A High-Resolution, Wide-Swath SAR Imaging System Based on Tandem SAR Satellites
For the spaceborne synthetic aperture radar (SAR), it is difficult to obtain high resolution and wide width at the same time. This paper proposes a novel imaging system based on tandem SAR satellites, where one obtains coarse resolution and wide swath by the scanning mode, and the other obtains the...
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| Published in | Sensors (Basel, Switzerland) Vol. 22; no. 20; p. 7747 |
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| Main Authors | , |
| Format | Journal Article |
| Language | English |
| Published |
Basel
MDPI AG
01.10.2022
MDPI |
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| Online Access | Get full text |
| ISSN | 1424-8220 1424-8220 |
| DOI | 10.3390/s22207747 |
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| Abstract | For the spaceborne synthetic aperture radar (SAR), it is difficult to obtain high resolution and wide width at the same time. This paper proposes a novel imaging system based on tandem SAR satellites, where one obtains coarse resolution and wide swath by the scanning mode, and the other obtains the undersampled echo from the same swath. The high resolution is achieved by associating the tandem SARs’ echo and using the minimum-energy-based algorithm. Finally, a high-resolution wide-swath SAR system is designed, and its imaging performance is verified by simulated data and real airborne SAR data. |
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| AbstractList | For the spaceborne synthetic aperture radar (SAR), it is difficult to obtain high resolution and wide width at the same time. This paper proposes a novel imaging system based on tandem SAR satellites, where one obtains coarse resolution and wide swath by the scanning mode, and the other obtains the undersampled echo from the same swath. The high resolution is achieved by associating the tandem SARs’ echo and using the minimum-energy-based algorithm. Finally, a high-resolution wide-swath SAR system is designed, and its imaging performance is verified by simulated data and real airborne SAR data. For the spaceborne synthetic aperture radar (SAR), it is difficult to obtain high resolution and wide width at the same time. This paper proposes a novel imaging system based on tandem SAR satellites, where one obtains coarse resolution and wide swath by the scanning mode, and the other obtains the undersampled echo from the same swath. The high resolution is achieved by associating the tandem SARs' echo and using the minimum-energy-based algorithm. Finally, a high-resolution wide-swath SAR system is designed, and its imaging performance is verified by simulated data and real airborne SAR data.For the spaceborne synthetic aperture radar (SAR), it is difficult to obtain high resolution and wide width at the same time. This paper proposes a novel imaging system based on tandem SAR satellites, where one obtains coarse resolution and wide swath by the scanning mode, and the other obtains the undersampled echo from the same swath. The high resolution is achieved by associating the tandem SARs' echo and using the minimum-energy-based algorithm. Finally, a high-resolution wide-swath SAR system is designed, and its imaging performance is verified by simulated data and real airborne SAR data. |
| Audience | Academic |
| Author | Li, Chunsheng Sun, Liwei |
| AuthorAffiliation | School of Electronics and Information Engineering, Beihang University, Beijing 100083, China |
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| Cites_doi | 10.1109/29.32281 10.1109/36.823926 10.1109/TGRS.2019.2959217 10.1109/JSTARS.2015.2400439 10.1109/83.242366 10.1109/TGRS.2010.2041356 10.1109/TMI.1983.4307610 10.1109/TCS.1975.1084118 10.1109/TGRS.2016.2602939 10.1109/TGRS.2013.2282863 10.1109/TGRS.2007.905974 10.1109/TGRS.2017.2669205 10.1109/TGRS.2021.3051727 10.1109/SAM48682.2020.9104249 10.1109/TGRS.2012.2183606 10.1109/LGRS.2014.2353674 10.1109/SARS.2018.8551979 10.1109/JSTARS.2016.2569561 10.1109/TGRS.2015.2476496 10.1049/ip-rsn:20045111 |
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| SubjectTerms | Algorithms Antennas Artificial satellites in remote sensing Bandwidths Equipment and supplies Health aspects high-resolution wide-swath Image processing Imaging systems minimum-energy criterion Receivers & amplifiers Satellites Sparsity Synthetic aperture radar synthetic aperture radar (SAR) Vegetation mapping |
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| Title | A High-Resolution, Wide-Swath SAR Imaging System Based on Tandem SAR Satellites |
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