{"id":"https://openalex.org/W2989851670","doi":"https://doi.org/10.1109/ieeeconf44664.2019.9048794","title":"Zero Crossing Modulation for Communication with Temporally Oversampled 1-Bit Quantization","display_name":"Zero Crossing Modulation for Communication with Temporally Oversampled 1-Bit Quantization","publication_year":2019,"publication_date":"2019-11-01","ids":{"openalex":"https://openalex.org/W2989851670","doi":"https://doi.org/10.1109/ieeeconf44664.2019.9048794","mag":"2989851670"},"language":"en","primary_location":{"id":"doi:10.1109/ieeeconf44664.2019.9048794","is_oa":false,"landing_page_url":"https://doi.org/10.1109/ieeeconf44664.2019.9048794","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2019 53rd Asilomar Conference on Signals, Systems, and Computers","raw_type":"proceedings-article"},"type":"preprint","indexed_in":["arxiv","crossref","datacite"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://arxiv.org/pdf/1912.00976","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5022117288","display_name":"Gerhard Fettweis","orcid":"https://orcid.org/0000-0003-4622-1311"},"institutions":[{"id":"https://openalex.org/I78650965","display_name":"TU Dresden","ror":"https://ror.org/042aqky30","country_code":"DE","type":"education","lineage":["https://openalex.org/I78650965"]},{"id":"https://openalex.org/I245417339","display_name":"Vodafone (Germany)","ror":"https://ror.org/044qwkx83","country_code":"DE","type":"company","lineage":["https://openalex.org/I245417339","https://openalex.org/I74316835"]}],"countries":["DE"],"is_corresponding":true,"raw_author_name":"Gerhard Fettweis","raw_affiliation_strings":["Technische Universit&#x00E4;t Dresden,Vodafone Chair Mobile Communications Systems, SFB 912 HAEC,Dresden,Germany,01062","Technische Universit\u00e4t Dresden,Vodafone Chair Mobile Communications Systems, SFB 912 HAEC,Dresden,Germany,01062"],"affiliations":[{"raw_affiliation_string":"Technische Universit&#x00E4;t Dresden,Vodafone Chair Mobile Communications Systems, SFB 912 HAEC,Dresden,Germany,01062","institution_ids":["https://openalex.org/I245417339"]},{"raw_affiliation_string":"Technische Universit\u00e4t Dresden,Vodafone Chair Mobile Communications Systems, SFB 912 HAEC,Dresden,Germany,01062","institution_ids":["https://openalex.org/I78650965","https://openalex.org/I245417339"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5070681942","display_name":"Meik D\u00f6rpinghaus","orcid":"https://orcid.org/0000-0003-1257-0281"},"institutions":[{"id":"https://openalex.org/I78650965","display_name":"TU Dresden","ror":"https://ror.org/042aqky30","country_code":"DE","type":"education","lineage":["https://openalex.org/I78650965"]},{"id":"https://openalex.org/I245417339","display_name":"Vodafone (Germany)","ror":"https://ror.org/044qwkx83","country_code":"DE","type":"company","lineage":["https://openalex.org/I245417339","https://openalex.org/I74316835"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Meik D\u00f6rpinghaus","raw_affiliation_strings":["Technische Universit&#x00E4;t Dresden,Vodafone Chair Mobile Communications Systems, SFB 912 HAEC,Dresden,Germany,01062","Technische Universit\u00e4t Dresden,Vodafone Chair Mobile Communications Systems, SFB 912 HAEC,Dresden,Germany,01062"],"affiliations":[{"raw_affiliation_string":"Technische Universit&#x00E4;t Dresden,Vodafone Chair Mobile Communications Systems, SFB 912 HAEC,Dresden,Germany,01062","institution_ids":["https://openalex.org/I245417339"]},{"raw_affiliation_string":"Technische Universit\u00e4t Dresden,Vodafone Chair Mobile Communications Systems, SFB 912 HAEC,Dresden,Germany,01062","institution_ids":["https://openalex.org/I78650965","https://openalex.org/I245417339"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5010309131","display_name":"Sandra Bender","orcid":"https://orcid.org/0000-0001-6368-1526"},"institutions":[{"id":"https://openalex.org/I245417339","display_name":"Vodafone (Germany)","ror":"https://ror.org/044qwkx83","country_code":"DE","type":"company","lineage":["https://openalex.org/I245417339","https://openalex.org/I74316835"]},{"id":"https://openalex.org/I78650965","display_name":"TU Dresden","ror":"https://ror.org/042aqky30","country_code":"DE","type":"education","lineage":["https://openalex.org/I78650965"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Sandra Bender","raw_affiliation_strings":["Technische Universit&#x00E4;t Dresden,Vodafone Chair Mobile Communications Systems, SFB 912 HAEC,Dresden,Germany,01062","Technische Universit\u00e4t Dresden,Vodafone Chair Mobile Communications Systems, SFB 912 HAEC,Dresden,Germany,01062"],"affiliations":[{"raw_affiliation_string":"Technische Universit&#x00E4;t Dresden,Vodafone Chair Mobile Communications Systems, SFB 912 HAEC,Dresden,Germany,01062","institution_ids":["https://openalex.org/I245417339"]},{"raw_affiliation_string":"Technische Universit\u00e4t Dresden,Vodafone Chair Mobile Communications Systems, SFB 912 HAEC,Dresden,Germany,01062","institution_ids":["https://openalex.org/I78650965","https://openalex.org/I245417339"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5009637803","display_name":"Lukas T. N. Landau","orcid":"https://orcid.org/0000-0003-4777-5885"},"institutions":[{"id":"https://openalex.org/I2699952","display_name":"Pontifical Catholic University of Rio de Janeiro","ror":"https://ror.org/01dg47b60","country_code":"BR","type":"education","lineage":["https://openalex.org/I2699952"]}],"countries":["BR"],"is_corresponding":false,"raw_author_name":"Lukas Landau","raw_affiliation_strings":["Pontifical Catholic University of Rio de Janeiro,Center for Telecommunications Studies (CETUC),RJ,Brazil"],"affiliations":[{"raw_affiliation_string":"Pontifical Catholic University of Rio de Janeiro,Center for Telecommunications Studies (CETUC),RJ,Brazil","institution_ids":["https://openalex.org/I2699952"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5010026579","display_name":"Peter Neuhaus","orcid":"https://orcid.org/0000-0003-1130-3536"},"institutions":[{"id":"https://openalex.org/I78650965","display_name":"TU Dresden","ror":"https://ror.org/042aqky30","country_code":"DE","type":"education","lineage":["https://openalex.org/I78650965"]},{"id":"https://openalex.org/I245417339","display_name":"Vodafone (Germany)","ror":"https://ror.org/044qwkx83","country_code":"DE","type":"company","lineage":["https://openalex.org/I245417339","https://openalex.org/I74316835"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Peter Neuhaus","raw_affiliation_strings":["Technische Universit&#x00E4;t Dresden,Vodafone Chair Mobile Communications Systems, SFB 912 HAEC,Dresden,Germany,01062","Technische Universit\u00e4t Dresden,Vodafone Chair Mobile Communications Systems, SFB 912 HAEC,Dresden,Germany,01062"],"affiliations":[{"raw_affiliation_string":"Technische Universit&#x00E4;t Dresden,Vodafone Chair Mobile Communications Systems, SFB 912 HAEC,Dresden,Germany,01062","institution_ids":["https://openalex.org/I245417339"]},{"raw_affiliation_string":"Technische Universit\u00e4t Dresden,Vodafone Chair Mobile Communications Systems, SFB 912 HAEC,Dresden,Germany,01062","institution_ids":["https://openalex.org/I78650965","https://openalex.org/I245417339"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5082819930","display_name":"Martin Schl\u00fcter","orcid":"https://orcid.org/0000-0001-7524-5713"},"institutions":[{"id":"https://openalex.org/I245417339","display_name":"Vodafone (Germany)","ror":"https://ror.org/044qwkx83","country_code":"DE","type":"company","lineage":["https://openalex.org/I245417339","https://openalex.org/I74316835"]},{"id":"https://openalex.org/I78650965","display_name":"TU Dresden","ror":"https://ror.org/042aqky30","country_code":"DE","type":"education","lineage":["https://openalex.org/I78650965"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Martin Schl\u00fcter","raw_affiliation_strings":["Technische Universit&#x00E4;t Dresden,Vodafone Chair Mobile Communications Systems, SFB 912 HAEC,Dresden,Germany,01062","Technische Universit\u00e4t Dresden,Vodafone Chair Mobile Communications Systems, SFB 912 HAEC,Dresden,Germany,01062"],"affiliations":[{"raw_affiliation_string":"Technische Universit&#x00E4;t Dresden,Vodafone Chair Mobile Communications Systems, SFB 912 HAEC,Dresden,Germany,01062","institution_ids":["https://openalex.org/I245417339"]},{"raw_affiliation_string":"Technische Universit\u00e4t Dresden,Vodafone Chair Mobile Communications Systems, SFB 912 HAEC,Dresden,Germany,01062","institution_ids":["https://openalex.org/I78650965","https://openalex.org/I245417339"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":6,"corresponding_author_ids":["https://openalex.org/A5022117288"],"corresponding_institution_ids":["https://openalex.org/I245417339","https://openalex.org/I78650965"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":true,"cited_by_count":0,"citation_normalized_percentile":{"value":0.12431263,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"207","last_page":"214"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10125","display_name":"Advanced Wireless Communication Techniques","score":0.9998999834060669,"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/T10125","display_name":"Advanced Wireless Communication Techniques","score":0.9998999834060669,"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/T11321","display_name":"Error Correcting Code Techniques","score":0.9987999796867371,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"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/T11447","display_name":"Blind Source Separation Techniques","score":0.9984999895095825,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/oversampling","display_name":"Oversampling","score":0.8964945077896118},{"id":"https://openalex.org/keywords/zero-crossing","display_name":"Zero crossing","score":0.7393202185630798},{"id":"https://openalex.org/keywords/quantization","display_name":"Quantization (signal processing)","score":0.6286100149154663},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.599163830280304},{"id":"https://openalex.org/keywords/modulation","display_name":"Modulation (music)","score":0.5636842846870422},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.5091013312339783},{"id":"https://openalex.org/keywords/delta-modulation","display_name":"Delta modulation","score":0.47099703550338745},{"id":"https://openalex.org/keywords/delta-sigma-modulation","display_name":"Delta-sigma modulation","score":0.4328676462173462},{"id":"https://openalex.org/keywords/bandwidth","display_name":"Bandwidth (computing)","score":0.42916184663772583},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.39093852043151855},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.26805543899536133},{"id":"https://openalex.org/keywords/pulse-amplitude-modulation","display_name":"Pulse-amplitude modulation","score":0.24834901094436646},{"id":"https://openalex.org/keywords/power","display_name":"Power (physics)","score":0.23994088172912598},{"id":"https://openalex.org/keywords/detector","display_name":"Detector","score":0.2210884392261505},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.14430269598960876},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.12033185362815857}],"concepts":[{"id":"https://openalex.org/C197323446","wikidata":"https://www.wikidata.org/wiki/Q331222","display_name":"Oversampling","level":3,"score":0.8964945077896118},{"id":"https://openalex.org/C120415902","wikidata":"https://www.wikidata.org/wiki/Q462383","display_name":"Zero crossing","level":3,"score":0.7393202185630798},{"id":"https://openalex.org/C28855332","wikidata":"https://www.wikidata.org/wiki/Q198099","display_name":"Quantization (signal processing)","level":2,"score":0.6286100149154663},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.599163830280304},{"id":"https://openalex.org/C123079801","wikidata":"https://www.wikidata.org/wiki/Q750240","display_name":"Modulation (music)","level":2,"score":0.5636842846870422},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.5091013312339783},{"id":"https://openalex.org/C110558960","wikidata":"https://www.wikidata.org/wiki/Q163461","display_name":"Delta modulation","level":5,"score":0.47099703550338745},{"id":"https://openalex.org/C68754193","wikidata":"https://www.wikidata.org/wiki/Q1184820","display_name":"Delta-sigma modulation","level":3,"score":0.4328676462173462},{"id":"https://openalex.org/C2776257435","wikidata":"https://www.wikidata.org/wiki/Q1576430","display_name":"Bandwidth (computing)","level":2,"score":0.42916184663772583},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.39093852043151855},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.26805543899536133},{"id":"https://openalex.org/C20518276","wikidata":"https://www.wikidata.org/wiki/Q186130","display_name":"Pulse-amplitude modulation","level":4,"score":0.24834901094436646},{"id":"https://openalex.org/C163258240","wikidata":"https://www.wikidata.org/wiki/Q25342","display_name":"Power (physics)","level":2,"score":0.23994088172912598},{"id":"https://openalex.org/C94915269","wikidata":"https://www.wikidata.org/wiki/Q1834857","display_name":"Detector","level":2,"score":0.2210884392261505},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.14430269598960876},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.12033185362815857},{"id":"https://openalex.org/C24890656","wikidata":"https://www.wikidata.org/wiki/Q82811","display_name":"Acoustics","level":1,"score":0.0},{"id":"https://openalex.org/C2780167933","wikidata":"https://www.wikidata.org/wiki/Q1550652","display_name":"Pulse (music)","level":3,"score":0.0},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0}],"mesh":[],"locations_count":4,"locations":[{"id":"doi:10.1109/ieeeconf44664.2019.9048794","is_oa":false,"landing_page_url":"https://doi.org/10.1109/ieeeconf44664.2019.9048794","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2019 53rd Asilomar Conference on Signals, Systems, and Computers","raw_type":"proceedings-article"},{"id":"pmh:oai:arXiv.org:1912.00976","is_oa":true,"landing_page_url":"http://arxiv.org/abs/1912.00976","pdf_url":"https://arxiv.org/pdf/1912.00976","source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"text"},{"id":"mag:2989851670","is_oa":true,"landing_page_url":"https://arxiv.org/pdf/1912.00976v1","pdf_url":null,"source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"arXiv (Cornell University)","raw_type":null},{"id":"doi:10.48550/arxiv.1912.00976","is_oa":true,"landing_page_url":"https://doi.org/10.48550/arxiv.1912.00976","pdf_url":null,"source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":null,"raw_source_name":null,"raw_type":"article"}],"best_oa_location":{"id":"pmh:oai:arXiv.org:1912.00976","is_oa":true,"landing_page_url":"http://arxiv.org/abs/1912.00976","pdf_url":"https://arxiv.org/pdf/1912.00976","source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"text"},"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/7","score":0.8600000143051147,"display_name":"Affordable and clean energy"}],"awards":[],"funders":[{"id":"https://openalex.org/F4320320879","display_name":"Deutsche Forschungsgemeinschaft","ror":"https://ror.org/018mejw64"},{"id":"https://openalex.org/F4320321613","display_name":"Technische Universit\u00e4t Dresden","ror":"https://ror.org/042aqky30"},{"id":"https://openalex.org/F4320336851","display_name":"Zentrum f\u00fcr Informationsdienste und Hochleistungsrechnen, Technische Universit\u00e4t Dresden","ror":null}],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2989851670.pdf","grobid_xml":"https://content.openalex.org/works/W2989851670.grobid-xml"},"referenced_works_count":24,"referenced_works":["https://openalex.org/W1579764623","https://openalex.org/W1667635829","https://openalex.org/W1886640579","https://openalex.org/W1989313317","https://openalex.org/W1991639238","https://openalex.org/W1995875735","https://openalex.org/W2015658353","https://openalex.org/W2045407304","https://openalex.org/W2074873507","https://openalex.org/W2103364136","https://openalex.org/W2104998202","https://openalex.org/W2125095826","https://openalex.org/W2165808853","https://openalex.org/W2585407760","https://openalex.org/W2745138419","https://openalex.org/W2804438753","https://openalex.org/W2889282859","https://openalex.org/W2896938856","https://openalex.org/W2902288217","https://openalex.org/W2958670003","https://openalex.org/W2970180052","https://openalex.org/W2970264925","https://openalex.org/W2970680027","https://openalex.org/W4254122646"],"related_works":["https://openalex.org/W3013296312","https://openalex.org/W3170991593","https://openalex.org/W2973423011","https://openalex.org/W3196167509","https://openalex.org/W2144194713","https://openalex.org/W1985409011","https://openalex.org/W2074873507","https://openalex.org/W2550671874","https://openalex.org/W171912966","https://openalex.org/W2001857610","https://openalex.org/W2784196086","https://openalex.org/W1973350392","https://openalex.org/W2886710327","https://openalex.org/W2963837732","https://openalex.org/W1493314894","https://openalex.org/W3213281012","https://openalex.org/W3016554966","https://openalex.org/W2348218849","https://openalex.org/W2318554375","https://openalex.org/W3121939022"],"abstract_inverted_index":{"Today's":[0],"communication":[1,13],"systems":[2,14],"typically":[3],"use":[4],"high":[5,34],"resolution":[6],"analog-to-digital":[7],"converters":[8],"(ADCs).":[9],"However,":[10],"considering":[11],"future":[12],"with":[15],"data":[16],"rates":[17],"in":[18,79],"the":[19,23,33,49,73,80],"order":[20],"of":[21,58],"100Gbit/s":[22],"ADC":[24],"power":[25],"consumption":[26],"becomes":[27],"a":[28,56,69],"major":[29],"factor":[30],"due":[31],"to":[32,76],"sampling":[35],"rates.":[36],"A":[37,64],"promising":[38],"alternative":[39,112],"are":[40],"receivers":[41],"based":[42,102],"on":[43,91],"1-bit":[44,101],"quantization":[45],"and":[46,62,99,106],"oversampling":[47],"w.r.t.":[48],"signal":[50],"bandwidth.":[51],"Such":[52],"an":[53,89,111],"approach":[54],"requires":[55],"redesign":[57],"modulation,":[59,94],"receiver":[60],"synchronization,":[61],"demapping.":[63],"zero":[65,81,92,113],"crossing":[66,82,93,114],"modulation":[67,109,115],"is":[68],"natural":[70],"choice":[71],"as":[72,110],"information":[74],"needs":[75],"be":[77],"carried":[78],"time":[83],"instants.":[84],"The":[85],"present":[86],"paper":[87],"provides":[88],"overview":[90],"achievable":[95],"rates,":[96],"sequence":[97],"mapping":[98],"demapping,":[100],"channel":[103],"parameter":[104],"estimation,":[105],"continuous":[107],"phase":[108],"scheme.":[116]},"counts_by_year":[],"updated_date":"2026-03-20T23:20:44.827607","created_date":"2025-10-10T00:00:00"}
