{"id":"https://openalex.org/W2073844520","doi":"https://doi.org/10.1109/igarss.2014.6946436","title":"Multi-baseline phase unwrapping via maximum likelihood phase gradient estimation","display_name":"Multi-baseline phase unwrapping via maximum likelihood phase gradient estimation","publication_year":2014,"publication_date":"2014-07-01","ids":{"openalex":"https://openalex.org/W2073844520","doi":"https://doi.org/10.1109/igarss.2014.6946436","mag":"2073844520"},"language":"en","primary_location":{"id":"doi:10.1109/igarss.2014.6946436","is_oa":false,"landing_page_url":"https://doi.org/10.1109/igarss.2014.6946436","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2014 IEEE Geoscience and Remote Sensing Symposium","raw_type":"proceedings-article"},"type":"conference-paper","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/A5102070140","display_name":"Yanan You","orcid":null},"institutions":[{"id":"https://openalex.org/I82880672","display_name":"Beihang University","ror":"https://ror.org/00wk2mp56","country_code":"CN","type":"education","lineage":["https://openalex.org/I82880672"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yanan You","raw_affiliation_strings":["School of Electronic and Information Engineering, Beihang University, Beijing, China","School of Electronic and Information Engineering, Beihang University, 100191 Beijing, China#TAB#"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Electronic and Information Engineering, Beihang University, Beijing, China","institution_ids":["https://openalex.org/I82880672"]},{"raw_affiliation_string":"School of Electronic and Information Engineering, Beihang University, 100191 Beijing, China#TAB#","institution_ids":["https://openalex.org/I82880672"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5103575731","display_name":"Huaping Xu","orcid":null},"institutions":[{"id":"https://openalex.org/I82880672","display_name":"Beihang University","ror":"https://ror.org/00wk2mp56","country_code":"CN","type":"education","lineage":["https://openalex.org/I82880672"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Huaping Xu","raw_affiliation_strings":["School of Electronic and Information Engineering, Beihang University, Beijing, China","School of Electronic and Information Engineering, Beihang University, 100191 Beijing, China#TAB#"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Electronic and Information Engineering, Beihang University, Beijing, China","institution_ids":["https://openalex.org/I82880672"]},{"raw_affiliation_string":"School of Electronic and Information Engineering, Beihang University, 100191 Beijing, China#TAB#","institution_ids":["https://openalex.org/I82880672"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100610173","display_name":"Jianlong Li","orcid":"https://orcid.org/0000-0002-8205-9334"},"institutions":[{"id":"https://openalex.org/I82880672","display_name":"Beihang University","ror":"https://ror.org/00wk2mp56","country_code":"CN","type":"education","lineage":["https://openalex.org/I82880672"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Jianlong Li","raw_affiliation_strings":["School of Electronic and Information Engineering, Beihang University, Beijing, China","School of Electronic and Information Engineering, Beihang University, 100191 Beijing, China#TAB#"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Electronic and Information Engineering, Beihang University, Beijing, China","institution_ids":["https://openalex.org/I82880672"]},{"raw_affiliation_string":"School of Electronic and Information Engineering, Beihang University, 100191 Beijing, China#TAB#","institution_ids":["https://openalex.org/I82880672"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100440509","display_name":"Chunsheng Li","orcid":"https://orcid.org/0000-0002-6041-2854"},"institutions":[{"id":"https://openalex.org/I82880672","display_name":"Beihang University","ror":"https://ror.org/00wk2mp56","country_code":"CN","type":"education","lineage":["https://openalex.org/I82880672"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Chunsheng Li","raw_affiliation_strings":["School of Electronic and Information Engineering, Beihang University, Beijing, China","School of Electronic and Information Engineering, Beihang University, 100191 Beijing, China#TAB#"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Electronic and Information Engineering, Beihang University, Beijing, China","institution_ids":["https://openalex.org/I82880672"]},{"raw_affiliation_string":"School of Electronic and Information Engineering, Beihang University, 100191 Beijing, China#TAB#","institution_ids":["https://openalex.org/I82880672"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5049969156","display_name":"Lvqian Zhang","orcid":null},"institutions":[{"id":"https://openalex.org/I82880672","display_name":"Beihang University","ror":"https://ror.org/00wk2mp56","country_code":"CN","type":"education","lineage":["https://openalex.org/I82880672"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Lvqian Zhang","raw_affiliation_strings":["School of Electronic and Information Engineering, Beihang University, Beijing, China","School of Electronic and Information Engineering, Beihang University, 100191 Beijing, China#TAB#"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Electronic and Information Engineering, Beihang University, Beijing, China","institution_ids":["https://openalex.org/I82880672"]},{"raw_affiliation_string":"School of Electronic and Information Engineering, Beihang University, 100191 Beijing, China#TAB#","institution_ids":["https://openalex.org/I82880672"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5083018949","display_name":"Peng Xiao","orcid":"https://orcid.org/0000-0003-3018-8385"},"institutions":[{"id":"https://openalex.org/I82880672","display_name":"Beihang University","ror":"https://ror.org/00wk2mp56","country_code":"CN","type":"education","lineage":["https://openalex.org/I82880672"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Peng Xiao","raw_affiliation_strings":["School of Electronic and Information Engineering, Beihang University, Beijing, China","School of Electronic and Information Engineering, Beihang University, 100191 Beijing, China#TAB#"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Electronic and Information Engineering, Beihang University, Beijing, China","institution_ids":["https://openalex.org/I82880672"]},{"raw_affiliation_string":"School of Electronic and Information Engineering, Beihang University, 100191 Beijing, China#TAB#","institution_ids":["https://openalex.org/I82880672"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I82880672"],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":4,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"374","last_page":"377"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10801","display_name":"Synthetic Aperture Radar (SAR) Applications and Techniques","score":0.9998999834060669,"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/T10801","display_name":"Synthetic Aperture Radar (SAR) Applications and Techniques","score":0.9998999834060669,"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/T11312","display_name":"Soil Moisture and Remote Sensing","score":0.9944000244140625,"subfield":{"id":"https://openalex.org/subfields/2305","display_name":"Environmental Engineering"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11609","display_name":"Geophysical Methods and Applications","score":0.9918000102043152,"subfield":{"id":"https://openalex.org/subfields/2212","display_name":"Ocean 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/phase-unwrapping","display_name":"Phase unwrapping","score":0.7327942848205566},{"id":"https://openalex.org/keywords/baseline","display_name":"Baseline (sea)","score":0.7007766366004944},{"id":"https://openalex.org/keywords/phase","display_name":"Phase (matter)","score":0.631819486618042},{"id":"https://openalex.org/keywords/maximum-likelihood","display_name":"Maximum likelihood","score":0.5968540906906128},{"id":"https://openalex.org/keywords/interferometric-synthetic-aperture-radar","display_name":"Interferometric synthetic aperture radar","score":0.577547013759613},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5289323925971985},{"id":"https://openalex.org/keywords/estimation-theory","display_name":"Estimation theory","score":0.4471309185028076},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.4374500811100006},{"id":"https://openalex.org/keywords/interval","display_name":"Interval (graph theory)","score":0.4163789749145508},{"id":"https://openalex.org/keywords/synthetic-aperture-radar","display_name":"Synthetic aperture radar","score":0.3705567717552185},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.33434808254241943},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.2742112874984741},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.2628754675388336},{"id":"https://openalex.org/keywords/interferometry","display_name":"Interferometry","score":0.11174929141998291},{"id":"https://openalex.org/keywords/optics","display_name":"Optics","score":0.10029202699661255},{"id":"https://openalex.org/keywords/geology","display_name":"Geology","score":0.09573826193809509},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.07982432842254639}],"concepts":[{"id":"https://openalex.org/C3020654733","wikidata":"https://www.wikidata.org/wiki/Q6038852","display_name":"Phase unwrapping","level":3,"score":0.7327942848205566},{"id":"https://openalex.org/C12725497","wikidata":"https://www.wikidata.org/wiki/Q810247","display_name":"Baseline (sea)","level":2,"score":0.7007766366004944},{"id":"https://openalex.org/C44280652","wikidata":"https://www.wikidata.org/wiki/Q104837","display_name":"Phase (matter)","level":2,"score":0.631819486618042},{"id":"https://openalex.org/C49781872","wikidata":"https://www.wikidata.org/wiki/Q1045555","display_name":"Maximum likelihood","level":2,"score":0.5968540906906128},{"id":"https://openalex.org/C22286887","wikidata":"https://www.wikidata.org/wiki/Q1666056","display_name":"Interferometric synthetic aperture radar","level":3,"score":0.577547013759613},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5289323925971985},{"id":"https://openalex.org/C167928553","wikidata":"https://www.wikidata.org/wiki/Q1376021","display_name":"Estimation theory","level":2,"score":0.4471309185028076},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.4374500811100006},{"id":"https://openalex.org/C2778067643","wikidata":"https://www.wikidata.org/wiki/Q166507","display_name":"Interval (graph theory)","level":2,"score":0.4163789749145508},{"id":"https://openalex.org/C87360688","wikidata":"https://www.wikidata.org/wiki/Q740686","display_name":"Synthetic aperture radar","level":2,"score":0.3705567717552185},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.33434808254241943},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.2742112874984741},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.2628754675388336},{"id":"https://openalex.org/C166689943","wikidata":"https://www.wikidata.org/wiki/Q850283","display_name":"Interferometry","level":2,"score":0.11174929141998291},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.10029202699661255},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.09573826193809509},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.07982432842254639},{"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/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.0},{"id":"https://openalex.org/C111368507","wikidata":"https://www.wikidata.org/wiki/Q43518","display_name":"Oceanography","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/igarss.2014.6946436","is_oa":false,"landing_page_url":"https://doi.org/10.1109/igarss.2014.6946436","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2014 IEEE Geoscience and Remote Sensing Symposium","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[{"id":"https://openalex.org/F4320321125","display_name":"Beihang University","ror":"https://ror.org/00wk2mp56"},{"id":"https://openalex.org/F4320327471","display_name":"China Aerospace Science and Technology Corporation","ror":null},{"id":"https://openalex.org/F4320334924","display_name":"Program for New Century Excellent Talents in University","ror":"https://ror.org/01mv9t934"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":8,"referenced_works":["https://openalex.org/W1878150715","https://openalex.org/W2129206142","https://openalex.org/W2141030313","https://openalex.org/W2142623707","https://openalex.org/W2148505991","https://openalex.org/W2163320322","https://openalex.org/W4249744610","https://openalex.org/W6684376696"],"related_works":["https://openalex.org/W2348789026","https://openalex.org/W2158806364","https://openalex.org/W3206958763","https://openalex.org/W2378156195","https://openalex.org/W2159160885","https://openalex.org/W1601897362","https://openalex.org/W2493186661","https://openalex.org/W2151104578","https://openalex.org/W2167524701","https://openalex.org/W2904013093"],"abstract_inverted_index":{"In":[0],"this":[1],"paper,":[2],"a":[3],"novel":[4],"multi-baseline":[5,25],"phase":[6,19,34,71],"unwrapping":[7],"approach":[8],"is":[9,21,29,42,56],"proposed":[10,74],"based":[11],"on":[12],"maximum":[13,68],"likelihood":[14,69],"estimation":[15,61,72],"(MLE)":[16],"method.":[17],"Topography":[18],"gradient":[20,37],"acquired":[22],"by":[23,35],"fusing":[24],"InSAR":[26],"data.":[27],"It":[28],"convenient":[30],"to":[31,58],"obtain":[32],"unwrapped":[33,70],"using":[36],"integral.":[38],"Since":[39],"search":[40],"interval":[41],"critical":[43],"for":[44],"the":[45,60,65],"uniqueness":[46],"and":[47],"accuracy":[48],"of":[49,67],"solution,":[50],"low-precision":[51],"digital":[52],"elevation":[53],"model":[54],"(DEM)":[55],"imported":[57],"improve":[59],"interval.":[62],"Simulations":[63],"corroborate":[64],"validity":[66],"method":[73],"in":[75],"our":[76],"work.":[77]},"counts_by_year":[{"year":2023,"cited_by_count":1},{"year":2018,"cited_by_count":2},{"year":2016,"cited_by_count":1}],"updated_date":"2026-07-14T23:27:15.235271","created_date":"2025-10-10T00:00:00"}