Dual-speed SAR imaging of moving targets
In conventional synthetic aperture radar (SAR) systems, the image of a moving target is usually mislocated. This is because the Doppler shift of the moving target is determined not only by its geometric location but also by its velocity. After range compression and auto-focusing, the Doppler frequen...
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| Veröffentlicht in: | IEEE transactions on aerospace and electronic systems 2006-01, Vol.42 (1), p.368-379 |
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| creator | Genyuan Wang Xia, Xiang-gen Chan, V.C. |
| description | In conventional synthetic aperture radar (SAR) systems, the image of a moving target is usually mislocated. This is because the Doppler shift of the moving target is determined not only by its geometric location but also by its velocity. After range compression and auto-focusing, the Doppler frequency of the moving target is still time varying and the Doppler centroid is shifted. As a result, the SAR image of a moving target is smeared and the image location of the target may not reflect its true geometric location. In this paper, a dual-speed SAR imaging approach, i.e., the radar platform flies with two different speeds in the radar observation time duration, is proposed to resolve the above two problems, especially mislocation of a moving target. |
| doi_str_mv | 10.1109/TAES.2006.1603430 |
| format | Article |
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In this paper, a dual-speed SAR imaging approach, i.e., the radar platform flies with two different speeds in the radar observation time duration, is proposed to resolve the above two problems, especially mislocation of a moving target.</description><identifier>ISSN: 0018-9251</identifier><identifier>EISSN: 1557-9603</identifier><identifier>DOI: 10.1109/TAES.2006.1603430</identifier><identifier>CODEN: IEARAX</identifier><language>eng</language><publisher>New York: IEEE</publisher><subject>Air traffic control ; Amplitude estimation ; Azimuth ; Doppler ; Doppler effect ; Doppler radar ; Doppler shift ; Frequency ; Moving targets ; Parameter estimation ; Phase estimation ; Position (location) ; Radar ; Radar imaging ; Radar polarimetry ; Synthetic aperture radar</subject><ispartof>IEEE transactions on aerospace and electronic systems, 2006-01, Vol.42 (1), p.368-379</ispartof><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. 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In this paper, a dual-speed SAR imaging approach, i.e., the radar platform flies with two different speeds in the radar observation time duration, is proposed to resolve the above two problems, especially mislocation of a moving target.</description><subject>Air traffic control</subject><subject>Amplitude estimation</subject><subject>Azimuth</subject><subject>Doppler</subject><subject>Doppler effect</subject><subject>Doppler radar</subject><subject>Doppler shift</subject><subject>Frequency</subject><subject>Moving targets</subject><subject>Parameter estimation</subject><subject>Phase estimation</subject><subject>Position (location)</subject><subject>Radar</subject><subject>Radar imaging</subject><subject>Radar polarimetry</subject><subject>Synthetic aperture radar</subject><issn>0018-9251</issn><issn>1557-9603</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2006</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNpdkE1Lw0AQhhdRMFZ_gHgJXvSSOPuZ3WNp6wcUBFvPy3azCSlpU3cTwX_vhhYETzMv87zDzIvQLYYcY1BP6-lilRMAkWMBlFE4QwnmvMhUlOcoAcAyU4TjS3QVwjZKJhlN0ON8MG0WDs6V6Wr6kTY7Uzf7Ou2qdNd9j11vfO36cI0uKtMGd3OqE_T5vFjPXrPl-8vbbLrMLBVFn21EwXlJLeHVBtRGlMAYKY1yBWGGUaq4klXJCSsqSRQxxForOUgiLVgiGJ2gh-Peg---Bhd6vWuCdW1r9q4bgpZKEMwlLiJ5_4_cdoPfx-O0FEIoygBHCB8h67sQvKv0wccf_Y_GoMfk9JicHpPTp-Si5-7oaZxzf_xp-gt63WZo</recordid><startdate>200601</startdate><enddate>200601</enddate><creator>Genyuan Wang</creator><creator>Xia, Xiang-gen</creator><creator>Chan, V.C.</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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| ispartof | IEEE transactions on aerospace and electronic systems, 2006-01, Vol.42 (1), p.368-379 |
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| source | IEEE Electronic Library (IEL) |
| subjects | Air traffic control Amplitude estimation Azimuth Doppler Doppler effect Doppler radar Doppler shift Frequency Moving targets Parameter estimation Phase estimation Position (location) Radar Radar imaging Radar polarimetry Synthetic aperture radar |
| title | Dual-speed SAR imaging of moving targets |
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