{"id":"https://openalex.org/W1483017136","doi":"https://doi.org/10.23919/ecc.2009.7074442","title":"An iterative learning control approach combined with a multivariable RF controller for the Free Electron Laser FLASH","display_name":"An iterative learning control approach combined with a multivariable RF controller for the Free Electron Laser FLASH","publication_year":2009,"publication_date":"2009-08-01","ids":{"openalex":"https://openalex.org/W1483017136","doi":"https://doi.org/10.23919/ecc.2009.7074442","mag":"1483017136"},"language":"en","primary_location":{"id":"doi:10.23919/ecc.2009.7074442","is_oa":false,"landing_page_url":"https://doi.org/10.23919/ecc.2009.7074442","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2009 European Control Conference (ECC)","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/A5032958927","display_name":"Hauke Langkowski","orcid":null},"institutions":[{"id":"https://openalex.org/I884043246","display_name":"Hamburg University of Technology","ror":"https://ror.org/04bs1pb34","country_code":"DE","type":"education","lineage":["https://openalex.org/I884043246"]},{"id":"https://openalex.org/I159176309","display_name":"Universit\u00e4t Hamburg","ror":"https://ror.org/00g30e956","country_code":"DE","type":"education","lineage":["https://openalex.org/I159176309"]}],"countries":["DE"],"is_corresponding":true,"raw_author_name":"H. Langkowski","raw_affiliation_strings":["Institute of Control Systems, Hamburg University of Technology, Hamburg, Germany","Institute of Control Systems, Hamburg University of Technology, 21071, Germany"],"affiliations":[{"raw_affiliation_string":"Institute of Control Systems, Hamburg University of Technology, Hamburg, Germany","institution_ids":["https://openalex.org/I159176309","https://openalex.org/I884043246"]},{"raw_affiliation_string":"Institute of Control Systems, Hamburg University of Technology, 21071, Germany","institution_ids":["https://openalex.org/I159176309","https://openalex.org/I884043246"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5045584371","display_name":"Crystian Schmidt","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"C. Schmidt","raw_affiliation_strings":["DESY Hamburg, Hamburg, Germany","DESY Hamburg, Notkestrae 85, 22607, Germany"],"affiliations":[{"raw_affiliation_string":"DESY Hamburg, Hamburg, Germany","institution_ids":[]},{"raw_affiliation_string":"DESY Hamburg, Notkestrae 85, 22607, Germany","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5004305934","display_name":"Gerwald Lichtenberg","orcid":"https://orcid.org/0000-0001-6032-0733"},"institutions":[{"id":"https://openalex.org/I159176309","display_name":"Universit\u00e4t Hamburg","ror":"https://ror.org/00g30e956","country_code":"DE","type":"education","lineage":["https://openalex.org/I159176309"]},{"id":"https://openalex.org/I884043246","display_name":"Hamburg University of Technology","ror":"https://ror.org/04bs1pb34","country_code":"DE","type":"education","lineage":["https://openalex.org/I884043246"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"G. Lichtenberg","raw_affiliation_strings":["Institute of Control Systems, Hamburg University of Technology, Hamburg, Germany","Institute of Control Systems, Hamburg University of Technology, 21071, Germany"],"affiliations":[{"raw_affiliation_string":"Institute of Control Systems, Hamburg University of Technology, Hamburg, Germany","institution_ids":["https://openalex.org/I159176309","https://openalex.org/I884043246"]},{"raw_affiliation_string":"Institute of Control Systems, Hamburg University of Technology, 21071, Germany","institution_ids":["https://openalex.org/I159176309","https://openalex.org/I884043246"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5022335223","display_name":"Herbert Werner","orcid":"https://orcid.org/0000-0003-3456-5539"},"institutions":[{"id":"https://openalex.org/I159176309","display_name":"Universit\u00e4t Hamburg","ror":"https://ror.org/00g30e956","country_code":"DE","type":"education","lineage":["https://openalex.org/I159176309"]},{"id":"https://openalex.org/I884043246","display_name":"Hamburg University of Technology","ror":"https://ror.org/04bs1pb34","country_code":"DE","type":"education","lineage":["https://openalex.org/I884043246"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"H. Werner","raw_affiliation_strings":["Institute of Control Systems, Hamburg University of Technology, Hamburg, Germany","Institute of Control Systems, Hamburg University of Technology, 21071, Germany"],"affiliations":[{"raw_affiliation_string":"Institute of Control Systems, Hamburg University of Technology, Hamburg, Germany","institution_ids":["https://openalex.org/I159176309","https://openalex.org/I884043246"]},{"raw_affiliation_string":"Institute of Control Systems, Hamburg University of Technology, 21071, Germany","institution_ids":["https://openalex.org/I159176309","https://openalex.org/I884043246"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5032958927"],"corresponding_institution_ids":["https://openalex.org/I159176309","https://openalex.org/I884043246"],"apc_list":null,"apc_paid":null,"fwci":0.3048,"has_fulltext":false,"cited_by_count":2,"citation_normalized_percentile":{"value":0.59810614,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":94},"biblio":{"volume":null,"issue":null,"first_page":"442","last_page":"447"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10559","display_name":"Particle Accelerators and Free-Electron Lasers","score":0.9979000091552734,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic 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/T10559","display_name":"Particle Accelerators and Free-Electron Lasers","score":0.9979000091552734,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic 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/T12760","display_name":"Laser Design and Applications","score":0.9950000047683716,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic 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/T11367","display_name":"Particle accelerators and beam dynamics","score":0.9886999726295471,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/desy","display_name":"DESY","score":0.925594687461853},{"id":"https://openalex.org/keywords/iterative-learning-control","display_name":"Iterative learning control","score":0.7942406535148621},{"id":"https://openalex.org/keywords/controller","display_name":"Controller (irrigation)","score":0.6871711611747742},{"id":"https://openalex.org/keywords/flash","display_name":"Flash (photography)","score":0.6076045036315918},{"id":"https://openalex.org/keywords/multivariable-calculus","display_name":"Multivariable calculus","score":0.5972996354103088},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5641247630119324},{"id":"https://openalex.org/keywords/control-theory","display_name":"Control theory (sociology)","score":0.48189693689346313},{"id":"https://openalex.org/keywords/control-system","display_name":"Control system","score":0.452301561832428},{"id":"https://openalex.org/keywords/control-engineering","display_name":"Control engineering","score":0.4417094588279724},{"id":"https://openalex.org/keywords/radio-frequency","display_name":"Radio frequency","score":0.4399757385253906},{"id":"https://openalex.org/keywords/field-programmable-gate-array","display_name":"Field-programmable gate array","score":0.4380587339401245},{"id":"https://openalex.org/keywords/computer-hardware","display_name":"Computer hardware","score":0.2540995478630066},{"id":"https://openalex.org/keywords/control","display_name":"Control (management)","score":0.2188422977924347},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.19320759177207947},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.18742415308952332},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.14529716968536377},{"id":"https://openalex.org/keywords/electrical-engineering","display_name":"Electrical engineering","score":0.1359875500202179},{"id":"https://openalex.org/keywords/particle-physics","display_name":"Particle physics","score":0.07906776666641235}],"concepts":[{"id":"https://openalex.org/C2777240086","wikidata":"https://www.wikidata.org/wiki/Q311801","display_name":"DESY","level":2,"score":0.925594687461853},{"id":"https://openalex.org/C117619785","wikidata":"https://www.wikidata.org/wiki/Q6094414","display_name":"Iterative learning control","level":3,"score":0.7942406535148621},{"id":"https://openalex.org/C203479927","wikidata":"https://www.wikidata.org/wiki/Q5165939","display_name":"Controller (irrigation)","level":2,"score":0.6871711611747742},{"id":"https://openalex.org/C2777526259","wikidata":"https://www.wikidata.org/wiki/Q221836","display_name":"Flash (photography)","level":2,"score":0.6076045036315918},{"id":"https://openalex.org/C117312493","wikidata":"https://www.wikidata.org/wiki/Q2035437","display_name":"Multivariable calculus","level":2,"score":0.5972996354103088},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5641247630119324},{"id":"https://openalex.org/C47446073","wikidata":"https://www.wikidata.org/wiki/Q5165890","display_name":"Control theory (sociology)","level":3,"score":0.48189693689346313},{"id":"https://openalex.org/C17500928","wikidata":"https://www.wikidata.org/wiki/Q959968","display_name":"Control system","level":2,"score":0.452301561832428},{"id":"https://openalex.org/C133731056","wikidata":"https://www.wikidata.org/wiki/Q4917288","display_name":"Control engineering","level":1,"score":0.4417094588279724},{"id":"https://openalex.org/C74064498","wikidata":"https://www.wikidata.org/wiki/Q3396184","display_name":"Radio frequency","level":2,"score":0.4399757385253906},{"id":"https://openalex.org/C42935608","wikidata":"https://www.wikidata.org/wiki/Q190411","display_name":"Field-programmable gate array","level":2,"score":0.4380587339401245},{"id":"https://openalex.org/C9390403","wikidata":"https://www.wikidata.org/wiki/Q3966","display_name":"Computer hardware","level":1,"score":0.2540995478630066},{"id":"https://openalex.org/C2775924081","wikidata":"https://www.wikidata.org/wiki/Q55608371","display_name":"Control (management)","level":2,"score":0.2188422977924347},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.19320759177207947},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.18742415308952332},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.14529716968536377},{"id":"https://openalex.org/C119599485","wikidata":"https://www.wikidata.org/wiki/Q43035","display_name":"Electrical engineering","level":1,"score":0.1359875500202179},{"id":"https://openalex.org/C109214941","wikidata":"https://www.wikidata.org/wiki/Q18334","display_name":"Particle physics","level":1,"score":0.07906776666641235},{"id":"https://openalex.org/C6557445","wikidata":"https://www.wikidata.org/wiki/Q173113","display_name":"Agronomy","level":1,"score":0.0},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.0},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.23919/ecc.2009.7074442","is_oa":false,"landing_page_url":"https://doi.org/10.23919/ecc.2009.7074442","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2009 European Control Conference (ECC)","raw_type":"proceedings-article"},{"id":"pmh:oai:tore.tuhh.de:11420/14834","is_oa":false,"landing_page_url":"http://hdl.handle.net/11420/14834","pdf_url":null,"source":{"id":"https://openalex.org/S4306401751","display_name":"tub.dok (Hamburg University of Technology)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I884043246","host_organization_name":"Hamburg University of Technology","host_organization_lineage":["https://openalex.org/I884043246"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Conference Paper"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Affordable and clean energy","score":0.6100000143051147,"id":"https://metadata.un.org/sdg/7"}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W4213327330","https://openalex.org/W2030471867","https://openalex.org/W4205581644","https://openalex.org/W2567704011","https://openalex.org/W4238914235","https://openalex.org/W1807258063","https://openalex.org/W4392520314","https://openalex.org/W2150703641","https://openalex.org/W3135639752","https://openalex.org/W2557734659"],"abstract_inverted_index":{"Controlling":[0],"large":[1],"scale":[2],"radio":[3],"frequency":[4],"fields":[5],"in":[6],"a":[7,12,59],"superconducting":[8],"linear":[9],"accelerator":[10],"to":[11],"certain":[13],"accuracy":[14],"demands":[15],"high":[16],"requirements":[17],"of":[18,29,46],"the":[19,27,35,71,77],"control":[20,32,56,74],"system.":[21],"The":[22],"pulsed":[23],"operation":[24],"mode":[25],"allows":[26],"application":[28,45],"iterative":[30,48],"learning":[31,49],"algorithms":[33],"beside":[34],"real":[36],"time":[37],"feedback":[38],"controller.":[39,65],"This":[40],"paper":[41],"presents":[42],"design":[43],"and":[44],"an":[47,54],"controller":[50],"which":[51],"operates":[52],"on":[53],"underlying":[55],"loop":[57],"with":[58],"low-order":[60],"H":[61],"<sub":[62],"xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"":[63],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">\u221e</sub>":[64],"Measurement":[66],"results":[67],"are":[68],"given":[69],"from":[70],"FPGA":[72],"based":[73],"system":[75],"at":[76,80],"FLASH":[78],"facility":[79],"DESY.":[81]},"counts_by_year":[{"year":2019,"cited_by_count":1}],"updated_date":"2026-04-05T17:49:38.594831","created_date":"2025-10-10T00:00:00"}
