{"id":"https://openalex.org/W1963571323","doi":"https://doi.org/10.1109/icassp.2013.6638646","title":"Modified cramer-rao lower bounds for TOA and symbol width estimation. An application to search and rescue signals","display_name":"Modified cramer-rao lower bounds for TOA and symbol width estimation. An application to search and rescue signals","publication_year":2013,"publication_date":"2013-05-01","ids":{"openalex":"https://openalex.org/W1963571323","doi":"https://doi.org/10.1109/icassp.2013.6638646","mag":"1963571323"},"language":"en","primary_location":{"id":"doi:10.1109/icassp.2013.6638646","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icassp.2013.6638646","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2013 IEEE International Conference on Acoustics, Speech and Signal Processing","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/A5027074453","display_name":"Victor Bissoli Nicolau","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"V. Bissoli Nicolau","raw_affiliation_strings":["Universite Federale Toulouse Midi-Pyrenees, Toulouse, Occitanie, FR"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Universite Federale Toulouse Midi-Pyrenees, Toulouse, Occitanie, FR","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5113513004","display_name":"M. Coulon","orcid":null},"institutions":[{"id":"https://openalex.org/I134560555","display_name":"Universit\u00e9 Toulouse III - Paul Sabatier","ror":"https://ror.org/02v6kpv12","country_code":"FR","type":"education","lineage":["https://openalex.org/I134560555"]},{"id":"https://openalex.org/I205747304","display_name":"Institut National Polytechnique de Toulouse","ror":"https://ror.org/033p9g875","country_code":"FR","type":"education","lineage":["https://openalex.org/I205747304"]},{"id":"https://openalex.org/I3131550300","display_name":"Universit\u00e9 Toulouse-I-Capitole","ror":"https://ror.org/0443n9e75","country_code":"FR","type":"education","lineage":["https://openalex.org/I3131550300"]},{"id":"https://openalex.org/I4210119061","display_name":"Institut de Recherche en Informatique de Toulouse","ror":"https://ror.org/01rx4qw44","country_code":"FR","type":"facility","lineage":["https://openalex.org/I1294671590","https://openalex.org/I205747304","https://openalex.org/I205747304","https://openalex.org/I4210119061","https://openalex.org/I4210152422","https://openalex.org/I4387153255","https://openalex.org/I4405258862","https://openalex.org/I4405259414"]},{"id":"https://openalex.org/I4210152422","display_name":"Universit\u00e9 Toulouse - Jean Jaur\u00e8s","ror":"https://ror.org/04ezk3x31","country_code":"FR","type":"education","lineage":["https://openalex.org/I4210152422"]},{"id":"https://openalex.org/I4210160189","display_name":"Institut Polytechnique de Bordeaux","ror":"https://ror.org/054qv7y42","country_code":"FR","type":"education","lineage":["https://openalex.org/I4210160189"]},{"id":"https://openalex.org/I4387153255","display_name":"\u00c9cole Nationale Sup\u00e9rieure d'\u00c9lectrotechnique, d'\u00c9lectronique, d'Informatique, d'Hydraulique et des T\u00e9l\u00e9communications","ror":"https://ror.org/05wfw4946","country_code":"FR","type":"education","lineage":["https://openalex.org/I205747304","https://openalex.org/I4387153255"]}],"countries":["FR"],"is_corresponding":false,"raw_author_name":"M. Coulon","raw_affiliation_strings":["INP-ENSEEIHT, IRIT, University of Toulouse, Toulouse, France"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"INP-ENSEEIHT, IRIT, University of Toulouse, Toulouse, France","institution_ids":["https://openalex.org/I4210152422","https://openalex.org/I4387153255","https://openalex.org/I205747304","https://openalex.org/I134560555","https://openalex.org/I4210119061","https://openalex.org/I3131550300","https://openalex.org/I4210160189"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5046577308","display_name":"Yoan Gr\u00e9goire","orcid":null},"institutions":[{"id":"https://openalex.org/I2799535048","display_name":"Centre National d'\u00c9tudes Spatiales","ror":"https://ror.org/04h1h0y33","country_code":"FR","type":"government","lineage":["https://openalex.org/I2799535048"]}],"countries":["FR"],"is_corresponding":false,"raw_author_name":"Y. Gregoire","raw_affiliation_strings":["CNES, Toulouse, France"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"CNES, Toulouse, France","institution_ids":["https://openalex.org/I2799535048"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5056091240","display_name":"Thibaud Calmettes","orcid":null},"institutions":[{"id":"https://openalex.org/I4210140930","display_name":"Thales (France)","ror":"https://ror.org/04emwm605","country_code":"FR","type":"company","lineage":["https://openalex.org/I4210140930"]},{"id":"https://openalex.org/I4400009052","display_name":"Thales Alenia Space (France)","ror":"https://ror.org/05gz77z03","country_code":null,"type":"company","lineage":["https://openalex.org/I2802798279","https://openalex.org/I4210140930","https://openalex.org/I4400009052"]}],"countries":["FR"],"is_corresponding":false,"raw_author_name":"T. Calmettes","raw_affiliation_strings":["Thales Alenia Space, Toulouse, France"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Thales Alenia Space, Toulouse, France","institution_ids":["https://openalex.org/I4210140930","https://openalex.org/I4400009052"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5018816346","display_name":"Jean\u2010Yves Tourneret","orcid":"https://orcid.org/0000-0001-5219-3455"},"institutions":[{"id":"https://openalex.org/I134560555","display_name":"Universit\u00e9 Toulouse III - Paul Sabatier","ror":"https://ror.org/02v6kpv12","country_code":"FR","type":"education","lineage":["https://openalex.org/I134560555"]},{"id":"https://openalex.org/I205747304","display_name":"Institut National Polytechnique de Toulouse","ror":"https://ror.org/033p9g875","country_code":"FR","type":"education","lineage":["https://openalex.org/I205747304"]},{"id":"https://openalex.org/I3131550300","display_name":"Universit\u00e9 Toulouse-I-Capitole","ror":"https://ror.org/0443n9e75","country_code":"FR","type":"education","lineage":["https://openalex.org/I3131550300"]},{"id":"https://openalex.org/I4210119061","display_name":"Institut de Recherche en Informatique de Toulouse","ror":"https://ror.org/01rx4qw44","country_code":"FR","type":"facility","lineage":["https://openalex.org/I1294671590","https://openalex.org/I205747304","https://openalex.org/I205747304","https://openalex.org/I4210119061","https://openalex.org/I4210152422","https://openalex.org/I4387153255","https://openalex.org/I4405258862","https://openalex.org/I4405259414"]},{"id":"https://openalex.org/I4210152422","display_name":"Universit\u00e9 Toulouse - Jean Jaur\u00e8s","ror":"https://ror.org/04ezk3x31","country_code":"FR","type":"education","lineage":["https://openalex.org/I4210152422"]},{"id":"https://openalex.org/I4210160189","display_name":"Institut Polytechnique de Bordeaux","ror":"https://ror.org/054qv7y42","country_code":"FR","type":"education","lineage":["https://openalex.org/I4210160189"]},{"id":"https://openalex.org/I4387153255","display_name":"\u00c9cole Nationale Sup\u00e9rieure d'\u00c9lectrotechnique, d'\u00c9lectronique, d'Informatique, d'Hydraulique et des T\u00e9l\u00e9communications","ror":"https://ror.org/05wfw4946","country_code":"FR","type":"education","lineage":["https://openalex.org/I205747304","https://openalex.org/I4387153255"]}],"countries":["FR"],"is_corresponding":false,"raw_author_name":"J.-Y. Tourneret","raw_affiliation_strings":["INP-ENSEEIHT, IRIT, University of Toulouse, Toulouse, France"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"INP-ENSEEIHT, IRIT, University of Toulouse, Toulouse, France","institution_ids":["https://openalex.org/I4210152422","https://openalex.org/I4387153255","https://openalex.org/I205747304","https://openalex.org/I134560555","https://openalex.org/I4210119061","https://openalex.org/I3131550300","https://openalex.org/I4210160189"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":5,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.9662,"has_fulltext":false,"cited_by_count":3,"citation_normalized_percentile":{"value":0.73250577,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":94},"biblio":{"volume":"30","issue":null,"first_page":"5160","last_page":"5164"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11447","display_name":"Blind Source Separation Techniques","score":0.9993000030517578,"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"}},"topics":[{"id":"https://openalex.org/T11447","display_name":"Blind Source Separation Techniques","score":0.9993000030517578,"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/T10711","display_name":"Target Tracking and Data Fusion in Sensor Networks","score":0.9975000023841858,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"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/T10876","display_name":"Fault Detection and Control Systems","score":0.9955999851226807,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/cram\u00e9r\u2013rao-bound","display_name":"Cram\u00e9r\u2013Rao bound","score":0.8146407604217529},{"id":"https://openalex.org/keywords/estimator","display_name":"Estimator","score":0.7417255640029907},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.648150622844696},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5962246656417847},{"id":"https://openalex.org/keywords/time-of-arrival","display_name":"Time of arrival","score":0.5579125881195068},{"id":"https://openalex.org/keywords/signal","display_name":"SIGNAL (programming language)","score":0.5094078183174133},{"id":"https://openalex.org/keywords/estimation-theory","display_name":"Estimation theory","score":0.49118873476982117},{"id":"https://openalex.org/keywords/symbol","display_name":"Symbol (formal)","score":0.47981026768684387},{"id":"https://openalex.org/keywords/sigmoid-function","display_name":"Sigmoid function","score":0.4664700925350189},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.3164616823196411},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.26037585735321045},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.1985594928264618},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.1830330789089203},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.1069730818271637}],"concepts":[{"id":"https://openalex.org/C4978587","wikidata":"https://www.wikidata.org/wiki/Q1138810","display_name":"Cram\u00e9r\u2013Rao bound","level":3,"score":0.8146407604217529},{"id":"https://openalex.org/C185429906","wikidata":"https://www.wikidata.org/wiki/Q1130160","display_name":"Estimator","level":2,"score":0.7417255640029907},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.648150622844696},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5962246656417847},{"id":"https://openalex.org/C163150518","wikidata":"https://www.wikidata.org/wiki/Q4135208","display_name":"Time of arrival","level":3,"score":0.5579125881195068},{"id":"https://openalex.org/C2779843651","wikidata":"https://www.wikidata.org/wiki/Q7390335","display_name":"SIGNAL (programming language)","level":2,"score":0.5094078183174133},{"id":"https://openalex.org/C167928553","wikidata":"https://www.wikidata.org/wiki/Q1376021","display_name":"Estimation theory","level":2,"score":0.49118873476982117},{"id":"https://openalex.org/C134400042","wikidata":"https://www.wikidata.org/wiki/Q2372244","display_name":"Symbol (formal)","level":2,"score":0.47981026768684387},{"id":"https://openalex.org/C81388566","wikidata":"https://www.wikidata.org/wiki/Q526668","display_name":"Sigmoid function","level":3,"score":0.4664700925350189},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.3164616823196411},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.26037585735321045},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.1985594928264618},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.1830330789089203},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.1069730818271637},{"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/C50644808","wikidata":"https://www.wikidata.org/wiki/Q192776","display_name":"Artificial neural network","level":2,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/icassp.2013.6638646","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icassp.2013.6638646","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2013 IEEE International Conference on Acoustics, Speech and Signal Processing","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":20,"referenced_works":["https://openalex.org/W250076511","https://openalex.org/W1525535255","https://openalex.org/W1965392255","https://openalex.org/W2084883233","https://openalex.org/W2086715219","https://openalex.org/W2100841352","https://openalex.org/W2106365207","https://openalex.org/W2107189492","https://openalex.org/W2148342136","https://openalex.org/W2153673163","https://openalex.org/W2156077606","https://openalex.org/W2157005274","https://openalex.org/W2171284622","https://openalex.org/W2292367606","https://openalex.org/W2347790139","https://openalex.org/W2612763149","https://openalex.org/W2798333393","https://openalex.org/W3113221786","https://openalex.org/W6671437908","https://openalex.org/W6737425281"],"related_works":["https://openalex.org/W2066348132","https://openalex.org/W2076213752","https://openalex.org/W2101823128","https://openalex.org/W2585557503","https://openalex.org/W2612484128","https://openalex.org/W2169354510","https://openalex.org/W2612716334","https://openalex.org/W163027446","https://openalex.org/W3107185102","https://openalex.org/W2119198198"],"abstract_inverted_index":{"This":[0],"paper":[1],"focuses":[2],"on":[3,41,71,77],"the":[4,28,47,53,72,87],"performance":[5],"of":[6,8,55],"time":[7],"arrival":[9],"estimators":[10],"for":[11,46],"distress":[12],"beacon":[13],"signals":[14,24,82],"which":[15],"are":[16,25,58,63],"defined":[17],"by":[18],"pulses":[19],"with":[20,52,86],"smooth":[21],"transitions.":[22],"These":[23],"used":[26],"in":[27],"satellite-based":[29],"search":[30,79],"and":[31,80],"rescue":[32,81],"Cospas-Sarsat":[33],"system.":[34],"We":[35],"propose":[36],"a":[37],"signal":[38],"model":[39,57],"based":[40],"sigmoidal":[42],"functions.":[43],"Closed-form":[44],"expressions":[45,62],"modified":[48],"Cram\u00e9r-Rao":[49],"bounds":[50],"associated":[51],"parameters":[54],"this":[56],"derived.":[59],"The":[60],"obtained":[61],"easy":[64],"to":[65],"interpret":[66],"since":[67],"they":[68],"analytically":[69],"depend":[70],"system":[73],"parameters.":[74],"Simulations":[75],"conducted":[76],"realistic":[78],"show":[83],"good":[84],"agreement":[85],"theoretical":[88],"results.":[89]},"counts_by_year":[{"year":2016,"cited_by_count":1},{"year":2014,"cited_by_count":1},{"year":2013,"cited_by_count":1}],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2025-10-10T00:00:00"}
