{"id":"https://openalex.org/W2132576422","doi":"https://doi.org/10.1109/tit.1964.1053685","title":"Pulse position modulation code for the improvement of Doppler shift measurement","display_name":"Pulse position modulation code for the improvement of Doppler shift measurement","publication_year":1964,"publication_date":"1964-07-01","ids":{"openalex":"https://openalex.org/W2132576422","doi":"https://doi.org/10.1109/tit.1964.1053685","mag":"2132576422"},"language":"en","primary_location":{"id":"doi:10.1109/tit.1964.1053685","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tit.1964.1053685","pdf_url":null,"source":{"id":"https://openalex.org/S4502562","display_name":"IEEE Transactions on Information Theory","issn_l":"0018-9448","issn":["0018-9448","1557-9654"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Information Theory","raw_type":"journal-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/A5026853484","display_name":"Liangtian Wan","orcid":"https://orcid.org/0000-0003-0574-8360"},"institutions":[{"id":"https://openalex.org/I154570441","display_name":"University of California, Santa Barbara","ror":"https://ror.org/02t274463","country_code":"US","type":"education","lineage":["https://openalex.org/I154570441"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"L. Wan","raw_affiliation_strings":["Department of Electrical Engineering, University of California, Santa Barbara, CA, USA"],"affiliations":[{"raw_affiliation_string":"Department of Electrical Engineering, University of California, Santa Barbara, CA, USA","institution_ids":["https://openalex.org/I154570441"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5026853484"],"corresponding_institution_ids":["https://openalex.org/I154570441"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.27834424,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"10","issue":"3","first_page":"192","last_page":"195"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10891","display_name":"Radar Systems and Signal Processing","score":0.9966999888420105,"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/T10891","display_name":"Radar Systems and Signal Processing","score":0.9966999888420105,"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/T11038","display_name":"Advanced SAR Imaging Techniques","score":0.968999981880188,"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/T10655","display_name":"GNSS positioning and interference","score":0.9541000127792358,"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/ambiguity-function","display_name":"Ambiguity function","score":0.7909284830093384},{"id":"https://openalex.org/keywords/doppler-effect","display_name":"Doppler effect","score":0.6469631195068359},{"id":"https://openalex.org/keywords/pulse-repetition-frequency","display_name":"Pulse repetition frequency","score":0.5985260009765625},{"id":"https://openalex.org/keywords/doppler-radar","display_name":"Doppler radar","score":0.45123323798179626},{"id":"https://openalex.org/keywords/pulse","display_name":"Pulse (music)","score":0.4498912990093231},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.446103036403656},{"id":"https://openalex.org/keywords/pulse-doppler-radar","display_name":"Pulse-Doppler radar","score":0.4296553432941437},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.42678070068359375},{"id":"https://openalex.org/keywords/ambiguity","display_name":"Ambiguity","score":0.42458951473236084},{"id":"https://openalex.org/keywords/expression","display_name":"Expression (computer science)","score":0.42370718717575073},{"id":"https://openalex.org/keywords/optics","display_name":"Optics","score":0.4226756691932678},{"id":"https://openalex.org/keywords/signal","display_name":"SIGNAL (programming language)","score":0.4189617931842804},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.41662511229515076},{"id":"https://openalex.org/keywords/coding","display_name":"Coding (social sciences)","score":0.41549211740493774},{"id":"https://openalex.org/keywords/pulse-compression","display_name":"Pulse compression","score":0.4126926362514496},{"id":"https://openalex.org/keywords/radar","display_name":"Radar","score":0.39545905590057373},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.3511200547218323},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.23122665286064148},{"id":"https://openalex.org/keywords/radar-imaging","display_name":"Radar imaging","score":0.1390276849269867},{"id":"https://openalex.org/keywords/waveform","display_name":"Waveform","score":0.12343129515647888},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.10924732685089111}],"concepts":[{"id":"https://openalex.org/C50878840","wikidata":"https://www.wikidata.org/wiki/Q3206297","display_name":"Ambiguity function","level":4,"score":0.7909284830093384},{"id":"https://openalex.org/C142757262","wikidata":"https://www.wikidata.org/wiki/Q76436","display_name":"Doppler effect","level":2,"score":0.6469631195068359},{"id":"https://openalex.org/C182862853","wikidata":"https://www.wikidata.org/wiki/Q575887","display_name":"Pulse repetition frequency","level":3,"score":0.5985260009765625},{"id":"https://openalex.org/C2778559676","wikidata":"https://www.wikidata.org/wiki/Q1334213","display_name":"Doppler radar","level":3,"score":0.45123323798179626},{"id":"https://openalex.org/C2780167933","wikidata":"https://www.wikidata.org/wiki/Q1550652","display_name":"Pulse (music)","level":3,"score":0.4498912990093231},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.446103036403656},{"id":"https://openalex.org/C139931591","wikidata":"https://www.wikidata.org/wiki/Q1029151","display_name":"Pulse-Doppler radar","level":4,"score":0.4296553432941437},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.42678070068359375},{"id":"https://openalex.org/C2780522230","wikidata":"https://www.wikidata.org/wiki/Q1140419","display_name":"Ambiguity","level":2,"score":0.42458951473236084},{"id":"https://openalex.org/C90559484","wikidata":"https://www.wikidata.org/wiki/Q778379","display_name":"Expression (computer science)","level":2,"score":0.42370718717575073},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.4226756691932678},{"id":"https://openalex.org/C2779843651","wikidata":"https://www.wikidata.org/wiki/Q7390335","display_name":"SIGNAL (programming language)","level":2,"score":0.4189617931842804},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.41662511229515076},{"id":"https://openalex.org/C179518139","wikidata":"https://www.wikidata.org/wiki/Q5140297","display_name":"Coding (social sciences)","level":2,"score":0.41549211740493774},{"id":"https://openalex.org/C145995521","wikidata":"https://www.wikidata.org/wiki/Q639897","display_name":"Pulse compression","level":3,"score":0.4126926362514496},{"id":"https://openalex.org/C554190296","wikidata":"https://www.wikidata.org/wiki/Q47528","display_name":"Radar","level":2,"score":0.39545905590057373},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.3511200547218323},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.23122665286064148},{"id":"https://openalex.org/C10929652","wikidata":"https://www.wikidata.org/wiki/Q7279985","display_name":"Radar imaging","level":3,"score":0.1390276849269867},{"id":"https://openalex.org/C197424946","wikidata":"https://www.wikidata.org/wiki/Q1165717","display_name":"Waveform","level":3,"score":0.12343129515647888},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.10924732685089111},{"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/C94915269","wikidata":"https://www.wikidata.org/wiki/Q1834857","display_name":"Detector","level":2,"score":0.0},{"id":"https://openalex.org/C1276947","wikidata":"https://www.wikidata.org/wiki/Q333","display_name":"Astronomy","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/tit.1964.1053685","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tit.1964.1053685","pdf_url":null,"source":{"id":"https://openalex.org/S4502562","display_name":"IEEE Transactions on Information Theory","issn_l":"0018-9448","issn":["0018-9448","1557-9654"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Information Theory","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":1,"referenced_works":["https://openalex.org/W1590583843"],"related_works":["https://openalex.org/W2357638088","https://openalex.org/W1599772248","https://openalex.org/W2361155240","https://openalex.org/W1549680088","https://openalex.org/W2741603025","https://openalex.org/W2335856328","https://openalex.org/W2611490669","https://openalex.org/W1558929358","https://openalex.org/W2466110331","https://openalex.org/W2388877317"],"abstract_inverted_index":{"Pulse":[0],"position":[1],"coding":[2],"for":[3,57],"improving":[4],"Doppler":[5,16],"measurement":[6],"by":[7,73],"pulsed":[8],"radar":[9],"with":[10],"respect":[11],"to":[12,27],"Woodward's":[13],"expression":[14,38],"of":[15,22,41,49,55],"ambiguity":[17,37,68],"is":[18,25,52,71],"presented.":[19],"The":[20],"code":[21],"pulse":[23],"positions":[24],"shown":[26],"be":[28],"analytically":[29],"obtained":[30],"from":[31],"the":[32,35,50,53,59,66],"difference":[33],"between":[34],"required":[36],"and":[39],"that":[40,62],"a":[42],"constant":[43],"pulse-repetition":[44],"frequency":[45],"signal.":[46],"One":[47],"feature":[48],"development":[51],"possibility":[54],"codes":[56],"reducing":[58],"spurious":[60],"peaks":[61],"are":[63],"encountered":[64],"in":[65],"usual":[67],"expression.":[69],"This":[70],"accomplished":[72],"an":[74],"approximation":[75],"approach":[76],"using":[77],"delta":[78],"functions.":[79]},"counts_by_year":[],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
