{"id":"https://openalex.org/W2110437732","doi":"https://doi.org/10.1109/tcom.1978.1094104","title":"A Microprocessor-Based PSK Modem for Packet Transmission Over Satellite Channels","display_name":"A Microprocessor-Based PSK Modem for Packet Transmission Over Satellite Channels","publication_year":1978,"publication_date":"1978-05-01","ids":{"openalex":"https://openalex.org/W2110437732","doi":"https://doi.org/10.1109/tcom.1978.1094104","mag":"2110437732"},"language":"en","primary_location":{"id":"doi:10.1109/tcom.1978.1094104","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tcom.1978.1094104","pdf_url":null,"source":{"id":"https://openalex.org/S4210170832","display_name":"IRE Transactions on Communications Systems","issn_l":"0096-2244","issn":["0096-2244","2162-2132"],"is_oa":false,"is_in_doaj":false,"is_core":false,"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 Communications","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/A5004167000","display_name":"C. Heegard","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"C. Heegard","raw_affiliation_strings":["LINKABIT Corporation, San Diego, CA, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"LINKABIT Corporation, San Diego, CA, USA","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5081633639","display_name":"J. A. Heller","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"J. Heller","raw_affiliation_strings":["LINKABIT Corporation, San Diego, CA, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"LINKABIT Corporation, San Diego, CA, USA","institution_ids":[]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5078975478","display_name":"Andrew J. Viterbi","orcid":"https://orcid.org/0000-0003-4671-9849"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"A. Viterbi","raw_affiliation_strings":["LINKABIT Corporation, San Diego, CA, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"LINKABIT Corporation, San Diego, CA, USA","institution_ids":[]}]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":26.2583,"has_fulltext":false,"cited_by_count":24,"citation_normalized_percentile":{"value":0.98919748,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":94},"biblio":{"volume":"26","issue":"5","first_page":"552","last_page":"564"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12042","display_name":"Satellite Communication Systems","score":0.9991999864578247,"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/T12042","display_name":"Satellite Communication Systems","score":0.9991999864578247,"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/T10125","display_name":"Advanced Wireless Communication Techniques","score":0.9968000054359436,"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/T10575","display_name":"Wireless Communication Networks Research","score":0.9965000152587891,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.707908570766449},{"id":"https://openalex.org/keywords/phase-shift-keying","display_name":"Phase-shift keying","score":0.6956409811973572},{"id":"https://openalex.org/keywords/demodulation","display_name":"Demodulation","score":0.6467894911766052},{"id":"https://openalex.org/keywords/network-packet","display_name":"Network packet","score":0.6037440896034241},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.5049133896827698},{"id":"https://openalex.org/keywords/transmission","display_name":"Transmission (telecommunications)","score":0.46023014187812805},{"id":"https://openalex.org/keywords/bit-error-rate","display_name":"Bit error rate","score":0.45904913544654846},{"id":"https://openalex.org/keywords/transmission-delay","display_name":"Transmission delay","score":0.4538312554359436},{"id":"https://openalex.org/keywords/real-time-computing","display_name":"Real-time computing","score":0.4382331669330597},{"id":"https://openalex.org/keywords/data-transmission","display_name":"Data transmission","score":0.4295051097869873},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.34665900468826294},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.27010440826416016},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.18090960383415222},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.15537184476852417}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.707908570766449},{"id":"https://openalex.org/C186378180","wikidata":"https://www.wikidata.org/wiki/Q4874866","display_name":"Phase-shift keying","level":4,"score":0.6956409811973572},{"id":"https://openalex.org/C195251586","wikidata":"https://www.wikidata.org/wiki/Q1185939","display_name":"Demodulation","level":3,"score":0.6467894911766052},{"id":"https://openalex.org/C158379750","wikidata":"https://www.wikidata.org/wiki/Q214111","display_name":"Network packet","level":2,"score":0.6037440896034241},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.5049133896827698},{"id":"https://openalex.org/C761482","wikidata":"https://www.wikidata.org/wiki/Q118093","display_name":"Transmission (telecommunications)","level":2,"score":0.46023014187812805},{"id":"https://openalex.org/C56296756","wikidata":"https://www.wikidata.org/wiki/Q840922","display_name":"Bit error rate","level":3,"score":0.45904913544654846},{"id":"https://openalex.org/C108921912","wikidata":"https://www.wikidata.org/wiki/Q7834639","display_name":"Transmission delay","level":3,"score":0.4538312554359436},{"id":"https://openalex.org/C79403827","wikidata":"https://www.wikidata.org/wiki/Q3988","display_name":"Real-time computing","level":1,"score":0.4382331669330597},{"id":"https://openalex.org/C557945733","wikidata":"https://www.wikidata.org/wiki/Q389772","display_name":"Data transmission","level":2,"score":0.4295051097869873},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.34665900468826294},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.27010440826416016},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.18090960383415222},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.15537184476852417}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/tcom.1978.1094104","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tcom.1978.1094104","pdf_url":null,"source":{"id":"https://openalex.org/S4210170832","display_name":"IRE Transactions on Communications Systems","issn_l":"0096-2244","issn":["0096-2244","2162-2132"],"is_oa":false,"is_in_doaj":false,"is_core":false,"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 Communications","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Affordable and clean energy","score":0.8999999761581421,"id":"https://metadata.un.org/sdg/7"}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":3,"referenced_works":["https://openalex.org/W1572713988","https://openalex.org/W1577906631","https://openalex.org/W4251100635"],"related_works":["https://openalex.org/W1514452861","https://openalex.org/W2039294713","https://openalex.org/W2349360399","https://openalex.org/W2154026740","https://openalex.org/W2137481974","https://openalex.org/W2549202407","https://openalex.org/W2051246688","https://openalex.org/W2109000853","https://openalex.org/W1970832199","https://openalex.org/W2069193933"],"abstract_inverted_index":{"This":[0,17],"paper":[1,126],"describes":[2],"a":[3,10,63,140],"microprocessor-based":[4],"modem":[5,19,135],"developed":[6],"for":[7,92],"use":[8],"in":[9],"packet":[11,64,77,106],"switching":[12],"network":[13],"over":[14,33],"satellite":[15],"channels.":[16],"digital":[18],"can":[20,65],"process":[21],"both":[22,111],"BPSK":[23],"and":[24,79,88,96,114,121,139],"QPSK":[25],"packets":[26],"with":[27,35,128],"near":[28],"optimum":[29],"error":[30],"rate":[31],"performance":[32,132],"channels":[34],"marginal":[36],"signal":[37,84],"energy-to-noise":[38],"density":[39],"ratio.":[40],"Of":[41],"principal":[42],"concern":[43],"is":[44],"the":[45,48,54,57,73,76,80,93,98,101,105,108,131,134,146],"development":[46],"of":[47,56,62,75,83,100,104,110,133,143,145],"discrete":[49],"time":[50],"algorithms":[51],"which":[52],"form":[53],"basis":[55],"microinstruction":[58],"program.":[59],"The":[60,125],"processing":[61],"be":[66],"decomposed":[67],"into":[68],"two":[69],"basic":[70],"stages:":[71],"(1)":[72],"detection":[74],"preamble":[78],"rapid":[81],"estimation":[82],"parameters":[85],"(symbol":[86],"timing":[87,113],"carrier":[89,115],"frequency":[90],"offset)":[91],"specific":[94],"packet,":[95],"(2)":[97],"demodulation":[99],"data":[102,122],"portion":[103],"including":[107],"tracking":[109],"symbol":[112,123],"offset":[116],"phase,":[117],"phase":[118],"ambiguity":[119],"resolution":[120],"estimation.":[124],"concludes":[127],"details":[129],"on":[130],"under":[136],"operational":[137],"conditions":[138],"brief":[141],"discussion":[142],"implementation":[144],"processor.":[147]},"counts_by_year":[{"year":2024,"cited_by_count":1},{"year":2021,"cited_by_count":1}],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2025-10-10T00:00:00"}