Three-dimensional Resolution Analysis for Geosynchronous Circular SAR
GEOsynchronous Circular SAR (GEOCSAR), having a high orbit, operating in a slant ellipse, and imaging in spherical surface, should be newly modeled to assess the resolution performance. In this paper, starting from modeling geometry, a function of slant range difference and orientation angle is dedu...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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China Science Publishing & Media Ltd. (CSPM)
2012-09-01
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| Series: | Leida xuebao |
| Subjects: | |
| Online Access: | http://radars.ie.ac.cn/EN/abstract/abstract37.shtml# |
| _version_ | 1797430879234031616 |
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| author | Wang Bing-nan Xiang Mao-sheng |
| author_facet | Wang Bing-nan Xiang Mao-sheng |
| author_sort | Wang Bing-nan |
| collection | DOAJ |
| description | GEOsynchronous Circular SAR (GEOCSAR), having a high orbit, operating in a slant ellipse, and imaging in spherical surface, should be newly modeled to assess the resolution performance. In this paper, starting from modeling geometry, a function of slant range difference and orientation angle is deduced. Then we can obtain the three dimensional point spread function and make a conclusion of resolution affected by both sinc function and bessel function of first kind. Lastly, resolution with the variation of location of target, bandwidth, radius of orbit, and integral time is analyzed detailedly. Finally raw signal simulations show the validity of theoretical model. |
| first_indexed | 2024-03-09T09:33:56Z |
| format | Article |
| id | doaj.art-7521a302f7fa479b9333bc54f71a5e8b |
| institution | Directory Open Access Journal |
| issn | 2095-283X 2095-283X |
| language | English |
| last_indexed | 2024-03-09T09:33:56Z |
| publishDate | 2012-09-01 |
| publisher | China Science Publishing & Media Ltd. (CSPM) |
| record_format | Article |
| series | Leida xuebao |
| spelling | doaj.art-7521a302f7fa479b9333bc54f71a5e8b2023-12-02T02:39:10ZengChina Science Publishing & Media Ltd. (CSPM)Leida xuebao2095-283X2095-283X2012-09-011331432210.3724/SP.J.1300.2012.20044Three-dimensional Resolution Analysis for Geosynchronous Circular SARWang Bing-nan0Xiang Mao-sheng1National Key Laboratory of Science and Technology on Microwave Imaging, Institute of Electronics Chinese Academy of SciencesNational Key Laboratory of Science and Technology on Microwave Imaging, Institute of Electronics Chinese Academy of SciencesGEOsynchronous Circular SAR (GEOCSAR), having a high orbit, operating in a slant ellipse, and imaging in spherical surface, should be newly modeled to assess the resolution performance. In this paper, starting from modeling geometry, a function of slant range difference and orientation angle is deduced. Then we can obtain the three dimensional point spread function and make a conclusion of resolution affected by both sinc function and bessel function of first kind. Lastly, resolution with the variation of location of target, bandwidth, radius of orbit, and integral time is analyzed detailedly. Finally raw signal simulations show the validity of theoretical model.http://radars.ie.ac.cn/EN/abstract/abstract37.shtml#Synthetic Aperture Radar (SAR)Circular SARResolutionGeosynchronous orbit |
| spellingShingle | Wang Bing-nan Xiang Mao-sheng Three-dimensional Resolution Analysis for Geosynchronous Circular SAR Leida xuebao Synthetic Aperture Radar (SAR) Circular SAR Resolution Geosynchronous orbit |
| title | Three-dimensional Resolution Analysis for Geosynchronous Circular SAR |
| title_full | Three-dimensional Resolution Analysis for Geosynchronous Circular SAR |
| title_fullStr | Three-dimensional Resolution Analysis for Geosynchronous Circular SAR |
| title_full_unstemmed | Three-dimensional Resolution Analysis for Geosynchronous Circular SAR |
| title_short | Three-dimensional Resolution Analysis for Geosynchronous Circular SAR |
| title_sort | three dimensional resolution analysis for geosynchronous circular sar |
| topic | Synthetic Aperture Radar (SAR) Circular SAR Resolution Geosynchronous orbit |
| url | http://radars.ie.ac.cn/EN/abstract/abstract37.shtml# |
| work_keys_str_mv | AT wangbingnan threedimensionalresolutionanalysisforgeosynchronouscircularsar AT xiangmaosheng threedimensionalresolutionanalysisforgeosynchronouscircularsar |