Curvilinear Flight Synthetic Aperture Radar (CF-SAR): Principles, Methods, Applications, Challenges and Trends
The research into curvilinear flight synthetic aperture radar (CF-SAR) is the inevitable result of the comprehensive practicality of SAR. The flight path of the SAR platform in real applications, which is highly nonlinear or curvy due to three-dimensional velocity and acceleration, cannot be describ...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-06-01
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| Series: | Remote Sensing |
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| Online Access: | https://www.mdpi.com/2072-4292/14/13/2983 |
| _version_ | 1797442146252357632 |
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| author | Zhanye Chen Shiyang Tang Yi Ren Ping Guo Yu Zhou Yan Huang Jun Wan Linrang Zhang |
| author_facet | Zhanye Chen Shiyang Tang Yi Ren Ping Guo Yu Zhou Yan Huang Jun Wan Linrang Zhang |
| author_sort | Zhanye Chen |
| collection | DOAJ |
| description | The research into curvilinear flight synthetic aperture radar (CF-SAR) is the inevitable result of the comprehensive practicality of SAR. The flight path of the SAR platform in real applications, which is highly nonlinear or curvy due to three-dimensional velocity and acceleration, cannot be described by the traditional uniform linear motion model. New mathematical models, signal characteristics, imaging algorithms, and system design criteria must be proposed and investigated for CF-SAR. This paper provides a comprehensive overview of CF-SAR. Firstly, the basic concept, unified model, and general signal characteristics of CF-SAR are defined, derived, and analyzed, respectively. Additionally, the advantages and drawbacks of current methodologies are reviewed. Discussions on the CF-SAR’s applications are presented from the perspective of typical platforms, new configurations, and advanced technologies, which are suitable means to fulfill the increasing user requirements. Finally, the challenges faced by CF-SAR are summarized, and some future trends for the study of CF-SAR are explored. Hopefully, this paper will serve as a reference for SAR researchers/engineers and stimulate the future development and actual application of CF-SAR. |
| first_indexed | 2024-03-09T12:37:36Z |
| format | Article |
| id | doaj.art-1f360978a490478fa74470007a7b55eb |
| institution | Directory Open Access Journal |
| issn | 2072-4292 |
| language | English |
| last_indexed | 2024-03-09T12:37:36Z |
| publishDate | 2022-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Remote Sensing |
| spelling | doaj.art-1f360978a490478fa74470007a7b55eb2023-11-30T22:22:25ZengMDPI AGRemote Sensing2072-42922022-06-011413298310.3390/rs14132983Curvilinear Flight Synthetic Aperture Radar (CF-SAR): Principles, Methods, Applications, Challenges and TrendsZhanye Chen0Shiyang Tang1Yi Ren2Ping Guo3Yu Zhou4Yan Huang5Jun Wan6Linrang Zhang7Chongqing Key Laboratory of Space Information Network and Intelligent Information Fusion, School of Microelectronics and Communication Engineering, Chongqing University, Chongqing 400044, ChinaNational Laboratory of Radar Signal Processing, Xidian University, Xi’an 710071, ChinaNational Laboratory of Radar Signal Processing, Xidian University, Xi’an 710071, ChinaCollege of Communication and Information Engineering, Xi’an University of Science and Technology, Xi’an 710054, ChinaNational Laboratory of Radar Signal Processing, Xidian University, Xi’an 710071, ChinaState Key Lab of Millimeter Waves, School of Information Science and Engineering, Southeast University, Nanjing 210096, ChinaChongqing Key Laboratory of Space Information Network and Intelligent Information Fusion, School of Microelectronics and Communication Engineering, Chongqing University, Chongqing 400044, ChinaNational Laboratory of Radar Signal Processing, Xidian University, Xi’an 710071, ChinaThe research into curvilinear flight synthetic aperture radar (CF-SAR) is the inevitable result of the comprehensive practicality of SAR. The flight path of the SAR platform in real applications, which is highly nonlinear or curvy due to three-dimensional velocity and acceleration, cannot be described by the traditional uniform linear motion model. New mathematical models, signal characteristics, imaging algorithms, and system design criteria must be proposed and investigated for CF-SAR. This paper provides a comprehensive overview of CF-SAR. Firstly, the basic concept, unified model, and general signal characteristics of CF-SAR are defined, derived, and analyzed, respectively. Additionally, the advantages and drawbacks of current methodologies are reviewed. Discussions on the CF-SAR’s applications are presented from the perspective of typical platforms, new configurations, and advanced technologies, which are suitable means to fulfill the increasing user requirements. Finally, the challenges faced by CF-SAR are summarized, and some future trends for the study of CF-SAR are explored. Hopefully, this paper will serve as a reference for SAR researchers/engineers and stimulate the future development and actual application of CF-SAR.https://www.mdpi.com/2072-4292/14/13/2983curvilinear flight synthetic aperture radarradar imagingrange modelbi-/multi-statichigh-resolution wide-swathground moving target indication |
| spellingShingle | Zhanye Chen Shiyang Tang Yi Ren Ping Guo Yu Zhou Yan Huang Jun Wan Linrang Zhang Curvilinear Flight Synthetic Aperture Radar (CF-SAR): Principles, Methods, Applications, Challenges and Trends Remote Sensing curvilinear flight synthetic aperture radar radar imaging range model bi-/multi-static high-resolution wide-swath ground moving target indication |
| title | Curvilinear Flight Synthetic Aperture Radar (CF-SAR): Principles, Methods, Applications, Challenges and Trends |
| title_full | Curvilinear Flight Synthetic Aperture Radar (CF-SAR): Principles, Methods, Applications, Challenges and Trends |
| title_fullStr | Curvilinear Flight Synthetic Aperture Radar (CF-SAR): Principles, Methods, Applications, Challenges and Trends |
| title_full_unstemmed | Curvilinear Flight Synthetic Aperture Radar (CF-SAR): Principles, Methods, Applications, Challenges and Trends |
| title_short | Curvilinear Flight Synthetic Aperture Radar (CF-SAR): Principles, Methods, Applications, Challenges and Trends |
| title_sort | curvilinear flight synthetic aperture radar cf sar principles methods applications challenges and trends |
| topic | curvilinear flight synthetic aperture radar radar imaging range model bi-/multi-static high-resolution wide-swath ground moving target indication |
| url | https://www.mdpi.com/2072-4292/14/13/2983 |
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