{"id":"https://openalex.org/W4311363771","doi":"https://doi.org/10.3390/rs14246321","title":"Near-Field 3D Sparse SAR Direct Imaging with Irregular Samples","display_name":"Near-Field 3D Sparse SAR Direct Imaging with Irregular Samples","publication_year":2022,"publication_date":"2022-12-13","ids":{"openalex":"https://openalex.org/W4311363771","doi":"https://doi.org/10.3390/rs14246321"},"language":"en","primary_location":{"id":"doi:10.3390/rs14246321","is_oa":true,"landing_page_url":"https://doi.org/10.3390/rs14246321","pdf_url":"https://www.mdpi.com/2072-4292/14/24/6321/pdf?version=1671593702","source":{"id":"https://openalex.org/S43295729","display_name":"Remote Sensing","issn_l":"2072-4292","issn":["2072-4292"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Remote Sensing","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://www.mdpi.com/2072-4292/14/24/6321/pdf?version=1671593702","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5100706355","display_name":"Shiqi Xing","orcid":"https://orcid.org/0000-0003-3044-764X"},"institutions":[{"id":"https://openalex.org/I170215575","display_name":"National University of Defense Technology","ror":"https://ror.org/05d2yfz11","country_code":"CN","type":"education","lineage":["https://openalex.org/I170215575"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Shiqi Xing","raw_affiliation_strings":["College of Electronic Science and Technology, National University of Defense Technology, Changsha 410073, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"College of Electronic Science and Technology, National University of Defense Technology, Changsha 410073, China","institution_ids":["https://openalex.org/I170215575"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5080496639","display_name":"Shaoqiu Song","orcid":"https://orcid.org/0000-0003-0031-3675"},"institutions":[{"id":"https://openalex.org/I170215575","display_name":"National University of Defense Technology","ror":"https://ror.org/05d2yfz11","country_code":"CN","type":"education","lineage":["https://openalex.org/I170215575"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Shaoqiu Song","raw_affiliation_strings":["College of Electronic Science and Technology, National University of Defense Technology, Changsha 410073, China"],"raw_orcid":"https://orcid.org/0000-0003-0031-3675","affiliations":[{"raw_affiliation_string":"College of Electronic Science and Technology, National University of Defense Technology, Changsha 410073, China","institution_ids":["https://openalex.org/I170215575"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5032417105","display_name":"Sinong Quan","orcid":"https://orcid.org/0000-0002-6908-1975"},"institutions":[{"id":"https://openalex.org/I170215575","display_name":"National University of Defense Technology","ror":"https://ror.org/05d2yfz11","country_code":"CN","type":"education","lineage":["https://openalex.org/I170215575"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Sinong Quan","raw_affiliation_strings":["College of Electronic Science and Technology, National University of Defense Technology, Changsha 410073, China"],"raw_orcid":"https://orcid.org/0000-0002-6908-1975","affiliations":[{"raw_affiliation_string":"College of Electronic Science and Technology, National University of Defense Technology, Changsha 410073, China","institution_ids":["https://openalex.org/I170215575"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100985379","display_name":"Dou Sun","orcid":null},"institutions":[{"id":"https://openalex.org/I4210163738","display_name":"China Astronaut Research and Training Center","ror":"https://ror.org/001ycj259","country_code":"CN","type":"facility","lineage":["https://openalex.org/I4210163738"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Dou Sun","raw_affiliation_strings":["The State Key Laboratory of Astronaute Dynamics Xi\u2019an, Xi\u2019an 710000, China","The State Key Laboratory of Astronaute Dynamics Xi'an, Xi'an 710000, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"The State Key Laboratory of Astronaute Dynamics Xi\u2019an, Xi\u2019an 710000, China","institution_ids":["https://openalex.org/I4210163738"]},{"raw_affiliation_string":"The State Key Laboratory of Astronaute Dynamics Xi'an, Xi'an 710000, China","institution_ids":["https://openalex.org/I4210163738"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100669438","display_name":"Junpeng Wang","orcid":"https://orcid.org/0000-0002-8810-3172"},"institutions":[{"id":"https://openalex.org/I170215575","display_name":"National University of Defense Technology","ror":"https://ror.org/05d2yfz11","country_code":"CN","type":"education","lineage":["https://openalex.org/I170215575"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Junpeng Wang","raw_affiliation_strings":["College of Electronic Science and Technology, National University of Defense Technology, Changsha 410073, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"College of Electronic Science and Technology, National University of Defense Technology, Changsha 410073, China","institution_ids":["https://openalex.org/I170215575"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5100691501","display_name":"Yongzhen Li","orcid":"https://orcid.org/0000-0003-4372-612X"},"institutions":[{"id":"https://openalex.org/I170215575","display_name":"National University of Defense Technology","ror":"https://ror.org/05d2yfz11","country_code":"CN","type":"education","lineage":["https://openalex.org/I170215575"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yongzhen Li","raw_affiliation_strings":["College of Electronic Science and Technology, National University of Defense Technology, Changsha 410073, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"College of Electronic Science and Technology, National University of Defense Technology, Changsha 410073, China","institution_ids":["https://openalex.org/I170215575"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":6,"corresponding_author_ids":["https://openalex.org/A5032417105"],"corresponding_institution_ids":["https://openalex.org/I170215575"],"apc_list":{"value":2500,"currency":"CHF","value_usd":2707},"apc_paid":{"value":2500,"currency":"CHF","value_usd":2707},"fwci":12.0991,"has_fulltext":false,"cited_by_count":20,"citation_normalized_percentile":{"value":0.97988295,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":95,"max":99},"biblio":{"volume":"14","issue":"24","first_page":"6321","last_page":"6321"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11038","display_name":"Advanced SAR Imaging Techniques","score":0.9998000264167786,"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":0.9998000264167786,"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":0.9990000128746033,"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"}},{"id":"https://openalex.org/T10752","display_name":"Terahertz technology and applications","score":0.9987999796867371,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic 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/computer-science","display_name":"Computer science","score":0.7609186172485352},{"id":"https://openalex.org/keywords/compressed-sensing","display_name":"Compressed sensing","score":0.6012652516365051},{"id":"https://openalex.org/keywords/synthetic-aperture-radar","display_name":"Synthetic aperture radar","score":0.5754079222679138},{"id":"https://openalex.org/keywords/sparse-approximation","display_name":"Sparse approximation","score":0.5658648610115051},{"id":"https://openalex.org/keywords/clutter","display_name":"Clutter","score":0.5612723231315613},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.5597817301750183},{"id":"https://openalex.org/keywords/sparse-matrix","display_name":"Sparse matrix","score":0.5237526893615723},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.5044218301773071},{"id":"https://openalex.org/keywords/iterative-reconstruction","display_name":"Iterative reconstruction","score":0.47227367758750916},{"id":"https://openalex.org/keywords/radar-imaging","display_name":"Radar imaging","score":0.42777276039123535},{"id":"https://openalex.org/keywords/computation","display_name":"Computation","score":0.41660821437835693},{"id":"https://openalex.org/keywords/computational-complexity-theory","display_name":"Computational complexity theory","score":0.41341933608055115},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.38007766008377075},{"id":"https://openalex.org/keywords/gaussian","display_name":"Gaussian","score":0.3386843800544739},{"id":"https://openalex.org/keywords/pattern-recognition","display_name":"Pattern recognition (psychology)","score":0.33057546615600586},{"id":"https://openalex.org/keywords/radar","display_name":"Radar","score":0.29487109184265137}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7609186172485352},{"id":"https://openalex.org/C124851039","wikidata":"https://www.wikidata.org/wiki/Q2665459","display_name":"Compressed sensing","level":2,"score":0.6012652516365051},{"id":"https://openalex.org/C87360688","wikidata":"https://www.wikidata.org/wiki/Q740686","display_name":"Synthetic aperture radar","level":2,"score":0.5754079222679138},{"id":"https://openalex.org/C124066611","wikidata":"https://www.wikidata.org/wiki/Q28684319","display_name":"Sparse approximation","level":2,"score":0.5658648610115051},{"id":"https://openalex.org/C132094186","wikidata":"https://www.wikidata.org/wiki/Q641585","display_name":"Clutter","level":3,"score":0.5612723231315613},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.5597817301750183},{"id":"https://openalex.org/C56372850","wikidata":"https://www.wikidata.org/wiki/Q1050404","display_name":"Sparse matrix","level":3,"score":0.5237526893615723},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.5044218301773071},{"id":"https://openalex.org/C141379421","wikidata":"https://www.wikidata.org/wiki/Q6094427","display_name":"Iterative reconstruction","level":2,"score":0.47227367758750916},{"id":"https://openalex.org/C10929652","wikidata":"https://www.wikidata.org/wiki/Q7279985","display_name":"Radar imaging","level":3,"score":0.42777276039123535},{"id":"https://openalex.org/C45374587","wikidata":"https://www.wikidata.org/wiki/Q12525525","display_name":"Computation","level":2,"score":0.41660821437835693},{"id":"https://openalex.org/C179799912","wikidata":"https://www.wikidata.org/wiki/Q205084","display_name":"Computational complexity theory","level":2,"score":0.41341933608055115},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.38007766008377075},{"id":"https://openalex.org/C163716315","wikidata":"https://www.wikidata.org/wiki/Q901177","display_name":"Gaussian","level":2,"score":0.3386843800544739},{"id":"https://openalex.org/C153180895","wikidata":"https://www.wikidata.org/wiki/Q7148389","display_name":"Pattern recognition (psychology)","level":2,"score":0.33057546615600586},{"id":"https://openalex.org/C554190296","wikidata":"https://www.wikidata.org/wiki/Q47528","display_name":"Radar","level":2,"score":0.29487109184265137},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.0},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.3390/rs14246321","is_oa":true,"landing_page_url":"https://doi.org/10.3390/rs14246321","pdf_url":"https://www.mdpi.com/2072-4292/14/24/6321/pdf?version=1671593702","source":{"id":"https://openalex.org/S43295729","display_name":"Remote Sensing","issn_l":"2072-4292","issn":["2072-4292"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Remote Sensing","raw_type":"journal-article"},{"id":"pmh:oai:doaj.org/article:2a2c1530de9247e1b4b0c186dcc95af6","is_oa":true,"landing_page_url":"https://doaj.org/article/2a2c1530de9247e1b4b0c186dcc95af6","pdf_url":null,"source":{"id":"https://openalex.org/S4306401280","display_name":"DOAJ (DOAJ: Directory of Open Access Journals)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by-sa","license_id":"https://openalex.org/licenses/cc-by-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Remote Sensing, Vol 14, Iss 24, p 6321 (2022)","raw_type":"article"},{"id":"pmh:oai:mdpi.com:/2072-4292/14/24/6321/","is_oa":true,"landing_page_url":"https://dx.doi.org/10.3390/rs14246321","pdf_url":null,"source":{"id":"https://openalex.org/S4306400947","display_name":"MDPI (MDPI AG)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I4210097602","host_organization_name":"Multidisciplinary Digital Publishing Institute (Switzerland)","host_organization_lineage":["https://openalex.org/I4210097602"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Remote Sensing; Volume 14; Issue 24; Pages: 6321","raw_type":"Text"}],"best_oa_location":{"id":"doi:10.3390/rs14246321","is_oa":true,"landing_page_url":"https://doi.org/10.3390/rs14246321","pdf_url":"https://www.mdpi.com/2072-4292/14/24/6321/pdf?version=1671593702","source":{"id":"https://openalex.org/S43295729","display_name":"Remote Sensing","issn_l":"2072-4292","issn":["2072-4292"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Remote Sensing","raw_type":"journal-article"},"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/11","display_name":"Sustainable cities and communities","score":0.6899999976158142}],"awards":[],"funders":[],"has_content":{"pdf":true,"grobid_xml":false},"content_urls":{"pdf":"https://content.openalex.org/works/W4311363771.pdf"},"referenced_works_count":43,"referenced_works":["https://openalex.org/W112006941","https://openalex.org/W1552832543","https://openalex.org/W1966248736","https://openalex.org/W1976147078","https://openalex.org/W1985885848","https://openalex.org/W1999212008","https://openalex.org/W2078940259","https://openalex.org/W2118198126","https://openalex.org/W2121077376","https://openalex.org/W2136005975","https://openalex.org/W2140856955","https://openalex.org/W2145781390","https://openalex.org/W2152336264","https://openalex.org/W2155684415","https://openalex.org/W2170585064","https://openalex.org/W2504827988","https://openalex.org/W2551738155","https://openalex.org/W2783022729","https://openalex.org/W2793086004","https://openalex.org/W2888041526","https://openalex.org/W2899839556","https://openalex.org/W2914353073","https://openalex.org/W2920459301","https://openalex.org/W2946608165","https://openalex.org/W2971806481","https://openalex.org/W3004393198","https://openalex.org/W3010373913","https://openalex.org/W3034494124","https://openalex.org/W3101101625","https://openalex.org/W3125372737","https://openalex.org/W3135214285","https://openalex.org/W3137925293","https://openalex.org/W3161161695","https://openalex.org/W3161237630","https://openalex.org/W3198891199","https://openalex.org/W3204217114","https://openalex.org/W4206943292","https://openalex.org/W4226443111","https://openalex.org/W4282970553","https://openalex.org/W4285183857","https://openalex.org/W4293098327","https://openalex.org/W4312400595","https://openalex.org/W6810861671"],"related_works":["https://openalex.org/W2091883426","https://openalex.org/W3173235360","https://openalex.org/W2737338842","https://openalex.org/W2174948646","https://openalex.org/W3005946484","https://openalex.org/W2024017047","https://openalex.org/W4318256793","https://openalex.org/W2051410394","https://openalex.org/W2594370889","https://openalex.org/W2390720471"],"abstract_inverted_index":{"Sparse":[0],"imaging":[1,21,81],"is":[2],"widely":[3],"used":[4],"in":[5,38,42,70,92,118],"synthetic":[6],"aperture":[7],"radar":[8],"(SAR)":[9],"imaging.":[10],"Compared":[11],"with":[12,52,141],"the":[13,25,34,45,67,93,98,103,109,154,160,164],"traditional":[14,56,142],"matched":[15],"filtering":[16],"(MF)":[17],"methods,":[18,147],"sparse":[19,50,57,78,116,145],"SAR":[20,79,94],"can":[22,113],"directly":[23],"image":[24,95,169],"scattered":[26],"points":[27],"of":[28,44,49,89,135,163],"a":[29,75,87,119],"target":[30],"and":[31,36,107,122,132,139,144,148,157],"effectively":[32,158],"reduce":[33,153],"sidelobes":[35],"clutter":[37],"irregular":[39,84,136],"samples.":[40],"However,":[41],"view":[43],"large-scale":[46],"computational":[47,63],"complexity":[48],"reconstruction":[51,58,117,146],"raw":[53],"echo":[54],"data,":[55],"algorithms":[59],"often":[60],"require":[61],"huge":[62],"expense.":[64],"To":[65],"solve":[66],"above":[68],"problems,":[69],"this":[71],"paper,":[72],"we":[73],"propose":[74],"3D":[76,115],"near-field":[77],"direct":[80,121],"algorithm":[82,127],"for":[83],"trajectories,":[85],"adopting":[86],"piece":[88],"preliminary":[90],"information":[91,162],"to":[96,151,166],"update":[97],"dictionary":[99],"matrix":[100],"dimension,":[101],"using":[102],"Gaussian":[104],"iterative":[105],"method,":[106],"optimizing":[108],"signal-processing":[110],"techniques,":[111],"which":[112],"achieve":[114,167],"more":[120],"rapid":[123],"manner.":[124],"The":[125],"proposed":[126],"was":[128,149],"validated":[129],"through":[130],"simulations":[131],"empirical":[133],"study":[134],"scanning":[137],"scenarios":[138],"compared":[140],"MF":[143],"shown":[150],"significantly":[152],"computation":[155],"time":[156],"preserve":[159],"complex":[161],"scenes":[165],"high-resolution":[168],"reconstruction.":[170]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":5},{"year":2024,"cited_by_count":10},{"year":2023,"cited_by_count":4}],"updated_date":"2026-06-13T07:54:00.901334","created_date":"2025-10-10T00:00:00"}