Near-field imaging for conducting objects
A spherical back-projection algorithm is proposed to reconstruct near-field microwave images of conducting objects. In this imaging scheme, the object is mounted on a rotating pedestal and its backscattered near field is measured at discrete-frequency steps. Implementation of the method consists of...
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| Veröffentlicht in: | IEEE transactions on antennas and propagation 1991-05, Vol.39 (5), p.600-605 |
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| container_title | IEEE transactions on antennas and propagation |
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| creator | LI, H S U E H-J Y H LIN, F E N G-L I |
| description | A spherical back-projection algorithm is proposed to reconstruct near-field microwave images of conducting objects. In this imaging scheme, the object is mounted on a rotating pedestal and its backscattered near field is measured at discrete-frequency steps. Implementation of the method consists of first estimating the spherical projection (or range profile) at each aspect by inverse Fourier transforming the range-corrected scattered near field, and then coherently spherically back-projecting the range profiles into the image plane. The images are interpreted and predicted based on the procedure of the spherical back-projection method, and numerical and experimental results are presented to verify the effectiveness of the proposed algorithm.< > |
| doi_str_mv | 10.1109/8.81486 |
| format | Article |
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In this imaging scheme, the object is mounted on a rotating pedestal and its backscattered near field is measured at discrete-frequency steps. Implementation of the method consists of first estimating the spherical projection (or range profile) at each aspect by inverse Fourier transforming the range-corrected scattered near field, and then coherently spherically back-projecting the range profiles into the image plane. The images are interpreted and predicted based on the procedure of the spherical back-projection method, and numerical and experimental results are presented to verify the effectiveness of the proposed algorithm.< ></description><identifier>ISSN: 0018-926X</identifier><identifier>EISSN: 1558-2221</identifier><identifier>DOI: 10.1109/8.81486</identifier><identifier>CODEN: IETPAK</identifier><language>eng</language><publisher>New York, NY: IEEE</publisher><subject>Applied sciences ; Exact sciences and technology ; Fourier transforms ; Frequency measurement ; Image processing ; Image reconstruction ; Information, signal and communications theory ; Microwave imaging ; Receiving antennas ; Reconstruction algorithms ; Rotation measurement ; Scattering ; Signal processing ; Surface reconstruction ; Telecommunications and information theory ; Tomography</subject><ispartof>IEEE transactions on antennas and propagation, 1991-05, Vol.39 (5), p.600-605</ispartof><rights>1991 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c333t-b1e44e8c7acb4bdcaee3f00e3cf8205ad51d30701af0455e2d99f1d346cde7823</citedby><cites>FETCH-LOGICAL-c333t-b1e44e8c7acb4bdcaee3f00e3cf8205ad51d30701af0455e2d99f1d346cde7823</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/81486$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>314,780,784,796,27924,27925,54758</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/81486$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=19774740$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>LI, H S U E H-J Y H</creatorcontrib><creatorcontrib>LIN, F E N G-L I</creatorcontrib><title>Near-field imaging for conducting objects</title><title>IEEE transactions on antennas and propagation</title><addtitle>TAP</addtitle><description>A spherical back-projection algorithm is proposed to reconstruct near-field microwave images of conducting objects. In this imaging scheme, the object is mounted on a rotating pedestal and its backscattered near field is measured at discrete-frequency steps. Implementation of the method consists of first estimating the spherical projection (or range profile) at each aspect by inverse Fourier transforming the range-corrected scattered near field, and then coherently spherically back-projecting the range profiles into the image plane. The images are interpreted and predicted based on the procedure of the spherical back-projection method, and numerical and experimental results are presented to verify the effectiveness of the proposed algorithm.< ></description><subject>Applied sciences</subject><subject>Exact sciences and technology</subject><subject>Fourier transforms</subject><subject>Frequency measurement</subject><subject>Image processing</subject><subject>Image reconstruction</subject><subject>Information, signal and communications theory</subject><subject>Microwave imaging</subject><subject>Receiving antennas</subject><subject>Reconstruction algorithms</subject><subject>Rotation measurement</subject><subject>Scattering</subject><subject>Signal processing</subject><subject>Surface reconstruction</subject><subject>Telecommunications and information theory</subject><subject>Tomography</subject><issn>0018-926X</issn><issn>1558-2221</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1991</creationdate><recordtype>article</recordtype><recordid>eNqFkE1LAzEQhoMoWKt49taLioet-WySoxS_oOhFwVvITiZly3a3JtuD_96tW_ToaXhnHh6Yl5BzRqeMUXtrpoZJMzsgI6aUKTjn7JCMKGWmsHz2cUxOcl71URopR-TmBX0qYoV1mFRrv6ya5SS2aQJtE7bQ7WJbrhC6fEqOoq8znu3nmLw_3L_Nn4rF6-Pz_G5RgBCiK0qGUqIB7aGUZQCPKCKlKCAaTpUPigVBNWU-UqkU8mBt7FdyBgG14WJMrgbvJrWfW8ydW1cZsK59g-02O26kMpap_0ElhKZW9-D1AEJqc04Y3Sb1v6Yvx6jbdeaM--msJy_3Sp_B1zH5Bqr8h1utpZa05y4GrkLE3_Pg-AZZL3I5</recordid><startdate>19910501</startdate><enddate>19910501</enddate><creator>LI, H S U E H-J Y H</creator><creator>LIN, F E N G-L I</creator><general>IEEE</general><general>Institute of Electrical and Electronics Engineers</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope><scope>7SP</scope></search><sort><creationdate>19910501</creationdate><title>Near-field imaging for conducting objects</title><author>LI, H S U E H-J Y H ; LIN, F E N G-L I</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c333t-b1e44e8c7acb4bdcaee3f00e3cf8205ad51d30701af0455e2d99f1d346cde7823</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1991</creationdate><topic>Applied sciences</topic><topic>Exact sciences and technology</topic><topic>Fourier transforms</topic><topic>Frequency measurement</topic><topic>Image processing</topic><topic>Image reconstruction</topic><topic>Information, signal and communications theory</topic><topic>Microwave imaging</topic><topic>Receiving antennas</topic><topic>Reconstruction algorithms</topic><topic>Rotation measurement</topic><topic>Scattering</topic><topic>Signal processing</topic><topic>Surface reconstruction</topic><topic>Telecommunications and information theory</topic><topic>Tomography</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>LI, H S U E H-J Y H</creatorcontrib><creatorcontrib>LIN, F E N G-L I</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Electronics & Communications Abstracts</collection><jtitle>IEEE transactions on antennas and propagation</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>LI, H S U E H-J Y H</au><au>LIN, F E N G-L I</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Near-field imaging for conducting objects</atitle><jtitle>IEEE transactions on antennas and propagation</jtitle><stitle>TAP</stitle><date>1991-05-01</date><risdate>1991</risdate><volume>39</volume><issue>5</issue><spage>600</spage><epage>605</epage><pages>600-605</pages><issn>0018-926X</issn><eissn>1558-2221</eissn><coden>IETPAK</coden><abstract>A spherical back-projection algorithm is proposed to reconstruct near-field microwave images of conducting objects. In this imaging scheme, the object is mounted on a rotating pedestal and its backscattered near field is measured at discrete-frequency steps. Implementation of the method consists of first estimating the spherical projection (or range profile) at each aspect by inverse Fourier transforming the range-corrected scattered near field, and then coherently spherically back-projecting the range profiles into the image plane. The images are interpreted and predicted based on the procedure of the spherical back-projection method, and numerical and experimental results are presented to verify the effectiveness of the proposed algorithm.< ></abstract><cop>New York, NY</cop><pub>IEEE</pub><doi>10.1109/8.81486</doi><tpages>6</tpages></addata></record> |
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| ispartof | IEEE transactions on antennas and propagation, 1991-05, Vol.39 (5), p.600-605 |
| issn | 0018-926X 1558-2221 |
| language | eng |
| recordid | cdi_pascalfrancis_primary_19774740 |
| source | IEEE Electronic Library (IEL) |
| subjects | Applied sciences Exact sciences and technology Fourier transforms Frequency measurement Image processing Image reconstruction Information, signal and communications theory Microwave imaging Receiving antennas Reconstruction algorithms Rotation measurement Scattering Signal processing Surface reconstruction Telecommunications and information theory Tomography |
| title | Near-field imaging for conducting objects |
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