{"created":"2021-03-01T06:07:15.629982+00:00","id":3501,"links":{},"metadata":{"_buckets":{"deposit":"c92bfbbe-e21f-467b-b836-082462a3c410"},"_deposit":{"id":"3501","owners":[],"pid":{"revision_id":0,"type":"depid","value":"3501"},"status":"published"},"_oai":{"id":"oai:niigata-u.repo.nii.ac.jp:00003501","sets":["423:424:425","453:454"]},"item_5_alternative_title_1":{"attribute_name":"その他のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"Optimization of a Receiver System with a Viterbi Detector"}]},"item_5_biblio_info_6":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1979-01","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"1","bibliographicPageEnd":"65","bibliographicPageStart":"58","bibliographicVolumeNumber":"J62-B","bibliographic_titles":[{"bibliographic_title":"電子通信学会論文誌. B"},{"bibliographic_title":"電子通信学会論文誌. B","bibliographic_titleLang":"en"}]}]},"item_5_description_4":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"音声帯域電話回線を媒体として，伝送速度が1万bpsを超える高速なデータ通信系を構成する際にビタビ識別器を用いることが注目されている．本論文では，ビタビ識別器を実現可能なものとし，且つ，良好な伝送特性を得ることを目的として受信系を最適化する問題を論じている．まず初めに，与えられたDIRの長さについて，実効SN比を最大にする受信フィルタ特性とDIRを明らかにしている．次に，DIRの長さをどの程度の値に定めるならば良好な伝送特性が得られるかという問題に対して判断の規準を与えるため，DIRの長さが任意に大きくなりうるとしたときの実効SN比の上限を解析的に導いている．更に，数値計算を行い，得られた数値解を基に考察を行っている．その結果，伝送速度が1万数千bps程度のSSB伝送系においては，DIRの長さを3，ないしは，4に定めることにより，良好な特性が得られること，又，最適DIRは伝送路特性にそれほど依存しないことなどが明らかになった．そして，ビタビ識別器を含むデータ通信系を実現することへの見通しが得られた．","subitem_description_type":"Abstract"}]},"item_5_full_name_3":{"attribute_name":"著者別名","attribute_value_mlt":[{"nameIdentifiers":[{"nameIdentifier":"43364","nameIdentifierScheme":"WEKO"}],"names":[{"name":"Ogawa, Yasutaka"}]},{"nameIdentifiers":[{"nameIdentifier":"43365","nameIdentifierScheme":"WEKO"}],"names":[{"name":"Sengoku, Masakazu"}]},{"nameIdentifiers":[{"nameIdentifier":"43366","nameIdentifierScheme":"WEKO"}],"names":[{"name":"Matsumoto, Tadashi"}]}]},"item_5_publisher_7":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"電子情報通信学会"}]},"item_5_relation_31":{"attribute_name":"異版である","attribute_value_mlt":[{"subitem_relation_type":"isVersionOf","subitem_relation_type_id":{"subitem_relation_type_id_text":"http://www.ieice.org/jpn/trans_online/","subitem_relation_type_select":"URI"}}]},"item_5_rights_15":{"attribute_name":"権利","attribute_value_mlt":[{"subitem_rights":"copyright(C)1979 IEICE"}]},"item_5_select_19":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_select_item":"publisher"}]},"item_5_source_id_11":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN0015328X","subitem_source_identifier_type":"NCID"}]},"item_5_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"03736105","subitem_source_identifier_type":"ISSN"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"小川, 恭孝"}],"nameIdentifiers":[{"nameIdentifier":"43361","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"仙石, 正和"}],"nameIdentifiers":[{"nameIdentifier":"43362","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"松本, 正"}],"nameIdentifiers":[{"nameIdentifier":"43363","nameIdentifierScheme":"WEKO"}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2019-07-30"}],"displaytype":"detail","filename":"J62-B_1_58-65.pdf","filesize":[{"value":"619.2 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"J62-B_1_58-65.pdf","url":"https://niigata-u.repo.nii.ac.jp/record/3501/files/J62-B_1_58-65.pdf"},"version_id":"e7784817-61d3-455e-94f9-f7da42ad044a"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"journal article","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"ビダビ識別器を含む受信系の最適化","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"ビダビ識別器を含む受信系の最適化"},{"subitem_title":"ビダビ識別器を含む受信系の最適化","subitem_title_language":"en"}]},"item_type_id":"5","owner":"1","path":["454","425"],"pubdate":{"attribute_name":"公開日","attribute_value":"2013-05-20"},"publish_date":"2013-05-20","publish_status":"0","recid":"3501","relation_version_is_last":true,"title":["ビダビ識別器を含む受信系の最適化"],"weko_creator_id":"1","weko_shared_id":null},"updated":"2022-12-15T03:36:38.844748+00:00"}