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Entropy based phase calibration of antenna arrays for digital beamforming remote sensing radars

A minimum entropy based calibration algorithm for digitally beamformed imaging radars is presented. The algorithm is derived from work in SAR which corrects phase errors due to platform motion. The performance of the algorithm is compared to traditional techniques through both simulations and data f...

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Main Authors:	Lopez Dekker, P., Farquharson, G., Frasier, S.J.
Format:	Conference Proceeding
Language:	English
Subjects:	Antenna arrays Antennas Applied sciences Array signal processing Calibration Entropy Error correction Exact sciences and technology Phased arrays Radar antennas Radar imaging Radar remote sensing Radiocommunications Radiolocalization and radionavigation Remote sensing Telecommunications Telecommunications and information theory
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creator	Lopez Dekker, P. Farquharson, G. Frasier, S.J.
description	A minimum entropy based calibration algorithm for digitally beamformed imaging radars is presented. The algorithm is derived from work in SAR which corrects phase errors due to platform motion. The performance of the algorithm is compared to traditional techniques through both simulations and data from two imaging radars. The algorithm performs well with similar sidelobe levels for a point target. The results show that the minimum phase entropy algorithm produces a calibration vector without the need for a calibration target or for stringent scene statistics.
doi_str_mv	10.1109/NRC.2002.999759
format	conference_proceeding
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The results show that the minimum phase entropy algorithm produces a calibration vector without the need for a calibration target or for stringent scene statistics.</description><subject>Antenna arrays</subject><subject>Antennas</subject><subject>Applied sciences</subject><subject>Array signal processing</subject><subject>Calibration</subject><subject>Entropy</subject><subject>Error correction</subject><subject>Exact sciences and technology</subject><subject>Phased arrays</subject><subject>Radar antennas</subject><subject>Radar imaging</subject><subject>Radar remote sensing</subject><subject>Radiocommunications</subject><subject>Radiolocalization and radionavigation</subject><subject>Remote sensing</subject><subject>Telecommunications</subject><subject>Telecommunications and information theory</subject><isbn>9780780373570</isbn><isbn>078037357X</isbn><fulltext>true</fulltext><rsrctype>conference_proceeding</rsrctype><creationdate>2002</creationdate><recordtype>conference_proceeding</recordtype><sourceid>6IE</sourceid><recordid>eNo9kM1LAzEQxQMiKLVnwVMuHlsnm83O5iilfkBRED2XyVeNdLNLspf9712sdBj48XiPYXiM3QpYCwH64e1js64AqrXWGpW-YEuNLcwrUSqEK7Ys5QfmUYCg8Jrtt2nM_TBxQ8U7PnzP4JaO0WQaY594Hzil0adEnHKmqfDQZ-7iIY505MZTN-supgPPvutHz4tP5U-So1xu2GWgY_HLfy7Y19P2c_Oy2r0_v24ed6soZD2ugtNthR4NVpWkVsqWhDdghBQ6WAMObSCna2waC8ZbcE5bq9EIVFA3lVyw-9Pdgcr8fsiUbCz7IceO8rQXSoGua5xzd6dc9N6f7VNb8heHMWDc</recordid><startdate>2002</startdate><enddate>2002</enddate><creator>Lopez Dekker, P.</creator><creator>Farquharson, G.</creator><creator>Frasier, S.J.</creator><general>IEEE</general><scope>6IE</scope><scope>6IH</scope><scope>CBEJK</scope><scope>RIE</scope><scope>RIO</scope><scope>IQODW</scope></search><sort><creationdate>2002</creationdate><title>Entropy based phase calibration of antenna arrays for digital beamforming remote sensing radars</title><author>Lopez Dekker, P. ; Farquharson, G. ; Frasier, S.J.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-i134t-fd9827e7b7223a8338a1eb0b1319fcb0d7cfad94766c0bec0dd9cc97b17504623</frbrgroupid><rsrctype>conference_proceedings</rsrctype><prefilter>conference_proceedings</prefilter><language>eng</language><creationdate>2002</creationdate><topic>Antenna arrays</topic><topic>Antennas</topic><topic>Applied sciences</topic><topic>Array signal processing</topic><topic>Calibration</topic><topic>Entropy</topic><topic>Error correction</topic><topic>Exact sciences and technology</topic><topic>Phased arrays</topic><topic>Radar antennas</topic><topic>Radar imaging</topic><topic>Radar remote sensing</topic><topic>Radiocommunications</topic><topic>Radiolocalization and radionavigation</topic><topic>Remote sensing</topic><topic>Telecommunications</topic><topic>Telecommunications and information theory</topic><toplevel>online_resources</toplevel><creatorcontrib>Lopez Dekker, P.</creatorcontrib><creatorcontrib>Farquharson, G.</creatorcontrib><creatorcontrib>Frasier, S.J.</creatorcontrib><collection>IEEE Electronic Library (IEL) Conference Proceedings</collection><collection>IEEE Proceedings Order Plan (POP) 1998-present by volume</collection><collection>IEEE Xplore All Conference Proceedings</collection><collection>IEEE Xplore</collection><collection>IEEE Proceedings Order Plans (POP) 1998-present</collection><collection>Pascal-Francis</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Lopez Dekker, P.</au><au>Farquharson, G.</au><au>Frasier, S.J.</au><format>book</format><genre>proceeding</genre><ristype>CONF</ristype><atitle>Entropy based phase calibration of antenna arrays for digital beamforming remote sensing radars</atitle><btitle>Proceedings of the 2002 IEEE Radar Conference (IEEE Cat. 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identifier	ISBN: 9780780373570
ispartof	Proceedings of the 2002 IEEE Radar Conference (IEEE Cat. No.02CH37322), 2002, p.445-452
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language	eng
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source	IEEE Electronic Library (IEL) Conference Proceedings
subjects	Antenna arrays Antennas Applied sciences Array signal processing Calibration Entropy Error correction Exact sciences and technology Phased arrays Radar antennas Radar imaging Radar remote sensing Radiocommunications Radiolocalization and radionavigation Remote sensing Telecommunications Telecommunications and information theory
title	Entropy based phase calibration of antenna arrays for digital beamforming remote sensing radars
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