{"id":"https://openalex.org/W2008974024","doi":"https://doi.org/10.1155/2007/17342","title":"Subspace-Based Localization and Inverse Scattering of Multiply Scattering Point Targets","display_name":"Subspace-Based Localization and Inverse Scattering of Multiply Scattering Point Targets","publication_year":2006,"publication_date":"2006-09-13","ids":{"openalex":"https://openalex.org/W2008974024","doi":"https://doi.org/10.1155/2007/17342","mag":"2008974024"},"language":"en","primary_location":{"id":"doi:10.1155/2007/17342","is_oa":true,"landing_page_url":"https://doi.org/10.1155/2007/17342","pdf_url":"https://asp-eurasipjournals.springeropen.com/counter/pdf/10.1155/2007/17342","source":{"id":"https://openalex.org/S35920007","display_name":"EURASIP Journal on Advances in Signal Processing","issn_l":"1687-6172","issn":["1687-6172","1687-6180"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319900","host_organization_name":"Springer Science+Business Media","host_organization_lineage":["https://openalex.org/P4310319900","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Science+Business Media","Springer Nature"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"EURASIP Journal on Advances in Signal Processing","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://asp-eurasipjournals.springeropen.com/counter/pdf/10.1155/2007/17342","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5067436333","display_name":"Edwin A. Marengo","orcid":"https://orcid.org/0000-0002-9929-3792"},"institutions":[{"id":"https://openalex.org/I12912129","display_name":"Northeastern University","ror":"https://ror.org/04t5xt781","country_code":"US","type":"education","lineage":["https://openalex.org/I12912129"]},{"id":"https://openalex.org/I29955533","display_name":"Center for Information Technology","ror":"https://ror.org/03jh5a977","country_code":"US","type":"facility","lineage":["https://openalex.org/I1299022934","https://openalex.org/I1299303238","https://openalex.org/I29955533"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"Edwin A. Marengo","raw_affiliation_strings":["Department of Electrical and Computer Engineering, Center for Subsurface Sensing and Imaging Systems, and Communications and Digital Signal Processing Center for Research and Graduate Studies, Northeastern University, Boston, MA, 02115, USA","Department of Electrical and Computer Engineering, Center for Subsurface Sensing and Imaging Systems, and Communications and Digital Signal Processing Center for Research and Graduate Studies, Nor "],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electrical and Computer Engineering, Center for Subsurface Sensing and Imaging Systems, and Communications and Digital Signal Processing Center for Research and Graduate Studies, Northeastern University, Boston, MA, 02115, USA","institution_ids":["https://openalex.org/I12912129"]},{"raw_affiliation_string":"Department of Electrical and Computer Engineering, Center for Subsurface Sensing and Imaging Systems, and Communications and Digital Signal Processing Center for Research and Graduate Studies, Nor ","institution_ids":["https://openalex.org/I29955533"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5015175588","display_name":"Fred K. Gruber","orcid":"https://orcid.org/0000-0002-4511-4517"},"institutions":[{"id":"https://openalex.org/I12912129","display_name":"Northeastern University","ror":"https://ror.org/04t5xt781","country_code":"US","type":"education","lineage":["https://openalex.org/I12912129"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Fred K. Gruber","raw_affiliation_strings":["Department of Electrical and Computer Engineering, Northeastern University, Boston, MA, 02115, USA","Department of Electrical and Computer Engineering, Northeastern University, Boston, MA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electrical and Computer Engineering, Northeastern University, Boston, MA, 02115, USA","institution_ids":["https://openalex.org/I12912129"]},{"raw_affiliation_string":"Department of Electrical and Computer Engineering, Northeastern University, Boston, MA","institution_ids":["https://openalex.org/I12912129"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5067436333"],"corresponding_institution_ids":["https://openalex.org/I12912129","https://openalex.org/I29955533"],"apc_list":{"value":1140,"currency":"GBP","value_usd":1398},"apc_paid":{"value":1140,"currency":"GBP","value_usd":1398},"fwci":7.0812,"has_fulltext":true,"cited_by_count":69,"citation_normalized_percentile":{"value":0.9732416,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":99},"biblio":{"volume":"2007","issue":"1","first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11739","display_name":"Microwave Imaging and Scattering Analysis","score":1.0,"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"}},"topics":[{"id":"https://openalex.org/T11739","display_name":"Microwave Imaging and Scattering Analysis","score":1.0,"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/T11609","display_name":"Geophysical Methods and Applications","score":0.9998000264167786,"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"}},{"id":"https://openalex.org/T11698","display_name":"Underwater Acoustics Research","score":0.9993000030517578,"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/scattering","display_name":"Scattering","score":0.7897236347198486},{"id":"https://openalex.org/keywords/subspace-topology","display_name":"Subspace topology","score":0.7016639709472656},{"id":"https://openalex.org/keywords/inverse-scattering-problem","display_name":"Inverse scattering problem","score":0.6880291104316711},{"id":"https://openalex.org/keywords/snapshot","display_name":"Snapshot (computer storage)","score":0.5953769683837891},{"id":"https://openalex.org/keywords/nonlinear-system","display_name":"Nonlinear system","score":0.5495301485061646},{"id":"https://openalex.org/keywords/inverse-problem","display_name":"Inverse problem","score":0.5318053960800171},{"id":"https://openalex.org/keywords/scattering-theory","display_name":"Scattering theory","score":0.5280345678329468},{"id":"https://openalex.org/keywords/signal-subspace","display_name":"Signal subspace","score":0.4860123097896576},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.46100422739982605},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.45618075132369995},{"id":"https://openalex.org/keywords/signal","display_name":"SIGNAL (programming language)","score":0.41960710287094116},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.3774806261062622},{"id":"https://openalex.org/keywords/mathematical-optimization","display_name":"Mathematical optimization","score":0.3757384717464447},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.364266574382782},{"id":"https://openalex.org/keywords/mathematical-analysis","display_name":"Mathematical analysis","score":0.35904037952423096},{"id":"https://openalex.org/keywords/optics","display_name":"Optics","score":0.34085771441459656},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.18584021925926208},{"id":"https://openalex.org/keywords/quantum-mechanics","display_name":"Quantum mechanics","score":0.1613195836544037},{"id":"https://openalex.org/keywords/noise","display_name":"Noise (video)","score":0.09101521968841553}],"concepts":[{"id":"https://openalex.org/C191486275","wikidata":"https://www.wikidata.org/wiki/Q210028","display_name":"Scattering","level":2,"score":0.7897236347198486},{"id":"https://openalex.org/C32834561","wikidata":"https://www.wikidata.org/wiki/Q660730","display_name":"Subspace topology","level":2,"score":0.7016639709472656},{"id":"https://openalex.org/C174558057","wikidata":"https://www.wikidata.org/wiki/Q11639409","display_name":"Inverse scattering problem","level":3,"score":0.6880291104316711},{"id":"https://openalex.org/C55282118","wikidata":"https://www.wikidata.org/wiki/Q252683","display_name":"Snapshot (computer storage)","level":2,"score":0.5953769683837891},{"id":"https://openalex.org/C158622935","wikidata":"https://www.wikidata.org/wiki/Q660848","display_name":"Nonlinear system","level":2,"score":0.5495301485061646},{"id":"https://openalex.org/C135252773","wikidata":"https://www.wikidata.org/wiki/Q1567213","display_name":"Inverse problem","level":2,"score":0.5318053960800171},{"id":"https://openalex.org/C67105901","wikidata":"https://www.wikidata.org/wiki/Q903737","display_name":"Scattering theory","level":3,"score":0.5280345678329468},{"id":"https://openalex.org/C2777121530","wikidata":"https://www.wikidata.org/wiki/Q7512739","display_name":"Signal subspace","level":4,"score":0.4860123097896576},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.46100422739982605},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.45618075132369995},{"id":"https://openalex.org/C2779843651","wikidata":"https://www.wikidata.org/wiki/Q7390335","display_name":"SIGNAL (programming language)","level":2,"score":0.41960710287094116},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.3774806261062622},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.3757384717464447},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.364266574382782},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.35904037952423096},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.34085771441459656},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.18584021925926208},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.1613195836544037},{"id":"https://openalex.org/C99498987","wikidata":"https://www.wikidata.org/wiki/Q2210247","display_name":"Noise (video)","level":3,"score":0.09101521968841553},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","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},{"id":"https://openalex.org/C115961682","wikidata":"https://www.wikidata.org/wiki/Q860623","display_name":"Image (mathematics)","level":2,"score":0.0}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.1155/2007/17342","is_oa":true,"landing_page_url":"https://doi.org/10.1155/2007/17342","pdf_url":"https://asp-eurasipjournals.springeropen.com/counter/pdf/10.1155/2007/17342","source":{"id":"https://openalex.org/S35920007","display_name":"EURASIP Journal on Advances in Signal Processing","issn_l":"1687-6172","issn":["1687-6172","1687-6180"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319900","host_organization_name":"Springer Science+Business Media","host_organization_lineage":["https://openalex.org/P4310319900","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Science+Business Media","Springer Nature"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"EURASIP Journal on Advances in Signal Processing","raw_type":"journal-article"},{"id":"pmh:oai:CiteSeerX.psu:10.1.1.130.9060","is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.130.9060","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"http://www.ece.neu.edu/~emarengo/pdf/S111086570717342X.pdf","raw_type":"text"},{"id":"pmh:oai:doaj.org/article:45955bc5b58547b1862eb59df3df2881","is_oa":true,"landing_page_url":"https://doaj.org/article/45955bc5b58547b1862eb59df3df2881","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":"EURASIP Journal on Advances in Signal Processing, Vol 2007 (2007)","raw_type":"article"}],"best_oa_location":{"id":"doi:10.1155/2007/17342","is_oa":true,"landing_page_url":"https://doi.org/10.1155/2007/17342","pdf_url":"https://asp-eurasipjournals.springeropen.com/counter/pdf/10.1155/2007/17342","source":{"id":"https://openalex.org/S35920007","display_name":"EURASIP Journal on Advances in Signal Processing","issn_l":"1687-6172","issn":["1687-6172","1687-6180"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319900","host_organization_name":"Springer Science+Business Media","host_organization_lineage":["https://openalex.org/P4310319900","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Science+Business Media","Springer Nature"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"EURASIP Journal on Advances in Signal Processing","raw_type":"journal-article"},"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G1523888516","display_name":null,"funder_award_id":"FA9550-","funder_id":"https://openalex.org/F4320338279","funder_display_name":"Air Force Office of Scientific Research"},{"id":"https://openalex.org/G227711591","display_name":null,"funder_award_id":"FA9550-06-01","funder_id":"https://openalex.org/F4320338279","funder_display_name":"Air Force Office of Scientific Research"},{"id":"https://openalex.org/G5809100787","display_name":null,"funder_award_id":"FA9550","funder_id":"https://openalex.org/F4320338279","funder_display_name":"Air Force Office of Scientific Research"},{"id":"https://openalex.org/G6656409171","display_name":"An Engineering Research Center for Subsurface Sensing and Imaging Systems - CenSSIS","funder_award_id":"9986821","funder_id":"https://openalex.org/F4320306076","funder_display_name":"National Science Foundation"},{"id":"https://openalex.org/G7090116110","display_name":null,"funder_award_id":"FA9550","funder_id":"https://openalex.org/F4320332467","funder_display_name":"U.S. Air Force"},{"id":"https://openalex.org/G8883577332","display_name":null,"funder_award_id":"EEC-9986821","funder_id":"https://openalex.org/F4320306076","funder_display_name":"National Science Foundation"}],"funders":[{"id":"https://openalex.org/F4320306076","display_name":"National Science Foundation","ror":"https://ror.org/021nxhr62"},{"id":"https://openalex.org/F4320332467","display_name":"U.S. Air Force","ror":"https://ror.org/006gmme17"},{"id":"https://openalex.org/F4320338279","display_name":"Air Force Office of Scientific Research","ror":"https://ror.org/011e9bt93"}],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2008974024.pdf","grobid_xml":"https://content.openalex.org/works/W2008974024.grobid-xml"},"referenced_works_count":76,"referenced_works":["https://openalex.org/W248028665","https://openalex.org/W250076511","https://openalex.org/W630428288","https://openalex.org/W1488435683","https://openalex.org/W1525535255","https://openalex.org/W1573293896","https://openalex.org/W1583499676","https://openalex.org/W1587572866","https://openalex.org/W1607823060","https://openalex.org/W1614996064","https://openalex.org/W1714811174","https://openalex.org/W1965392255","https://openalex.org/W1970784811","https://openalex.org/W1993349468","https://openalex.org/W1994237500","https://openalex.org/W2002703781","https://openalex.org/W2004566392","https://openalex.org/W2006103870","https://openalex.org/W2006120042","https://openalex.org/W2008860051","https://openalex.org/W2009548095","https://openalex.org/W2011301382","https://openalex.org/W2012910063","https://openalex.org/W2020814202","https://openalex.org/W2024772675","https://openalex.org/W2025835107","https://openalex.org/W2042577742","https://openalex.org/W2049007693","https://openalex.org/W2049954742","https://openalex.org/W2054658115","https://openalex.org/W2060520172","https://openalex.org/W2063125270","https://openalex.org/W2078966899","https://openalex.org/W2086710291","https://openalex.org/W2092595081","https://openalex.org/W2092856884","https://openalex.org/W2093361576","https://openalex.org/W2096710051","https://openalex.org/W2097670707","https://openalex.org/W2113200930","https://openalex.org/W2113484718","https://openalex.org/W2113638573","https://openalex.org/W2116337243","https://openalex.org/W2118133741","https://openalex.org/W2120306134","https://openalex.org/W2122535060","https://openalex.org/W2124041808","https://openalex.org/W2124164696","https://openalex.org/W2126500722","https://openalex.org/W2128508537","https://openalex.org/W2130509920","https://openalex.org/W2136274821","https://openalex.org/W2138966688","https://openalex.org/W2142331964","https://openalex.org/W2142635246","https://openalex.org/W2148723353","https://openalex.org/W2150238169","https://openalex.org/W2151211575","https://openalex.org/W2151283225","https://openalex.org/W2151951086","https://openalex.org/W2153911546","https://openalex.org/W2158162544","https://openalex.org/W2158507052","https://openalex.org/W2159248509","https://openalex.org/W2164097273","https://openalex.org/W2167178256","https://openalex.org/W2167550457","https://openalex.org/W2170852717","https://openalex.org/W2744275088","https://openalex.org/W2798333393","https://openalex.org/W3010956862","https://openalex.org/W3143835353","https://openalex.org/W4234206195","https://openalex.org/W4237093680","https://openalex.org/W4248676392","https://openalex.org/W4300589033"],"related_works":["https://openalex.org/W2379264914","https://openalex.org/W2153912708","https://openalex.org/W2118094278","https://openalex.org/W2639400695","https://openalex.org/W3126343058","https://openalex.org/W2949173582","https://openalex.org/W2089410207","https://openalex.org/W4300048032","https://openalex.org/W2367577754","https://openalex.org/W2387532542"],"abstract_inverted_index":{"The":[0,111],"nonlinear":[1,94],"inverse":[2,95],"scattering":[3,10,96,107],"problem":[4,97],"of":[5,14,17,69,82,92],"estimating":[6],"the":[7,64,80,83,90,93,99,109,117,123],"locations":[8],"and":[9,43,58,72,119],"strengths":[11],"or":[12],"reflectivities":[13,85],"a":[15,23],"number":[16,68],"small,":[18],"point-like":[19],"inhomogeneities":[20],"(targets)":[21],"to":[22,62],"known":[24],"background":[25],"medium":[26],"from":[27],"single-snapshot":[28],"active":[29],"wave":[30],"sensor":[31],"array":[32],"data":[33],"is":[34,50,60,86,104],"investigated":[35],"in":[36,54,67,73,122],"connection":[37],"with":[38],"time-reversal":[39,65],"multiple":[40,106],"signal":[41,46],"classification":[42],"an":[44],"alternative":[45],"subspace":[47],"method":[48],"which":[49,59,88],"based":[51],"on":[52],"search":[53],"high-dimensional":[55],"parameter":[56],"space":[57],"found":[61],"outperform":[63],"approach":[66],"localizable":[70],"targets":[71],"estimation":[74],"variance.":[75],"A":[76],"noniterative":[77],"formula":[78],"for":[79,98],"calculation":[81],"target":[84],"derived":[87],"completes":[89],"solution":[91],"general":[100],"case":[101],"when":[102],"there":[103],"significant":[105],"between":[108],"targets.":[110],"paper":[112],"includes":[113],"computer":[114],"simulations":[115],"illustrating":[116],"theory":[118],"methods":[120],"discussed":[121],"paper.":[124]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":1},{"year":2023,"cited_by_count":1},{"year":2022,"cited_by_count":1},{"year":2020,"cited_by_count":1},{"year":2018,"cited_by_count":5},{"year":2017,"cited_by_count":5},{"year":2015,"cited_by_count":1},{"year":2014,"cited_by_count":4},{"year":2013,"cited_by_count":2},{"year":2012,"cited_by_count":8}],"updated_date":"2026-06-19T15:47:20.252518","created_date":"2025-10-10T00:00:00"}