{"id":"https://openalex.org/W2921547609","doi":"https://doi.org/10.1109/access.2019.2904653","title":"A Novel Azimuth Doppler Signal Reconstruction Approach for the GEO-LEO Bi-Static Multi-Channel HRWS SAR System","display_name":"A Novel Azimuth Doppler Signal Reconstruction Approach for the GEO-LEO Bi-Static Multi-Channel HRWS SAR System","publication_year":2019,"publication_date":"2019-01-01","ids":{"openalex":"https://openalex.org/W2921547609","doi":"https://doi.org/10.1109/access.2019.2904653","mag":"2921547609"},"language":"en","primary_location":{"id":"doi:10.1109/access.2019.2904653","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2019.2904653","pdf_url":"https://ieeexplore.ieee.org/ielx7/6287639/8600701/08665898.pdf","source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"is_in_doaj":true,"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 Access","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://ieeexplore.ieee.org/ielx7/6287639/8600701/08665898.pdf","any_repository_has_fulltext":true},"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/I17145004","display_name":"Northwestern Polytechnical University","ror":"https://ror.org/01y0j0j86","country_code":"CN","type":"education","lineage":["https://openalex.org/I17145004"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Shuang-Xi Zhang","raw_affiliation_strings":["School of Electronics and Information, Northwestern Polytechnical University, Xian, China","ORCiD"],"raw_orcid":"https://orcid.org/0000-0001-8828-5490","affiliations":[{"raw_affiliation_string":"School of Electronics and Information, Northwestern Polytechnical University, Xian, China","institution_ids":["https://openalex.org/I17145004"]},{"raw_affiliation_string":"ORCiD","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100345018","display_name":"Shaojie Li","orcid":"https://orcid.org/0000-0003-2610-3086"},"institutions":[{"id":"https://openalex.org/I17145004","display_name":"Northwestern Polytechnical University","ror":"https://ror.org/01y0j0j86","country_code":"CN","type":"education","lineage":["https://openalex.org/I17145004"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Shaojie Li","raw_affiliation_strings":["School of Electronics and Information, Northwestern Polytechnical University, Xian, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Electronics and Information, Northwestern Polytechnical University, Xian, China","institution_ids":["https://openalex.org/I17145004"]}]},{"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/I4210088244","display_name":"Shanghai Micro Satellite Engineering Center","ror":"https://ror.org/003cp7918","country_code":"CN","type":"nonprofit","lineage":["https://openalex.org/I4210088244"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yanyang Liu","raw_affiliation_strings":["Department of Radar System Engineering, Shanghai Institute of Satellite Engineering, Shanghai, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Radar System Engineering, Shanghai Institute of Satellite Engineering, Shanghai, China","institution_ids":["https://openalex.org/I4210088244"]}]},{"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":["National Key Laboratory of Radar Signal Processing, Xidian University, Xi\u2019an, China","National Key Laboratory of Radar Signal Processing, Xidian University, Xi’an, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"National Key Laboratory of Radar Signal Processing, Xidian University, Xi\u2019an, China","institution_ids":["https://openalex.org/I149594827"]},{"raw_affiliation_string":"National Key Laboratory of Radar Signal Processing, Xidian University, Xi’an, China","institution_ids":["https://openalex.org/I149594827"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5008596733","display_name":"Junli Chen","orcid":"https://orcid.org/0000-0002-3858-4844"},"institutions":[{"id":"https://openalex.org/I4210153230","display_name":"Shanghai Academy of Spaceflight Technology","ror":"https://ror.org/050qhwt21","country_code":"CN","type":"government","lineage":["https://openalex.org/I2802615301","https://openalex.org/I4210153230"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Junli Chen","raw_affiliation_strings":["Department of Committee on Science and Technology, Shanghai Academy of Spaceflight Technology, Shanghai, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Committee on Science and Technology, Shanghai Academy of Spaceflight Technology, Shanghai, China","institution_ids":["https://openalex.org/I4210153230"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":4,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":{"value":1850,"currency":"USD","value_usd":1850},"apc_paid":{"value":1850,"currency":"USD","value_usd":1850},"fwci":17.9885,"has_fulltext":true,"cited_by_count":15,"citation_normalized_percentile":{"value":0.98528886,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":91,"max":98},"biblio":{"volume":"7","issue":null,"first_page":"39539","last_page":"39546"},"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":0.9940000176429749,"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":0.742380678653717},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.722911536693573},{"id":"https://openalex.org/keywords/synthetic-aperture-radar","display_name":"Synthetic aperture radar","score":0.6599296927452087},{"id":"https://openalex.org/keywords/doppler-effect","display_name":"Doppler effect","score":0.6041216254234314},{"id":"https://openalex.org/keywords/geosynchronous-orbit","display_name":"Geosynchronous orbit","score":0.5905393958091736},{"id":"https://openalex.org/keywords/chirp","display_name":"Chirp","score":0.5566813349723816},{"id":"https://openalex.org/keywords/remote-sensing","display_name":"Remote sensing","score":0.5196189284324646},{"id":"https://openalex.org/keywords/signal","display_name":"SIGNAL (programming language)","score":0.477545827627182},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.4665735960006714},{"id":"https://openalex.org/keywords/signal-reconstruction","display_name":"Signal reconstruction","score":0.45627492666244507},{"id":"https://openalex.org/keywords/fast-fourier-transform","display_name":"Fast Fourier transform","score":0.44574370980262756},{"id":"https://openalex.org/keywords/iterative-reconstruction","display_name":"Iterative reconstruction","score":0.4428868591785431},{"id":"https://openalex.org/keywords/fourier-transform","display_name":"Fourier transform","score":0.43523284792900085},{"id":"https://openalex.org/keywords/inverse-synthetic-aperture-radar","display_name":"Inverse synthetic aperture radar","score":0.4120233952999115},{"id":"https://openalex.org/keywords/radar-imaging","display_name":"Radar imaging","score":0.39214223623275757},{"id":"https://openalex.org/keywords/signal-processing","display_name":"Signal processing","score":0.3502488136291504},{"id":"https://openalex.org/keywords/radar","display_name":"Radar","score":0.3160713315010071},{"id":"https://openalex.org/keywords/geology","display_name":"Geology","score":0.30763423442840576},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.26791536808013916},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.2636643946170807},{"id":"https://openalex.org/keywords/optics","display_name":"Optics","score":0.19697865843772888},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.1922028660774231},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.14701369404792786},{"id":"https://openalex.org/keywords/satellite","display_name":"Satellite","score":0.09890076518058777}],"concepts":[{"id":"https://openalex.org/C159737794","wikidata":"https://www.wikidata.org/wiki/Q124274","display_name":"Azimuth","level":2,"score":0.742380678653717},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.722911536693573},{"id":"https://openalex.org/C87360688","wikidata":"https://www.wikidata.org/wiki/Q740686","display_name":"Synthetic aperture radar","level":2,"score":0.6599296927452087},{"id":"https://openalex.org/C142757262","wikidata":"https://www.wikidata.org/wiki/Q76436","display_name":"Doppler effect","level":2,"score":0.6041216254234314},{"id":"https://openalex.org/C94042562","wikidata":"https://www.wikidata.org/wiki/Q472251","display_name":"Geosynchronous orbit","level":3,"score":0.5905393958091736},{"id":"https://openalex.org/C132794960","wikidata":"https://www.wikidata.org/wiki/Q27304","display_name":"Chirp","level":3,"score":0.5566813349723816},{"id":"https://openalex.org/C62649853","wikidata":"https://www.wikidata.org/wiki/Q199687","display_name":"Remote sensing","level":1,"score":0.5196189284324646},{"id":"https://openalex.org/C2779843651","wikidata":"https://www.wikidata.org/wiki/Q7390335","display_name":"SIGNAL (programming language)","level":2,"score":0.477545827627182},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.4665735960006714},{"id":"https://openalex.org/C70958404","wikidata":"https://www.wikidata.org/wiki/Q7512728","display_name":"Signal reconstruction","level":4,"score":0.45627492666244507},{"id":"https://openalex.org/C75172450","wikidata":"https://www.wikidata.org/wiki/Q623950","display_name":"Fast Fourier transform","level":2,"score":0.44574370980262756},{"id":"https://openalex.org/C141379421","wikidata":"https://www.wikidata.org/wiki/Q6094427","display_name":"Iterative reconstruction","level":2,"score":0.4428868591785431},{"id":"https://openalex.org/C102519508","wikidata":"https://www.wikidata.org/wiki/Q6520159","display_name":"Fourier transform","level":2,"score":0.43523284792900085},{"id":"https://openalex.org/C109094680","wikidata":"https://www.wikidata.org/wiki/Q6060432","display_name":"Inverse synthetic aperture radar","level":4,"score":0.4120233952999115},{"id":"https://openalex.org/C10929652","wikidata":"https://www.wikidata.org/wiki/Q7279985","display_name":"Radar imaging","level":3,"score":0.39214223623275757},{"id":"https://openalex.org/C104267543","wikidata":"https://www.wikidata.org/wiki/Q208163","display_name":"Signal processing","level":3,"score":0.3502488136291504},{"id":"https://openalex.org/C554190296","wikidata":"https://www.wikidata.org/wiki/Q47528","display_name":"Radar","level":2,"score":0.3160713315010071},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.30763423442840576},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.26791536808013916},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.2636643946170807},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.19697865843772888},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.1922028660774231},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.14701369404792786},{"id":"https://openalex.org/C19269812","wikidata":"https://www.wikidata.org/wiki/Q26540","display_name":"Satellite","level":2,"score":0.09890076518058777},{"id":"https://openalex.org/C520434653","wikidata":"https://www.wikidata.org/wiki/Q38867","display_name":"Laser","level":2,"score":0.0},{"id":"https://openalex.org/C1276947","wikidata":"https://www.wikidata.org/wiki/Q333","display_name":"Astronomy","level":1,"score":0.0},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/access.2019.2904653","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2019.2904653","pdf_url":"https://ieeexplore.ieee.org/ielx7/6287639/8600701/08665898.pdf","source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"is_in_doaj":true,"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 Access","raw_type":"journal-article"},{"id":"pmh:oai:doaj.org/article:a04538a96e4642a5a8e922bc62605f26","is_oa":true,"landing_page_url":"https://doaj.org/article/a04538a96e4642a5a8e922bc62605f26","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":"IEEE Access, Vol 7, Pp 39539-39546 (2019)","raw_type":"article"}],"best_oa_location":{"id":"doi:10.1109/access.2019.2904653","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2019.2904653","pdf_url":"https://ieeexplore.ieee.org/ielx7/6287639/8600701/08665898.pdf","source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"is_in_doaj":true,"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 Access","raw_type":"journal-article"},"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G1808757722","display_name":null,"funder_award_id":"ASFC-20172053018","funder_id":"https://openalex.org/F4320322857","funder_display_name":"Aeronautical Science Foundation of China"},{"id":"https://openalex.org/G6733855868","display_name":null,"funder_award_id":"61801387","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G8239158288","display_name":null,"funder_award_id":"SAST2017-053","funder_id":"https://openalex.org/F4320330207","funder_display_name":"Shanghai Aerospace Science and Technology Innovation Foundation"}],"funders":[{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"},{"id":"https://openalex.org/F4320322857","display_name":"Aeronautical Science Foundation of China","ror":"https://ror.org/02wq41p38"},{"id":"https://openalex.org/F4320330207","display_name":"Shanghai Aerospace Science and Technology Innovation Foundation","ror":null}],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2921547609.pdf","grobid_xml":"https://content.openalex.org/works/W2921547609.grobid-xml"},"referenced_works_count":11,"referenced_works":["https://openalex.org/W1895555882","https://openalex.org/W1977854029","https://openalex.org/W2024071072","https://openalex.org/W2026057110","https://openalex.org/W2095807826","https://openalex.org/W2119586457","https://openalex.org/W2140990782","https://openalex.org/W2154063429","https://openalex.org/W2462749609","https://openalex.org/W2767691372","https://openalex.org/W3214953536"],"related_works":["https://openalex.org/W2743664886","https://openalex.org/W2390201687","https://openalex.org/W3107043386","https://openalex.org/W1968614671","https://openalex.org/W2023567515","https://openalex.org/W2259516185","https://openalex.org/W2544583951","https://openalex.org/W2806039373","https://openalex.org/W2166304072","https://openalex.org/W2973134935"],"abstract_inverted_index":{"For":[0],"the":[1,33,44,53,58,61,76,88,95,106,111,119,126,142,146],"geosynchronous-low":[2],"earth":[3],"orbit":[4],"(GEO-LEO)":[5],"bi-static":[6,133],"multi-channel":[7,47,134],"high-resolution":[8],"and":[9,82,110,145],"wide-swath":[10],"synthetic":[11],"aperture":[12],"radar":[13],"(HRWS":[14],"SAR)":[15],"system,":[16],"a":[17,101,130],"novel":[18],"azimuth":[19,34,68],"Doppler":[20,35,63,113,121],"signal":[21,69,122],"reconstruction":[22,123],"algorithm":[23],"is":[24,51,55],"developed":[25,72],"based":[26],"on":[27],"an":[28],"equivalent":[29],"baseline":[30,54,96,103],"approximating":[31],"in":[32,60],"chirp":[36,83],"Fourier":[37,64,84],"transform":[38,65,85],"domain.":[39],"The":[40,71],"main":[41],"difficulty":[42],"for":[43,105,129],"GEO-LEO":[45,132],"bistatic":[46],"HRWS":[48,135],"SAR":[49,91,136],"system":[50,137],"that":[52],"variant":[56],"with":[57],"scene":[59,109],"conventional":[62],"domain":[66],"during":[67],"reconstruction.":[70],"approach":[73],"first":[74],"employs":[75],"linear":[77],"range":[78],"cell":[79],"migration":[80],"correction":[81],"to":[86,140],"obtain":[87],"coarse-focused":[89],"ambiguity":[90],"image.":[92],"More":[93],"importantly,":[94],"component":[97],"can":[98,115],"be":[99,116],"approximated":[100],"uniform":[102],"length":[104],"whole":[107],"image":[108],"ambiguous":[112],"spectrum":[114],"reconstructed":[117],"using":[118],"available":[120],"approach.":[124,148],"Finally,":[125],"experimental":[127],"results":[128],"simulation":[131],"are":[138],"employed":[139],"validate":[141],"theoretical":[143],"investigations":[144],"proposed":[147]},"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":2},{"year":2023,"cited_by_count":2},{"year":2022,"cited_by_count":3},{"year":2021,"cited_by_count":2},{"year":2020,"cited_by_count":5}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}