{"id":"https://openalex.org/W1991674608","doi":"https://doi.org/10.1109/tip.2013.2274387","title":"A Robust Channel-Calibration Algorithm for Multi-Channel in Azimuth HRWS SAR Imaging Based on Local Maximum-Likelihood Weighted Minimum Entropy","display_name":"A Robust Channel-Calibration Algorithm for Multi-Channel in Azimuth HRWS SAR Imaging Based on Local Maximum-Likelihood Weighted Minimum Entropy","publication_year":2013,"publication_date":"2013-07-24","ids":{"openalex":"https://openalex.org/W1991674608","doi":"https://doi.org/10.1109/tip.2013.2274387","mag":"1991674608","pmid":"https://pubmed.ncbi.nlm.nih.gov/23893723"},"language":"en","primary_location":{"id":"doi:10.1109/tip.2013.2274387","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tip.2013.2274387","pdf_url":null,"source":{"id":"https://openalex.org/S4210173141","display_name":"IEEE Transactions on Image Processing","issn_l":"1057-7149","issn":["1057-7149","1941-0042"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Image Processing","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","pubmed"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5101860926","display_name":"Shuangxi Zhang","orcid":"https://orcid.org/0000-0001-8828-5490"},"institutions":[{"id":"https://openalex.org/I149594827","display_name":"Xidian University","ror":"https://ror.org/05s92vm98","country_code":"CN","type":"education","lineage":["https://openalex.org/I149594827"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Shuang-Xi Zhang","raw_affiliation_strings":["Xidian University, National Key Laboratory of Radar Signal Processing, Xi'an, China","Nat. key Lab. of Radar Signal Process., Xidian Univ., Xi'an, , China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Xidian University, National Key Laboratory of Radar Signal Processing, Xi'an, China","institution_ids":["https://openalex.org/I149594827"]},{"raw_affiliation_string":"Nat. key Lab. of Radar Signal Process., Xidian Univ., Xi'an, , China","institution_ids":["https://openalex.org/I149594827"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5021408538","display_name":"Mengdao Xing","orcid":"https://orcid.org/0000-0002-4084-0915"},"institutions":[{"id":"https://openalex.org/I149594827","display_name":"Xidian University","ror":"https://ror.org/05s92vm98","country_code":"CN","type":"education","lineage":["https://openalex.org/I149594827"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Meng-Dao Xing","raw_affiliation_strings":["Xidian University, National Key Laboratory of Radar Signal Processing, Xi'an, China","Nat. key Lab. of Radar Signal Process., Xidian Univ., Xi'an, , China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Xidian University, National Key Laboratory of Radar Signal Processing, Xi'an, China","institution_ids":["https://openalex.org/I149594827"]},{"raw_affiliation_string":"Nat. key Lab. of Radar Signal Process., Xidian Univ., Xi'an, , China","institution_ids":["https://openalex.org/I149594827"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5065367615","display_name":"Xiang\u2010Gen Xia","orcid":"https://orcid.org/0000-0002-5599-7683"},"institutions":[{"id":"https://openalex.org/I86501945","display_name":"University of Delaware","ror":"https://ror.org/01sbq1a82","country_code":"US","type":"education","lineage":["https://openalex.org/I86501945"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Xiang-Gen Xia","raw_affiliation_strings":["Department of Electrical and Computer Engineering, University of Delaware, Newark, DE, USA","Dept. of Electr. & Comput. Eng., Univ. of Delaware, Newark, DE, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electrical and Computer Engineering, University of Delaware, Newark, DE, USA","institution_ids":["https://openalex.org/I86501945"]},{"raw_affiliation_string":"Dept. of Electr. & Comput. Eng., Univ. of Delaware, Newark, DE, USA","institution_ids":["https://openalex.org/I86501945"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5024474468","display_name":"Yanyang Liu","orcid":"https://orcid.org/0000-0002-6270-0948"},"institutions":[{"id":"https://openalex.org/I149594827","display_name":"Xidian University","ror":"https://ror.org/05s92vm98","country_code":"CN","type":"education","lineage":["https://openalex.org/I149594827"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yan-Yang Liu","raw_affiliation_strings":["Xidian University, National Key Laboratory of Radar Signal Processing, Xi'an, China","Nat. key Lab. of Radar Signal Process., Xidian Univ., Xi'an, , China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Xidian University, National Key Laboratory of Radar Signal Processing, Xi'an, China","institution_ids":["https://openalex.org/I149594827"]},{"raw_affiliation_string":"Nat. key Lab. of Radar Signal Process., Xidian Univ., Xi'an, , China","institution_ids":["https://openalex.org/I149594827"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5090880123","display_name":"Rui Guo","orcid":"https://orcid.org/0000-0002-0403-5142"},"institutions":[{"id":"https://openalex.org/I149594827","display_name":"Xidian University","ror":"https://ror.org/05s92vm98","country_code":"CN","type":"education","lineage":["https://openalex.org/I149594827"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Rui Guo","raw_affiliation_strings":["Xidian University, National Key Laboratory of Radar Signal Processing, Xi'an, China","Nat. key Lab. of Radar Signal Process., Xidian Univ., Xi'an, , China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Xidian University, National Key Laboratory of Radar Signal Processing, Xi'an, China","institution_ids":["https://openalex.org/I149594827"]},{"raw_affiliation_string":"Nat. key Lab. of Radar Signal Process., Xidian Univ., Xi'an, , China","institution_ids":["https://openalex.org/I149594827"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5102927094","display_name":"Zheng Bao","orcid":"https://orcid.org/0000-0002-7348-7644"},"institutions":[{"id":"https://openalex.org/I149594827","display_name":"Xidian University","ror":"https://ror.org/05s92vm98","country_code":"CN","type":"education","lineage":["https://openalex.org/I149594827"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Zheng Bao","raw_affiliation_strings":["Xidian University, National Key Laboratory of Radar Signal Processing, Xi'an, China","Nat. key Lab. of Radar Signal Process., Xidian Univ., Xi'an, , China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Xidian University, National Key Laboratory of Radar Signal Processing, Xi'an, China","institution_ids":["https://openalex.org/I149594827"]},{"raw_affiliation_string":"Nat. key Lab. of Radar Signal Process., Xidian Univ., Xi'an, , China","institution_ids":["https://openalex.org/I149594827"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":62.8901,"has_fulltext":false,"cited_by_count":65,"citation_normalized_percentile":{"value":0.99585782,"is_in_top_1_percent":true,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":94,"max":99},"biblio":{"volume":"22","issue":"12","first_page":"5294","last_page":"5305"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11038","display_name":"Advanced SAR Imaging Techniques","score":1.0,"subfield":{"id":"https://openalex.org/subfields/2202","display_name":"Aerospace Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T11038","display_name":"Advanced SAR Imaging Techniques","score":1.0,"subfield":{"id":"https://openalex.org/subfields/2202","display_name":"Aerospace Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10801","display_name":"Synthetic Aperture Radar (SAR) Applications and Techniques","score":0.9995999932289124,"subfield":{"id":"https://openalex.org/subfields/2202","display_name":"Aerospace Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11739","display_name":"Microwave Imaging and Scattering Analysis","score":0.9939000010490417,"subfield":{"id":"https://openalex.org/subfields/2204","display_name":"Biomedical Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/azimuth","display_name":"Azimuth","score":0.763019859790802},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.718187689781189},{"id":"https://openalex.org/keywords/synthetic-aperture-radar","display_name":"Synthetic aperture radar","score":0.664977490901947},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.5709584951400757},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.5138481259346008},{"id":"https://openalex.org/keywords/remote-sensing","display_name":"Remote sensing","score":0.4301985502243042},{"id":"https://openalex.org/keywords/entropy","display_name":"Entropy (arrow of time)","score":0.42700350284576416},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.29117706418037415},{"id":"https://openalex.org/keywords/optics","display_name":"Optics","score":0.1394459307193756},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.1149444580078125},{"id":"https://openalex.org/keywords/geology","display_name":"Geology","score":0.10955733060836792},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.09638604521751404}],"concepts":[{"id":"https://openalex.org/C159737794","wikidata":"https://www.wikidata.org/wiki/Q124274","display_name":"Azimuth","level":2,"score":0.763019859790802},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.718187689781189},{"id":"https://openalex.org/C87360688","wikidata":"https://www.wikidata.org/wiki/Q740686","display_name":"Synthetic aperture radar","level":2,"score":0.664977490901947},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.5709584951400757},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.5138481259346008},{"id":"https://openalex.org/C62649853","wikidata":"https://www.wikidata.org/wiki/Q199687","display_name":"Remote sensing","level":1,"score":0.4301985502243042},{"id":"https://openalex.org/C106301342","wikidata":"https://www.wikidata.org/wiki/Q4117933","display_name":"Entropy (arrow of time)","level":2,"score":0.42700350284576416},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.29117706418037415},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.1394459307193756},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.1149444580078125},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.10955733060836792},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.09638604521751404},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/tip.2013.2274387","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tip.2013.2274387","pdf_url":null,"source":{"id":"https://openalex.org/S4210173141","display_name":"IEEE Transactions on Image Processing","issn_l":"1057-7149","issn":["1057-7149","1941-0042"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Image Processing","raw_type":"journal-article"},{"id":"pmid:23893723","is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/23893723","pdf_url":null,"source":{"id":"https://openalex.org/S4306525036","display_name":"PubMed","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I1299303238","host_organization_name":"National Institutes of Health","host_organization_lineage":["https://openalex.org/I1299303238"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE transactions on image processing : a publication of the IEEE Signal Processing Society","raw_type":null}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Affordable and clean energy","score":0.4099999964237213,"id":"https://metadata.un.org/sdg/7"}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":40,"referenced_works":["https://openalex.org/W1527747735","https://openalex.org/W1929908452","https://openalex.org/W1973476824","https://openalex.org/W1977957956","https://openalex.org/W1985053641","https://openalex.org/W2013507212","https://openalex.org/W2024071072","https://openalex.org/W2025943163","https://openalex.org/W2030625155","https://openalex.org/W2048659479","https://openalex.org/W2090265124","https://openalex.org/W2092755806","https://openalex.org/W2095780745","https://openalex.org/W2097233876","https://openalex.org/W2097670707","https://openalex.org/W2110965352","https://openalex.org/W2111650247","https://openalex.org/W2111937449","https://openalex.org/W2114152188","https://openalex.org/W2118809607","https://openalex.org/W2120024360","https://openalex.org/W2121266666","https://openalex.org/W2125001275","https://openalex.org/W2128668801","https://openalex.org/W2131227606","https://openalex.org/W2140990782","https://openalex.org/W2141795796","https://openalex.org/W2143070649","https://openalex.org/W2145348268","https://openalex.org/W2146300953","https://openalex.org/W2148525506","https://openalex.org/W2165399609","https://openalex.org/W2171049624","https://openalex.org/W2253118486","https://openalex.org/W2321566973","https://openalex.org/W2393916651","https://openalex.org/W2539654944","https://openalex.org/W6676746896","https://openalex.org/W6678516455","https://openalex.org/W6691747003"],"related_works":["https://openalex.org/W3006474185","https://openalex.org/W2483195039","https://openalex.org/W2048211457","https://openalex.org/W2281797687","https://openalex.org/W2358411735","https://openalex.org/W4250650723","https://openalex.org/W2068843146","https://openalex.org/W2462749609","https://openalex.org/W4252699458","https://openalex.org/W4387698255"],"abstract_inverted_index":{"High-resolution":[0],"and":[1,25,30,106,115],"wide-swath":[2],"(HRWS)":[3],"synthetic":[4],"aperture":[5],"radar":[6],"(SAR)":[7],"is":[8,80,93,131,149,168,189],"an":[9,32],"essential":[10],"tool":[11],"for":[12,82],"modern":[13],"remote":[14],"sensing.":[15],"To":[16],"effectively":[17],"deal":[18],"with":[19],"the":[20,46,49,52,62,65,83,109,121,124,128,140,143,172,175,193,196],"contradiction":[21],"problem":[22],"between":[23],"high-resolution":[24],"low":[26],"pulse":[27],"repetition":[28],"frequency":[29],"obtain":[31],"HRWS":[33,87,164,186],"SAR":[34,40,88,165],"image,":[35],"a":[36,71,96,152],"multi-channel":[37,84,161,183],"in":[38,45,85,103,113,120,137,147,162,184],"azimuth":[39,86,163,185],"system":[41],"has":[42],"been":[43,118],"adopted":[44,169],"literature.":[47],"However,":[48],"performance":[50,173],"of":[51,108,123,142,174,195],"Doppler":[53],"ambiguity":[54],"suppression":[55],"via":[56],"digital":[57],"beam":[58],"forming":[59],"processing":[60],"suffers":[61],"losses":[63],"from":[64],"channel":[66,105,111,135,145],"mismatch.":[67],"In":[68],"this":[69],"paper,":[70],"robust":[72],"channel-calibration":[73],"algorithm":[74,92],"based":[75],"on":[76],"weighted":[77,155],"minimum":[78,156],"entropy":[79,157],"proposed":[81,91,176,197],"imaging.":[89],"The":[90,100,159],"implemented":[94],"by":[95,151],"two-step":[97],"process.":[98],"1)":[99],"timing":[101],"uncertainty":[102],"each":[104],"most":[107],"range-invariant":[110],"mismatches":[112],"amplitude":[114],"phase":[116,148],"have":[117],"corrected":[119],"pre-processing":[122],"coarse-compensation.":[125],"2)":[126],"After":[127],"pre-processing,":[129],"there":[130],"only":[132],"residual":[133],"range-dependent":[134,144],"mismatch":[136,146],"phase.":[138],"Then,":[139,178],"retrieval":[141],"achieved":[150],"local":[153],"maximum-likelihood":[154],"algorithm.":[158,177],"simulated":[160],"data":[166,188],"experiment":[167],"to":[170,191],"evaluate":[171],"some":[179],"real":[180],"measured":[181],"airborne":[182],"Scan-SAR":[187],"used":[190],"demonstrate":[192],"effectiveness":[194],"approach.":[198]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":6},{"year":2024,"cited_by_count":11},{"year":2023,"cited_by_count":5},{"year":2022,"cited_by_count":8},{"year":2021,"cited_by_count":10},{"year":2020,"cited_by_count":5},{"year":2019,"cited_by_count":4},{"year":2018,"cited_by_count":4},{"year":2017,"cited_by_count":2},{"year":2016,"cited_by_count":5},{"year":2015,"cited_by_count":2},{"year":2013,"cited_by_count":2}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
