Focusing Multistatic GEO SAR With Two Stationary Receivers Based on Spectrum Gap Alignment and Recovery
Multistatic synthetic aperture radar (SAR) composed of a geosynchronous SAR illuminator and two stationary receivers has the ability to continuously monitor areas of interest. The spatially variant azimuth wavenumber spectrum gap caused by the limited synthetic aperture time may result in a high sid...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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IEEE
2024-01-01
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| Series: | IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/10356609/ |
| _version_ | 1797372229774737408 |
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| author | Yukun Guo Ze Yu Jingwen Li Chunsheng Li |
| author_facet | Yukun Guo Ze Yu Jingwen Li Chunsheng Li |
| author_sort | Yukun Guo |
| collection | DOAJ |
| description | Multistatic synthetic aperture radar (SAR) composed of a geosynchronous SAR illuminator and two stationary receivers has the ability to continuously monitor areas of interest. The spatially variant azimuth wavenumber spectrum gap caused by the limited synthetic aperture time may result in a high sidelobe level, which leads to artifacts in the image. This article exploits the spatial invariance of the gap length and proposes a new imaging method to fill the spectrum gap via gap alignment and data recovery. The spectrum gaps of all the targets are aligned based on spectrum shifting, and the full spectrum is recovered using spectrum estimation. Simulation results of point targets and extended targets verify the superiority of the proposed method compared to existing algorithms. |
| first_indexed | 2024-03-08T18:31:49Z |
| format | Article |
| id | doaj.art-84d950f0d34142b0b266270c090e3d5b |
| institution | Directory Open Access Journal |
| issn | 2151-1535 |
| language | English |
| last_indexed | 2024-03-08T18:31:49Z |
| publishDate | 2024-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing |
| spelling | doaj.art-84d950f0d34142b0b266270c090e3d5b2023-12-30T00:01:00ZengIEEEIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing2151-15352024-01-01171949196010.1109/JSTARS.2023.334248610356609Focusing Multistatic GEO SAR With Two Stationary Receivers Based on Spectrum Gap Alignment and RecoveryYukun Guo0https://orcid.org/0000-0002-7437-5038Ze Yu1https://orcid.org/0000-0002-0177-5057Jingwen Li2https://orcid.org/0000-0002-5472-9898Chunsheng Li3School of Electronics and Information Engineering, Beihang University, Beijing, ChinaSchool of Electronics and Information Engineering, Beihang University, Beijing, ChinaSchool of Electronics and Information Engineering, Beihang University, Beijing, ChinaSchool of Electronics and Information Engineering, Beihang University, Beijing, ChinaMultistatic synthetic aperture radar (SAR) composed of a geosynchronous SAR illuminator and two stationary receivers has the ability to continuously monitor areas of interest. The spatially variant azimuth wavenumber spectrum gap caused by the limited synthetic aperture time may result in a high sidelobe level, which leads to artifacts in the image. This article exploits the spatial invariance of the gap length and proposes a new imaging method to fill the spectrum gap via gap alignment and data recovery. The spectrum gaps of all the targets are aligned based on spectrum shifting, and the full spectrum is recovered using spectrum estimation. Simulation results of point targets and extended targets verify the superiority of the proposed method compared to existing algorithms.https://ieeexplore.ieee.org/document/10356609/Geosynchronous synthetic aperture radar (GEO SAR)multistatic SARSAR imaging |
| spellingShingle | Yukun Guo Ze Yu Jingwen Li Chunsheng Li Focusing Multistatic GEO SAR With Two Stationary Receivers Based on Spectrum Gap Alignment and Recovery IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing Geosynchronous synthetic aperture radar (GEO SAR) multistatic SAR SAR imaging |
| title | Focusing Multistatic GEO SAR With Two Stationary Receivers Based on Spectrum Gap Alignment and Recovery |
| title_full | Focusing Multistatic GEO SAR With Two Stationary Receivers Based on Spectrum Gap Alignment and Recovery |
| title_fullStr | Focusing Multistatic GEO SAR With Two Stationary Receivers Based on Spectrum Gap Alignment and Recovery |
| title_full_unstemmed | Focusing Multistatic GEO SAR With Two Stationary Receivers Based on Spectrum Gap Alignment and Recovery |
| title_short | Focusing Multistatic GEO SAR With Two Stationary Receivers Based on Spectrum Gap Alignment and Recovery |
| title_sort | focusing multistatic geo sar with two stationary receivers based on spectrum gap alignment and recovery |
| topic | Geosynchronous synthetic aperture radar (GEO SAR) multistatic SAR SAR imaging |
| url | https://ieeexplore.ieee.org/document/10356609/ |
| work_keys_str_mv | AT yukunguo focusingmultistaticgeosarwithtwostationaryreceiversbasedonspectrumgapalignmentandrecovery AT zeyu focusingmultistaticgeosarwithtwostationaryreceiversbasedonspectrumgapalignmentandrecovery AT jingwenli focusingmultistaticgeosarwithtwostationaryreceiversbasedonspectrumgapalignmentandrecovery AT chunshengli focusingmultistaticgeosarwithtwostationaryreceiversbasedonspectrumgapalignmentandrecovery |