A Method of Marine Moving Targets Detection in Multi-Channel ScanSAR System
Azimuth multi-channel Synthetic Aperture Radar (SAR) system operated in burst mode makes high-resolution ultrawide-swath (HRUS) imaging become a reality. This kind of imaging mode has excellent application value for the maritime scenarios requiring wide-area monitoring. This paper suggests a moving...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-11-01
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| Series: | Remote Sensing |
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| Online Access: | https://www.mdpi.com/2072-4292/12/22/3792 |
| _version_ | 1797547518890868736 |
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| author | Junying Yang Xiaolan Qiu Mingyang Shang Lihua Zhong Chibiao Ding |
| author_facet | Junying Yang Xiaolan Qiu Mingyang Shang Lihua Zhong Chibiao Ding |
| author_sort | Junying Yang |
| collection | DOAJ |
| description | Azimuth multi-channel Synthetic Aperture Radar (SAR) system operated in burst mode makes high-resolution ultrawide-swath (HRUS) imaging become a reality. This kind of imaging mode has excellent application value for the maritime scenarios requiring wide-area monitoring. This paper suggests a moving target detection (MTD) method of marine scenes based on sparse recovery, which integrates detection, velocity estimation, and relocation. Firstly, the typical phenomenon of scene folding in the coarse-focused domain is introduced in detail. Given that the spatial distribution of moving vessels is highly sparse, the idea of sparse recovery is utilized to acquire the azimuth time characterizing the position of the moving target reasonably. Subsequently, the radial velocity and position information about the targets are obtained simultaneously. What makes the proposed method effective are two characteristics of the moving targets in ocean scenes, high signal-to-clutter ratio (SCR) and sparsity of the spatial distribution. Then, estimation performances under different SCR are analyzed by Monte Carlo experiments. And the actual SCR of the vessels in the ocean scene obtained by GaoFen-3 dual-receive channel mode is invoked as a reference value to verify the effectiveness. Besides, some simulation experiments demonstrate the capability to indicate marine moving targets. |
| first_indexed | 2024-03-10T14:45:12Z |
| format | Article |
| id | doaj.art-cdb6e3fec7f141daa8d09ddb50ab77cb |
| institution | Directory Open Access Journal |
| issn | 2072-4292 |
| language | English |
| last_indexed | 2024-03-10T14:45:12Z |
| publishDate | 2020-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Remote Sensing |
| spelling | doaj.art-cdb6e3fec7f141daa8d09ddb50ab77cb2023-11-20T21:27:55ZengMDPI AGRemote Sensing2072-42922020-11-011222379210.3390/rs12223792A Method of Marine Moving Targets Detection in Multi-Channel ScanSAR SystemJunying Yang0Xiaolan Qiu1Mingyang Shang2Lihua Zhong3Chibiao Ding4Aerospace Information Research Institute, Chinese Academic of Sciences, Beijing 100094, ChinaAerospace Information Research Institute, Chinese Academic of Sciences, Beijing 100094, ChinaAerospace Information Research Institute, Chinese Academic of Sciences, Beijing 100094, ChinaAerospace Information Research Institute, Chinese Academic of Sciences, Beijing 100094, ChinaAerospace Information Research Institute, Chinese Academic of Sciences, Beijing 100094, ChinaAzimuth multi-channel Synthetic Aperture Radar (SAR) system operated in burst mode makes high-resolution ultrawide-swath (HRUS) imaging become a reality. This kind of imaging mode has excellent application value for the maritime scenarios requiring wide-area monitoring. This paper suggests a moving target detection (MTD) method of marine scenes based on sparse recovery, which integrates detection, velocity estimation, and relocation. Firstly, the typical phenomenon of scene folding in the coarse-focused domain is introduced in detail. Given that the spatial distribution of moving vessels is highly sparse, the idea of sparse recovery is utilized to acquire the azimuth time characterizing the position of the moving target reasonably. Subsequently, the radial velocity and position information about the targets are obtained simultaneously. What makes the proposed method effective are two characteristics of the moving targets in ocean scenes, high signal-to-clutter ratio (SCR) and sparsity of the spatial distribution. Then, estimation performances under different SCR are analyzed by Monte Carlo experiments. And the actual SCR of the vessels in the ocean scene obtained by GaoFen-3 dual-receive channel mode is invoked as a reference value to verify the effectiveness. Besides, some simulation experiments demonstrate the capability to indicate marine moving targets.https://www.mdpi.com/2072-4292/12/22/3792high-resolution and ultrawide-swathmulti-channel ScanSARmarine moving targets detectiontarget relocationvelocity estimation |
| spellingShingle | Junying Yang Xiaolan Qiu Mingyang Shang Lihua Zhong Chibiao Ding A Method of Marine Moving Targets Detection in Multi-Channel ScanSAR System Remote Sensing high-resolution and ultrawide-swath multi-channel ScanSAR marine moving targets detection target relocation velocity estimation |
| title | A Method of Marine Moving Targets Detection in Multi-Channel ScanSAR System |
| title_full | A Method of Marine Moving Targets Detection in Multi-Channel ScanSAR System |
| title_fullStr | A Method of Marine Moving Targets Detection in Multi-Channel ScanSAR System |
| title_full_unstemmed | A Method of Marine Moving Targets Detection in Multi-Channel ScanSAR System |
| title_short | A Method of Marine Moving Targets Detection in Multi-Channel ScanSAR System |
| title_sort | method of marine moving targets detection in multi channel scansar system |
| topic | high-resolution and ultrawide-swath multi-channel ScanSAR marine moving targets detection target relocation velocity estimation |
| url | https://www.mdpi.com/2072-4292/12/22/3792 |
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