{"created":"2023-06-20T14:54:11.059016+00:00","id":22459,"links":{},"metadata":{"_buckets":{"deposit":"5ccf0335-b665-4e6a-b847-928d6f89c4c9"},"_deposit":{"created_by":1,"id":"22459","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"22459"},"status":"published"},"_oai":{"id":"oai:jaxa.repo.nii.ac.jp:00022459","sets":["1887:1888"]},"author_link":["210639","210641","210642","210643","210644","210645","210638","210640"],"item_7_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2014-03-24","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"6","bibliographicPageEnd":"6836","bibliographicPageStart":"6829","bibliographicVolumeNumber":"22","bibliographic_titles":[{},{"bibliographic_title":"Optics Express","bibliographic_titleLang":"en"}]}]},"item_7_description_17":{"attribute_name":"抄録（英）","attribute_value_mlt":[{"subitem_description":"A signal processing method based on group delay calculations is introduced for distributed measurements of long-length fiber Bragg gratings (FBGs) based on optical frequency domain reflectometry (OFDR). Bragg wavelength shifts in interfered signals of OFDR are regarded as group delay. By calculating group delay, the distribution of Bragg wavelength shifts is obtained with high computational efficiency. We introduce weighted averaging process for noise reduction. This method required only 3.5% of signal processing time which was necessary for conventional equivalent signal processing based on short-time Fourier transform. The method also showed high sensitivity to experimental signals where non-uniform strain distributions existed in a long-length FBG.","subitem_description_type":"Other"}]},"item_7_description_32":{"attribute_name":"資料番号","attribute_value_mlt":[{"subitem_description":"資料番号: PA1420006000","subitem_description_type":"Other"}]},"item_7_publisher_9":{"attribute_name":"出版者（英）","attribute_value_mlt":[{"subitem_publisher":"Optical Society of America"}]},"item_7_relation_25":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_name":[{"subitem_relation_name_text":"info:doi/10.1364/OE.22.006829"}],"subitem_relation_type_id":{"subitem_relation_type_id_text":"http://dx.doi.org/10.1364/OE.22.006829","subitem_relation_type_select":"DOI"}}]},"item_7_source_id_21":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"1094-4087","subitem_source_identifier_type":"ISSN"}]},"item_7_text_6":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"東京大学"},{"subitem_text_value":"宇宙航空研究開発機構研究開発本部(JAXA)"},{"subitem_text_value":"東京大学"},{"subitem_text_value":"宇宙航空研究開発機構航空本部(JAXA)"}]},"item_7_text_7":{"attribute_name":"著者所属（英）","attribute_value_mlt":[{"subitem_text_language":"en","subitem_text_value":"The University of Tokyo"},{"subitem_text_language":"en","subitem_text_value":"Aerospace Research and Development Directorate, Japan Aerospace Exploration Agency (JAXA)"},{"subitem_text_language":"en","subitem_text_value":"The University of Tokyo"},{"subitem_text_language":"en","subitem_text_value":"Institute of Aeronautical Technology, Japan Aerospace Exploration Agency (JAXA)"}]},"item_access_right":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right":"metadata only access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_14cb"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"和田, 大地"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"井川, 寛隆"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"村山, 英晶"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"葛西, 時雄"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Wada, Daichi","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Igawa, Hirotaka","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Murayama, Hideaki","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Kasai, Tokio","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"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":"Signal processing method based on group delay calculation for distributed Bragg wavelength shift in optical frequency domain reflectometry","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Signal processing method based on group delay calculation for distributed Bragg wavelength shift in optical frequency domain reflectometry","subitem_title_language":"en"}]},"item_type_id":"7","owner":"1","path":["1888"],"pubdate":{"attribute_name":"公開日","attribute_value":"2015-03-26"},"publish_date":"2015-03-26","publish_status":"0","recid":"22459","relation_version_is_last":true,"title":["Signal processing method based on group delay calculation for distributed Bragg wavelength shift in optical frequency domain reflectometry"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-06-21T03:20:50.615223+00:00"}