{"id":"https://openalex.org/W2901292195","doi":"https://doi.org/10.1109/igarss.2018.8519221","title":"A Novel Initialization Method for Em-Based Isar Scatterer Trajectory Matrix Completion","display_name":"A Novel Initialization Method for Em-Based Isar Scatterer Trajectory Matrix Completion","publication_year":2018,"publication_date":"2018-07-01","ids":{"openalex":"https://openalex.org/W2901292195","doi":"https://doi.org/10.1109/igarss.2018.8519221","mag":"2901292195"},"language":"en","primary_location":{"id":"doi:10.1109/igarss.2018.8519221","is_oa":false,"landing_page_url":"http://doi.org/10.1109/igarss.2018.8519221","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IGARSS 2018 - 2018 IEEE International Geoscience and Remote Sensing Symposium","raw_type":"proceedings-article"},"type":"article","indexed_in":["crossref"],"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/A5100349532","display_name":"Lei Liu","orcid":"https://orcid.org/0009-0002-8174-9381"},"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":true,"raw_author_name":"Lei Liu","raw_affiliation_strings":["Key Laboratory of Electronic Information Counter Measure and Simulation Technology of Ministry Education, Xidian University, Xi'an, 710071, China"],"affiliations":[{"raw_affiliation_string":"Key Laboratory of Electronic Information Counter Measure and Simulation Technology of Ministry Education, Xidian University, Xi'an, 710071, China","institution_ids":["https://openalex.org/I149594827"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5080509511","display_name":"Feng Zhou","orcid":"https://orcid.org/0000-0002-1514-7393"},"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":"Feng Zhou","raw_affiliation_strings":["Key Laboratory of Electronic Information Counter Measure and Simulation Technology of Ministry Education, Xidian University, Xi'an, 710071, China"],"affiliations":[{"raw_affiliation_string":"Key Laboratory of Electronic Information Counter Measure and Simulation Technology of Ministry Education, Xidian University, Xi'an, 710071, China","institution_ids":["https://openalex.org/I149594827"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5078540251","display_name":"Xiaoran Shi","orcid":"https://orcid.org/0000-0003-4636-2966"},"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":"Xiaoran Shi","raw_affiliation_strings":["Key Laboratory of Electronic Information Counter Measure and Simulation Technology of Ministry Education, Xidian University, Xi'an, 710071, China"],"affiliations":[{"raw_affiliation_string":"Key Laboratory of Electronic Information Counter Measure and Simulation Technology of Ministry Education, Xidian University, Xi'an, 710071, China","institution_ids":["https://openalex.org/I149594827"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5100349532"],"corresponding_institution_ids":["https://openalex.org/I149594827"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.08137983,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"2286","last_page":"2289"},"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/T10801","display_name":"Synthetic Aperture Radar (SAR) Applications and Techniques","score":0.9993000030517578,"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/T11698","display_name":"Underwater Acoustics Research","score":0.998199999332428,"subfield":{"id":"https://openalex.org/subfields/1910","display_name":"Oceanography"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/initialization","display_name":"Initialization","score":0.8172492384910583},{"id":"https://openalex.org/keywords/inverse-synthetic-aperture-radar","display_name":"Inverse synthetic aperture radar","score":0.7860363721847534},{"id":"https://openalex.org/keywords/trajectory","display_name":"Trajectory","score":0.7003744840621948},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6954118013381958},{"id":"https://openalex.org/keywords/matrix-completion","display_name":"Matrix completion","score":0.5117623805999756},{"id":"https://openalex.org/keywords/matrix","display_name":"Matrix (chemical analysis)","score":0.5004925727844238},{"id":"https://openalex.org/keywords/matrix-algebra","display_name":"Matrix algebra","score":0.4904734790325165},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.37037771940231323},{"id":"https://openalex.org/keywords/radar-imaging","display_name":"Radar imaging","score":0.29688772559165955},{"id":"https://openalex.org/keywords/radar","display_name":"Radar","score":0.2733047902584076},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.14775297045707703},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.12515348196029663}],"concepts":[{"id":"https://openalex.org/C114466953","wikidata":"https://www.wikidata.org/wiki/Q6034165","display_name":"Initialization","level":2,"score":0.8172492384910583},{"id":"https://openalex.org/C109094680","wikidata":"https://www.wikidata.org/wiki/Q6060432","display_name":"Inverse synthetic aperture radar","level":4,"score":0.7860363721847534},{"id":"https://openalex.org/C13662910","wikidata":"https://www.wikidata.org/wiki/Q193139","display_name":"Trajectory","level":2,"score":0.7003744840621948},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6954118013381958},{"id":"https://openalex.org/C2778459887","wikidata":"https://www.wikidata.org/wiki/Q6787865","display_name":"Matrix completion","level":3,"score":0.5117623805999756},{"id":"https://openalex.org/C106487976","wikidata":"https://www.wikidata.org/wiki/Q685816","display_name":"Matrix (chemical analysis)","level":2,"score":0.5004925727844238},{"id":"https://openalex.org/C2988995629","wikidata":"https://www.wikidata.org/wiki/Q2915729","display_name":"Matrix algebra","level":3,"score":0.4904734790325165},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.37037771940231323},{"id":"https://openalex.org/C10929652","wikidata":"https://www.wikidata.org/wiki/Q7279985","display_name":"Radar imaging","level":3,"score":0.29688772559165955},{"id":"https://openalex.org/C554190296","wikidata":"https://www.wikidata.org/wiki/Q47528","display_name":"Radar","level":2,"score":0.2733047902584076},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.14775297045707703},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.12515348196029663},{"id":"https://openalex.org/C158693339","wikidata":"https://www.wikidata.org/wiki/Q190524","display_name":"Eigenvalues and eigenvectors","level":2,"score":0.0},{"id":"https://openalex.org/C163716315","wikidata":"https://www.wikidata.org/wiki/Q901177","display_name":"Gaussian","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/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","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},{"id":"https://openalex.org/C159985019","wikidata":"https://www.wikidata.org/wiki/Q181790","display_name":"Composite material","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":1,"locations":[{"id":"doi:10.1109/igarss.2018.8519221","is_oa":false,"landing_page_url":"http://doi.org/10.1109/igarss.2018.8519221","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IGARSS 2018 - 2018 IEEE International Geoscience and Remote Sensing Symposium","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":9,"referenced_works":["https://openalex.org/W2024889414","https://openalex.org/W2096298745","https://openalex.org/W2105064983","https://openalex.org/W2114838992","https://openalex.org/W2127021804","https://openalex.org/W2138835141","https://openalex.org/W2140427427","https://openalex.org/W2278462206","https://openalex.org/W2283642922"],"related_works":["https://openalex.org/W3176564347","https://openalex.org/W3031039437","https://openalex.org/W4312051587","https://openalex.org/W2763830593","https://openalex.org/W3139326554","https://openalex.org/W2801810504","https://openalex.org/W1980119287","https://openalex.org/W2962884438","https://openalex.org/W2169616092","https://openalex.org/W2986925424"],"abstract_inverted_index":{"To":[0],"improve":[1],"the":[2,10,31,36,55,61,71,80,86,97,100],"performance":[3],"of":[4,13,35,49,89,99],"expectation":[5],"maximization":[6],"(EM)":[7],"in":[8],"retrieving":[9],"missing":[11,62,72],"data":[12,48,73,95],"inverse":[14],"synthetic":[15],"aperture":[16],"radar":[17],"(ISAR)":[18],"scatterer":[19,38,51],"trajectory":[20,82],"matrix,":[21],"a":[22],"novel":[23],"initialization":[24,102],"method":[25,76],"is":[26,67,77],"proposed.":[27],"Firstly,":[28],"we":[29,53],"derive":[30],"ellipse":[32,44],"motion":[33],"dynamics":[34],"projected":[37],"trajectory.":[39],"Then,":[40],"based":[41],"on":[42,79],"estimated":[43],"parameters":[45],"using":[46,93],"known":[47],"each":[50],"trajectory,":[52],"propose":[54],"bidirectional":[56],"Kalman":[57],"filter":[58],"to":[59,69,84],"initialize":[60],"data.":[63],"Finally,":[64],"EM":[65],"algorithm":[66],"applied":[68],"estimate":[70],"and":[74],"factorization":[75],"performed":[78],"complete":[81],"matrix":[83],"obtain":[85],"three-dimensional":[87],"geometry":[88],"scatterers.":[90],"Experimental":[91],"results":[92],"simulated":[94],"verify":[96],"effectiveness":[98],"proposed":[101],"method.":[103]},"counts_by_year":[],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}