi.com/2072-4292/13/21/4429synthetic aperture radar (SAR)sparse imaging algorithmend-to-enddeep learningtwo-dimensional |
| spellingShingle | Siyuan Zhao Jiacheng Ni Jia Liang Shichao Xiong Ying Luo End-to-End SAR Deep Learning Imaging Method Based on Sparse Optimization Remote Sensing synthetic aperture radar (SAR) sparse imaging algorithm end-to-end deep learning two-dimensional |
| title | End-to-End SAR Deep Learning Imaging Method Based on Sparse Optimization |
| title_full | End-to-End SAR Deep Learning Imaging Method Based on Sparse Optimization |
| title_fullStr | End-to-End SAR Deep Learning Imaging Method Based on Sparse Optimization |
| title_full_unstemmed | End-to-End SAR Deep Learning Imaging Method Based on Sparse Optimization |
| title_short | End-to-End SAR Deep Learning Imaging Method Based on Sparse Optimization |
| title_sort | end to end sar deep learning imaging method based on sparse optimization |
| topic | synthetic aperture radar (SAR) sparse imaging algorithm end-to-end deep learning two-dimensional |
| url | https://www.mdpi.com/2072-4292/13/21/4429 |
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