Study of Wide Swath Synthetic Aperture Ladar Imaging Techology
Combining synthetic-aperture imaging and coherent-light detection technology, the weak signal identification capacity of Synthetic Aperture Ladar (SAL) reaches the photo level, and the image resolution exceeds the diffraction limit of the telescope to obtain high-resolution images irrespective to ra...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
China Science Publishing & Media Ltd. (CSPM)
2017-02-01
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| Series: | Leida xuebao |
| Subjects: | |
| Online Access: | http://radars.ie.ac.cn/CN/html/20170101.htm |
| _version_ | 1797428661421342720 |
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| author | Zhang Keshu Pan Jie Wang Ran Li Guangzuo Wang Ning Wu Yirong |
| author_facet | Zhang Keshu Pan Jie Wang Ran Li Guangzuo Wang Ning Wu Yirong |
| author_sort | Zhang Keshu |
| collection | DOAJ |
| description | Combining synthetic-aperture imaging and coherent-light detection technology, the weak signal identification capacity of Synthetic Aperture Ladar (SAL) reaches the photo level, and the image resolution exceeds the diffraction limit of the telescope to obtain high-resolution images irrespective to ranges. This paper introduces SAL, including the development path, technology characteristics, and the restriction of imaging swath. On the basis of this, we propose to integrate the SAL technology for extending its swath. By analyzing the scanning-operation mode and the signal model, the paper explicitly proposes that the former mode will be the developmental trend of the SAL technology. This paper also introduces the flight demonstrations of the SAL and the imaging results of remote targets, showing the potential of the SAL in long-range, high-resolution, and scanning-imaging applications. The technology and the theory of the scanning mode of SAL compensates for the defects related to the swath and operation efficiency of the current SAL. It provides scientific foundation for the SAL system applied in wide swath, high resolution earth observation, and the ISAL system applied in space-targets imaging. |
| first_indexed | 2024-03-09T09:02:06Z |
| format | Article |
| id | doaj.art-6007aabbfc424b098a905eacfa952fe5 |
| institution | Directory Open Access Journal |
| issn | 2095-283X 2095-283X |
| language | English |
| last_indexed | 2024-03-09T09:02:06Z |
| publishDate | 2017-02-01 |
| publisher | China Science Publishing & Media Ltd. (CSPM) |
| record_format | Article |
| series | Leida xuebao |
| spelling | doaj.art-6007aabbfc424b098a905eacfa952fe52023-12-02T11:21:37ZengChina Science Publishing & Media Ltd. (CSPM)Leida xuebao2095-283X2095-283X2017-02-016111010.12000/JR16152Study of Wide Swath Synthetic Aperture Ladar Imaging TechologyZhang Keshu0Pan Jie1Wang Ran2Li Guangzuo3Wang Ning4Wu Yirong5①(Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China) ②(University of Chinese Academy of Sciences, Beijing 100049, China)①(Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China) ②(University of Chinese Academy of Sciences, Beijing 100049, China)①(Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China)③(Shanghai Jiao Tong University, Shanghai 200240, China)①(Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China) ②(University of Chinese Academy of Sciences, Beijing 100049, China)①(Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China)Combining synthetic-aperture imaging and coherent-light detection technology, the weak signal identification capacity of Synthetic Aperture Ladar (SAL) reaches the photo level, and the image resolution exceeds the diffraction limit of the telescope to obtain high-resolution images irrespective to ranges. This paper introduces SAL, including the development path, technology characteristics, and the restriction of imaging swath. On the basis of this, we propose to integrate the SAL technology for extending its swath. By analyzing the scanning-operation mode and the signal model, the paper explicitly proposes that the former mode will be the developmental trend of the SAL technology. This paper also introduces the flight demonstrations of the SAL and the imaging results of remote targets, showing the potential of the SAL in long-range, high-resolution, and scanning-imaging applications. The technology and the theory of the scanning mode of SAL compensates for the defects related to the swath and operation efficiency of the current SAL. It provides scientific foundation for the SAL system applied in wide swath, high resolution earth observation, and the ISAL system applied in space-targets imaging.http://radars.ie.ac.cn/CN/html/20170101.htmSynthetic Aperture Ladar (SAL)Laser radarScanning mode |
| spellingShingle | Zhang Keshu Pan Jie Wang Ran Li Guangzuo Wang Ning Wu Yirong Study of Wide Swath Synthetic Aperture Ladar Imaging Techology Leida xuebao Synthetic Aperture Ladar (SAL) Laser radar Scanning mode |
| title | Study of Wide Swath Synthetic Aperture Ladar Imaging Techology |
| title_full | Study of Wide Swath Synthetic Aperture Ladar Imaging Techology |
| title_fullStr | Study of Wide Swath Synthetic Aperture Ladar Imaging Techology |
| title_full_unstemmed | Study of Wide Swath Synthetic Aperture Ladar Imaging Techology |
| title_short | Study of Wide Swath Synthetic Aperture Ladar Imaging Techology |
| title_sort | study of wide swath synthetic aperture ladar imaging techology |
| topic | Synthetic Aperture Ladar (SAL) Laser radar Scanning mode |
| url | http://radars.ie.ac.cn/CN/html/20170101.htm |
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