{"created":"2023-05-15T11:55:19.248299+00:00","id":195,"links":{},"metadata":{"_buckets":{"deposit":"26dc79c7-830f-4b41-b97f-b5a51e05503c"},"_deposit":{"created_by":18,"id":"195","owners":[18],"pid":{"revision_id":0,"type":"depid","value":"195"},"status":"published"},"_oai":{"id":"oai:kyutech.repo.nii.ac.jp:00000195","sets":["6:7"]},"author_link":[],"item_20_date_granted_61":{"attribute_name":"学位授与年月日","attribute_value_mlt":[{"subitem_dategranted":"2007-03-23"}]},"item_20_degree_grantor_59":{"attribute_name":"学位授与機関","attribute_value_mlt":[{"subitem_degreegrantor":[{"subitem_degreegrantor_name":"九州工業大学"}],"subitem_degreegrantor_identifier":[{"subitem_degreegrantor_identifier_name":"17104","subitem_degreegrantor_identifier_scheme":"kakenhi"}]}]},"item_20_degree_name_58":{"attribute_name":"学位名","attribute_value_mlt":[{"subitem_degreename":"博士（情報工学）"}]},"item_20_description_30":{"attribute_name":"目次","attribute_value_mlt":[{"subitem_description":"第1章 はじめに||第2章 SRCにおける振幅軸歪の改善||第3章 PLLにおける時間軸歪の改善||第4章 まとめと展望||参考文献||謝辞||付録A PLLの伝達関数||付録B TDC技術による高分解能位相補間法の効果||付録C アナログ・タイミング生成器","subitem_description_type":"Other"}]},"item_20_description_4":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"ディジタル・オーディオは登場とともに、アナログ主流であった市場を席巻した。これはディジタル・オーディオがアナログ・オーディオに比べ、様々な点で優れていたためである。しかし、ディジタルであるから完璧というわけではない。高品質のオーディオを求める場合、アナログにはない歪として、（１）サンプリング・レート変換の際に生じる振幅軸歪と（２）DA(Digital to Analog)変換の際に問題となる時間軸歪が問題である。本研究では、（１）の振幅軸歪の問題には、DFTとフーリエ級数を用いたフーリエ補間法による、低歪かつ小規模実現での解決を図る。また、（２）の時間軸歪の問題はPLLの動的なノイズ、ジッタが原因である。そこで、本研究では、PLLのサンプリング回数を向上させる位相比較器を提案し、このジッタの低減を図った。","subitem_description_type":"Abstract"}]},"item_20_description_5":{"attribute_name":"備考","attribute_value_mlt":[{"subitem_description":"九州工業大学博士学位論文 学位記番号: 情工博甲第194号 学位授与年月日: 平成19年3月23日","subitem_description_type":"Other"}]},"item_20_description_60":{"attribute_name":"学位授与年度","attribute_value_mlt":[{"subitem_description":"平成18年度","subitem_description_type":"Other"}]},"item_20_dissertation_number_62":{"attribute_name":"学位授与番号","attribute_value_mlt":[{"subitem_dissertationnumber":"甲第194号"}]},"item_20_identifier_registration":{"attribute_name":"ID登録","attribute_value_mlt":[{"subitem_identifier_reg_text":"10.18997/00000189","subitem_identifier_reg_type":"JaLC"}]},"item_20_text_34":{"attribute_name":"アドバイザー","attribute_value_mlt":[{"subitem_text_value":"小林, 史典"}]},"item_20_version_type_63":{"attribute_name":"出版タイプ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_access_right":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right":"open access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_abf2"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"井上, 学","creatorNameLang":"ja"}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2007-11-27"}],"displaytype":"detail","filename":"jou_k_194.pdf","filesize":[{"value":"505.8 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"jou_k_194.pdf","objectType":"fulltext","url":"https://kyutech.repo.nii.ac.jp/record/195/files/jou_k_194.pdf"},"version_id":"1c5de4ad-50d4-4235-8212-b7791b9f8b35"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"digital audio","subitem_subject_scheme":"Other"},{"subitem_subject":"FPGA","subitem_subject_scheme":"Other"},{"subitem_subject":"PLL","subitem_subject_scheme":"Other"},{"subitem_subject":"SRC","subitem_subject_scheme":"Other"}]},"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":"doctoral thesis","resourceuri":"http://purl.org/coar/resource_type/c_db06"}]},"item_title":"ディジタル・オーディオにおける時間/振幅軸歪の改善","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"ディジタル・オーディオにおける時間/振幅軸歪の改善","subitem_title_language":"ja"}]},"item_type_id":"20","owner":"18","path":["7"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2007-11-27"},"publish_date":"2007-11-27","publish_status":"0","recid":"195","relation_version_is_last":true,"title":["ディジタル・オーディオにおける時間/振幅軸歪の改善"],"weko_creator_id":"18","weko_shared_id":-1},"updated":"2024-01-11T02:58:58.989787+00:00"}