{"id":"https://openalex.org/W1591820253","doi":"https://doi.org/10.1109/cdc.2003.1272657","title":"Real-time control of a segmented telescope test-bed","display_name":"Real-time control of a segmented telescope test-bed","publication_year":2004,"publication_date":"2004-07-08","ids":{"openalex":"https://openalex.org/W1591820253","doi":"https://doi.org/10.1109/cdc.2003.1272657","mag":"1591820253"},"language":"en","primary_location":{"id":"doi:10.1109/cdc.2003.1272657","is_oa":false,"landing_page_url":"https://doi.org/10.1109/cdc.2003.1272657","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"42nd IEEE International Conference on Decision and Control (IEEE Cat. No.03CH37475)","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/A5101656639","display_name":"Ali Abdullah","orcid":"https://orcid.org/0000-0002-5843-8836"},"institutions":[{"id":"https://openalex.org/I1174212","display_name":"University of Southern California","ror":"https://ror.org/03taz7m60","country_code":"US","type":"education","lineage":["https://openalex.org/I1174212"]},{"id":"https://openalex.org/I4210116219","display_name":"Engineering Systems (United States)","ror":"https://ror.org/02qg60849","country_code":"US","type":"company","lineage":["https://openalex.org/I4210116219"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"A.A. Abdullah","raw_affiliation_strings":["Department of Electrical Engineering-Systems, University of Southern California, Los Angeles, CA, USA","Dept. of Electr. Eng.-Syst., Univ. of Southern California, Los Angeles, CA, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electrical Engineering-Systems, University of Southern California, Los Angeles, CA, USA","institution_ids":["https://openalex.org/I1174212","https://openalex.org/I4210116219"]},{"raw_affiliation_string":"Dept. of Electr. Eng.-Syst., Univ. of Southern California, Los Angeles, CA, USA","institution_ids":["https://openalex.org/I1174212"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5004938962","display_name":"P\u00e9tros Ioannou","orcid":"https://orcid.org/0000-0001-6981-0704"},"institutions":[{"id":"https://openalex.org/I1174212","display_name":"University of Southern California","ror":"https://ror.org/03taz7m60","country_code":"US","type":"education","lineage":["https://openalex.org/I1174212"]},{"id":"https://openalex.org/I4210116219","display_name":"Engineering Systems (United States)","ror":"https://ror.org/02qg60849","country_code":"US","type":"company","lineage":["https://openalex.org/I4210116219"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"P.A. Ioannou","raw_affiliation_strings":["Department of Electrical Engineering-Systems, University of Southern California, Los Angeles, CA, USA","Dept. of Electr. Eng.-Syst., Univ. of Southern California, Los Angeles, CA, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electrical Engineering-Systems, University of Southern California, Los Angeles, CA, USA","institution_ids":["https://openalex.org/I1174212","https://openalex.org/I4210116219"]},{"raw_affiliation_string":"Dept. of Electr. Eng.-Syst., Univ. of Southern California, Los Angeles, CA, USA","institution_ids":["https://openalex.org/I1174212"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.2347,"has_fulltext":false,"cited_by_count":4,"citation_normalized_percentile":{"value":0.51453534,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":96},"biblio":{"volume":"1","issue":null,"first_page":"762","last_page":"767"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11484","display_name":"Adaptive optics and wavefront sensing","score":0.9969000220298767,"subfield":{"id":"https://openalex.org/subfields/3107","display_name":"Atomic and Molecular Physics, and Optics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T11484","display_name":"Adaptive optics and wavefront sensing","score":0.9969000220298767,"subfield":{"id":"https://openalex.org/subfields/3107","display_name":"Atomic and Molecular Physics, and Optics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10791","display_name":"Advanced Control Systems Optimization","score":0.9905999898910522,"subfield":{"id":"https://openalex.org/subfields/2207","display_name":"Control and Systems 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/T12917","display_name":"Astronomy and Astrophysical Research","score":0.9891999959945679,"subfield":{"id":"https://openalex.org/subfields/3105","display_name":"Instrumentation"},"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/controller","display_name":"Controller (irrigation)","score":0.7240630984306335},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.69070965051651},{"id":"https://openalex.org/keywords/control-theory","display_name":"Control theory (sociology)","score":0.6104978919029236},{"id":"https://openalex.org/keywords/computational-complexity-theory","display_name":"Computational complexity theory","score":0.5630687475204468},{"id":"https://openalex.org/keywords/computation","display_name":"Computation","score":0.5392543077468872},{"id":"https://openalex.org/keywords/decentralised-system","display_name":"Decentralised system","score":0.4415787160396576},{"id":"https://openalex.org/keywords/control-engineering","display_name":"Control engineering","score":0.43826743960380554},{"id":"https://openalex.org/keywords/control","display_name":"Control (management)","score":0.34325382113456726},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.15897342562675476},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.12190315127372742},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.10767439007759094}],"concepts":[{"id":"https://openalex.org/C203479927","wikidata":"https://www.wikidata.org/wiki/Q5165939","display_name":"Controller (irrigation)","level":2,"score":0.7240630984306335},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.69070965051651},{"id":"https://openalex.org/C47446073","wikidata":"https://www.wikidata.org/wiki/Q5165890","display_name":"Control theory (sociology)","level":3,"score":0.6104978919029236},{"id":"https://openalex.org/C179799912","wikidata":"https://www.wikidata.org/wiki/Q205084","display_name":"Computational complexity theory","level":2,"score":0.5630687475204468},{"id":"https://openalex.org/C45374587","wikidata":"https://www.wikidata.org/wiki/Q12525525","display_name":"Computation","level":2,"score":0.5392543077468872},{"id":"https://openalex.org/C205875254","wikidata":"https://www.wikidata.org/wiki/Q17156857","display_name":"Decentralised system","level":3,"score":0.4415787160396576},{"id":"https://openalex.org/C133731056","wikidata":"https://www.wikidata.org/wiki/Q4917288","display_name":"Control engineering","level":1,"score":0.43826743960380554},{"id":"https://openalex.org/C2775924081","wikidata":"https://www.wikidata.org/wiki/Q55608371","display_name":"Control (management)","level":2,"score":0.34325382113456726},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.15897342562675476},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.12190315127372742},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.10767439007759094},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0},{"id":"https://openalex.org/C6557445","wikidata":"https://www.wikidata.org/wiki/Q173113","display_name":"Agronomy","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/cdc.2003.1272657","is_oa":false,"landing_page_url":"https://doi.org/10.1109/cdc.2003.1272657","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"42nd IEEE International Conference on Decision and Control (IEEE Cat. No.03CH37475)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[{"id":"https://openalex.org/F4320306101","display_name":"National Aeronautics and Space Administration","ror":"https://ror.org/027ka1x80"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":7,"referenced_works":["https://openalex.org/W1580992231","https://openalex.org/W2037661749","https://openalex.org/W2117964155","https://openalex.org/W2128020199","https://openalex.org/W2155070228","https://openalex.org/W2171472775","https://openalex.org/W2171884062"],"related_works":["https://openalex.org/W2046435967","https://openalex.org/W4231775656","https://openalex.org/W2383646825","https://openalex.org/W2371018915","https://openalex.org/W2354191502","https://openalex.org/W1972225038","https://openalex.org/W2000675896","https://openalex.org/W279168962","https://openalex.org/W2070504832","https://openalex.org/W2068163372"],"abstract_inverted_index":{"The":[0,20,124,140,158],"control":[1,85,89],"of":[2,17,50,55,83,164],"large":[3,71],"segmented":[4,72],"telescopes":[5],"is":[6,74],"a":[7,43,47,70,97,106,116],"challenging":[8],"one":[9],"due":[10],"to":[11,25,76],"the":[12,18,53,58,78,135,154,175],"complexity":[13],"and":[14,33,80,115,131,137,146,167,170],"high":[15,21,26],"order":[16,22,27],"system.":[19],"dynamics":[23],"lead":[24],"controllers":[28],"that":[29,66],"require":[30],"more":[31,128],"memory":[32,129,144,165],"faster":[34],"computations":[35],"for":[36,46,93],"implementation.":[37,94],"While":[38],"this":[39],"may":[40],"not":[41],"pose":[42],"serious":[44],"problem":[45],"small":[48],"number":[49,54],"segments,":[51],"as":[52],"segments":[56],"increases":[57],"computational":[59,81,132,147,168],"requirements":[60,82],"are":[61],"becoming":[62],"enormous.":[63],"A":[64],"test-bed":[65],"simulates":[67],"in":[68],"real-time":[69],"telescope":[73],"used":[75],"test":[77],"performance":[79,173],"several":[84],"designs.":[86],"Three":[87],"decentralized":[88,98,107,117],"designs":[90],"were":[91],"selected":[92],"These":[95],"include":[96],"state":[99],"feedback":[100,109,121],"proportional":[101,110],"plus":[102,111],"integral":[103,112],"(DSFPI)":[104],"controller,":[105,114],"output":[108,120],"(DOPFI)":[113],"direct":[118],"adaptive":[119],"(DDAOF)":[122],"controller.":[123],"DSFPI":[125],"controller":[126],"requires":[127,142,160],"space":[130,145,166],"power":[133],"than":[134,153,174],"DOFPI":[136,141],"DDAOF":[138,159],"controllers.":[139,157,178],"less":[143],"operations":[148,169],"but":[149],"it":[150],"performs":[151],"worst":[152],"other":[155,176],"two":[156,177],"an":[161],"acceptable":[162],"amount":[163],"has":[171],"better":[172]},"counts_by_year":[{"year":2024,"cited_by_count":1},{"year":2015,"cited_by_count":2}],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2025-10-10T00:00:00"}