{"id":"https://openalex.org/W1963399593","doi":"https://doi.org/10.1186/s13634-015-0257-3","title":"Enhancing resolution properties of array antennas via field extrapolation: application to MIMO systems","display_name":"Enhancing resolution properties of array antennas via field extrapolation: application to MIMO systems","publication_year":2015,"publication_date":"2015-08-06","ids":{"openalex":"https://openalex.org/W1963399593","doi":"https://doi.org/10.1186/s13634-015-0257-3","mag":"1963399593"},"language":"en","primary_location":{"id":"doi:10.1186/s13634-015-0257-3","is_oa":true,"landing_page_url":"https://doi.org/10.1186/s13634-015-0257-3","pdf_url":"https://asp-eurasipjournals.springeropen.com/counter/pdf/10.1186/s13634-015-0257-3","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/10.1186/s13634-015-0257-3","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5017988071","display_name":"R. Reggiannini","orcid":null},"institutions":[{"id":"https://openalex.org/I108290504","display_name":"University of Pisa","ror":"https://ror.org/03ad39j10","country_code":"IT","type":"education","lineage":["https://openalex.org/I108290504"]}],"countries":["IT"],"is_corresponding":true,"raw_author_name":"Ruggero Reggiannini","raw_affiliation_strings":["Department of Information Engineering, University of Pisa, Via G. Caruso 16, 56122, Pisa, Italy","Department of Information Engineering, University of Pisa, Pisa, Italy"],"affiliations":[{"raw_affiliation_string":"Department of Information Engineering, University of Pisa, Via G. Caruso 16, 56122, Pisa, Italy","institution_ids":["https://openalex.org/I108290504"]},{"raw_affiliation_string":"Department of Information Engineering, University of Pisa, Pisa, Italy","institution_ids":["https://openalex.org/I108290504"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5017988071"],"corresponding_institution_ids":["https://openalex.org/I108290504"],"apc_list":{"value":1140,"currency":"GBP","value_usd":1398},"apc_paid":{"value":1140,"currency":"GBP","value_usd":1398},"fwci":0.0,"has_fulltext":true,"cited_by_count":0,"citation_normalized_percentile":{"value":0.20712595,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"2015","issue":"1","first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11946","display_name":"Antenna Design and Optimization","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/T11946","display_name":"Antenna Design and Optimization","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/T10931","display_name":"Direction-of-Arrival Estimation Techniques","score":0.9997000098228455,"subfield":{"id":"https://openalex.org/subfields/1711","display_name":"Signal Processing"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12450","display_name":"Radio Astronomy Observations and Technology","score":0.9987999796867371,"subfield":{"id":"https://openalex.org/subfields/3103","display_name":"Astronomy and Astrophysics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/mimo","display_name":"MIMO","score":0.6620033383369446},{"id":"https://openalex.org/keywords/circular-buffer","display_name":"Circular buffer","score":0.6093212366104126},{"id":"https://openalex.org/keywords/array-gain","display_name":"Array gain","score":0.5968276858329773},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5952113270759583},{"id":"https://openalex.org/keywords/sensor-array","display_name":"Sensor array","score":0.5879409909248352},{"id":"https://openalex.org/keywords/bandwidth","display_name":"Bandwidth (computing)","score":0.5329604744911194},{"id":"https://openalex.org/keywords/antenna-array","display_name":"Antenna array","score":0.526961624622345},{"id":"https://openalex.org/keywords/array-processing","display_name":"Array processing","score":0.5253474116325378},{"id":"https://openalex.org/keywords/radar","display_name":"Radar","score":0.521374523639679},{"id":"https://openalex.org/keywords/spatial-multiplexing","display_name":"Spatial multiplexing","score":0.4990832805633545},{"id":"https://openalex.org/keywords/sonar","display_name":"Sonar","score":0.47090601921081543},{"id":"https://openalex.org/keywords/angular-resolution","display_name":"Angular resolution (graph drawing)","score":0.42928123474121094},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.4191294312477112},{"id":"https://openalex.org/keywords/acoustics","display_name":"Acoustics","score":0.3956720232963562},{"id":"https://openalex.org/keywords/signal-processing","display_name":"Signal processing","score":0.3626367449760437},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.314370334148407},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.27969223260879517},{"id":"https://openalex.org/keywords/antenna","display_name":"Antenna (radio)","score":0.261646568775177},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.19866713881492615},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.18393346667289734},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.13680300116539001}],"concepts":[{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.6620033383369446},{"id":"https://openalex.org/C85686653","wikidata":"https://www.wikidata.org/wiki/Q1224994","display_name":"Circular buffer","level":2,"score":0.6093212366104126},{"id":"https://openalex.org/C136664719","wikidata":"https://www.wikidata.org/wiki/Q4795880","display_name":"Array gain","level":4,"score":0.5968276858329773},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5952113270759583},{"id":"https://openalex.org/C66251956","wikidata":"https://www.wikidata.org/wiki/Q7451086","display_name":"Sensor array","level":2,"score":0.5879409909248352},{"id":"https://openalex.org/C2776257435","wikidata":"https://www.wikidata.org/wiki/Q1576430","display_name":"Bandwidth (computing)","level":2,"score":0.5329604744911194},{"id":"https://openalex.org/C62191587","wikidata":"https://www.wikidata.org/wiki/Q4771249","display_name":"Antenna array","level":3,"score":0.526961624622345},{"id":"https://openalex.org/C2778545087","wikidata":"https://www.wikidata.org/wiki/Q4795883","display_name":"Array processing","level":4,"score":0.5253474116325378},{"id":"https://openalex.org/C554190296","wikidata":"https://www.wikidata.org/wiki/Q47528","display_name":"Radar","level":2,"score":0.521374523639679},{"id":"https://openalex.org/C85884896","wikidata":"https://www.wikidata.org/wiki/Q7574075","display_name":"Spatial multiplexing","level":4,"score":0.4990832805633545},{"id":"https://openalex.org/C555745239","wikidata":"https://www.wikidata.org/wiki/Q133220","display_name":"Sonar","level":2,"score":0.47090601921081543},{"id":"https://openalex.org/C133848361","wikidata":"https://www.wikidata.org/wiki/Q4764027","display_name":"Angular resolution (graph drawing)","level":2,"score":0.42928123474121094},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.4191294312477112},{"id":"https://openalex.org/C24890656","wikidata":"https://www.wikidata.org/wiki/Q82811","display_name":"Acoustics","level":1,"score":0.3956720232963562},{"id":"https://openalex.org/C104267543","wikidata":"https://www.wikidata.org/wiki/Q208163","display_name":"Signal processing","level":3,"score":0.3626367449760437},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.314370334148407},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.27969223260879517},{"id":"https://openalex.org/C21822782","wikidata":"https://www.wikidata.org/wiki/Q131214","display_name":"Antenna (radio)","level":2,"score":0.261646568775177},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.19866713881492615},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.18393346667289734},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.13680300116539001},{"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/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.0},{"id":"https://openalex.org/C119857082","wikidata":"https://www.wikidata.org/wiki/Q2539","display_name":"Machine learning","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1186/s13634-015-0257-3","is_oa":true,"landing_page_url":"https://doi.org/10.1186/s13634-015-0257-3","pdf_url":"https://asp-eurasipjournals.springeropen.com/counter/pdf/10.1186/s13634-015-0257-3","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:arpi.unipi.it:11568/755155","is_oa":true,"landing_page_url":"http://hdl.handle.net/11568/755155","pdf_url":null,"source":{"id":"https://openalex.org/S4377196265","display_name":"CINECA IRIS Institutial research information system (University of Pisa)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I108290504","host_organization_name":"University of Pisa","host_organization_lineage":["https://openalex.org/I108290504"],"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":null,"raw_type":"info:eu-repo/semantics/article"}],"best_oa_location":{"id":"doi:10.1186/s13634-015-0257-3","is_oa":true,"landing_page_url":"https://doi.org/10.1186/s13634-015-0257-3","pdf_url":"https://asp-eurasipjournals.springeropen.com/counter/pdf/10.1186/s13634-015-0257-3","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":[],"funders":[],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W1963399593.pdf","grobid_xml":"https://content.openalex.org/works/W1963399593.grobid-xml"},"referenced_works_count":25,"referenced_works":["https://openalex.org/W653761051","https://openalex.org/W1521564387","https://openalex.org/W1982061533","https://openalex.org/W1997834106","https://openalex.org/W2007715285","https://openalex.org/W2036299253","https://openalex.org/W2037576174","https://openalex.org/W2040062117","https://openalex.org/W2044000385","https://openalex.org/W2084912072","https://openalex.org/W2087940086","https://openalex.org/W2093225945","https://openalex.org/W2108943734","https://openalex.org/W2125967891","https://openalex.org/W2132818688","https://openalex.org/W2133475491","https://openalex.org/W2135244016","https://openalex.org/W2139563388","https://openalex.org/W2141632287","https://openalex.org/W2146318236","https://openalex.org/W2160426217","https://openalex.org/W2170043593","https://openalex.org/W2952350176","https://openalex.org/W3086411875","https://openalex.org/W3148168866"],"related_works":["https://openalex.org/W2090967414","https://openalex.org/W4307114811","https://openalex.org/W256433769","https://openalex.org/W2393707441","https://openalex.org/W4286587386","https://openalex.org/W3183857160","https://openalex.org/W2048586959","https://openalex.org/W4206635063","https://openalex.org/W2059815969","https://openalex.org/W2349933779"],"abstract_inverted_index":{"This":[0,91],"paper":[1],"is":[2,111],"concerned":[3],"with":[4,127],"spatial":[5,32],"properties":[6],"of":[7,10,29,60,76,79,98,103,115,118],"linear":[8,140],"arrays":[9,155],"antennas":[11],"spaced":[12],"less":[13],"than":[14,132],"half":[15],"wavelength.":[16],"Possible":[17],"applications":[18],"are":[19,143],"in":[20,35,42,101,157],"multiple-input":[21],"multiple-output":[22],"(MIMO)":[23],"wireless":[24],"links":[25],"for":[26],"the":[27,31,61,68,74,77,84,89,96,99,124,150,184,189],"purpose":[28],"increasing":[30],"multiplexing":[33],"gain":[34],"a":[36,53,116,136],"scattering":[37],"environment,":[38],"as":[39,41,46,167,181],"well":[40],"other":[43],"areas":[44],"such":[45,166],"sonar":[47],"and":[48,171,174,178],"radar.":[49],"With":[50],"reference":[51],"to":[52,94,121,146,154,169,175,182],"receiving":[54],"array,":[55],"we":[56,160],"show":[57],"that":[58,133],"knowledge":[59],"received":[62],"field":[63,85],"can":[64],"be":[65],"extrapolated":[66],"beyond":[67],"actual":[69],"array":[70,100,176,190],"size":[71],"by":[72,135],"exploiting":[73],"finiteness":[75],"interval":[78],"real":[80],"directions":[81],"from":[82],"which":[83],"components":[86],"impinge":[87],"on":[88],"array.":[90,141],"property":[92],"permits":[93],"increase":[95],"performance":[97],"terms":[102],"angular":[104,129],"resolution.":[105],"A":[106],"simple":[107],"signal":[108],"processing":[109],"technique":[110],"proposed":[112],"allowing":[113],"formation":[114],"set":[117],"beams":[119],"capable":[120],"cover":[122],"uniformly":[123],"entire":[125],"horizon":[126],"an":[128],"resolution":[130],"better":[131],"achievable":[134],"classical":[137],"uniform-weighing":[138],"half-wavelength-spaced":[139],"Results":[142],"also":[144],"applicable":[145],"active":[147],"arrays.":[148],"As":[149],"above":[151],"approach":[152],"leads":[153],"operating":[156],"super-directive":[158],"regime,":[159],"discuss":[161],"all":[162],"related":[163],"critical":[164],"aspects,":[165],"sensitivity":[168],"external":[170],"internal":[172],"noises":[173],"imperfections,":[177],"bandwidth,":[179],"so":[180],"identify":[183],"basic":[185],"design":[186],"criteria":[187],"ensuring":[188],"feasibility.":[191]},"counts_by_year":[],"updated_date":"2026-03-16T09:10:04.655348","created_date":"2025-10-10T00:00:00"}