{"created":"2023-06-19T12:44:18.519983+00:00","id":3746,"links":{},"metadata":{"_buckets":{"deposit":"fc036b4f-2d08-444a-a31e-5675d04f0da5"},"_deposit":{"created_by":3,"id":"3746","owners":[3],"pid":{"revision_id":0,"type":"depid","value":"3746"},"status":"published"},"_oai":{"id":"oai:tokyo-metro-u.repo.nii.ac.jp:00003746","sets":["1647:627:628"]},"author_link":["11105","11107","11108","11104","11106","11103"],"item_6_alternative_title_19":{"attribute_name":"その他のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"Determination method of distance to strike point using observed electric field signals radiated from cloud-to-ground lightning by digital natural observation method"}]},"item_6_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2004-07-01","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"7","bibliographicPageEnd":"978","bibliographicPageStart":"972","bibliographicVolumeNumber":"J87-B","bibliographic_titles":[{"bibliographic_title":"電子情報通信学会論文誌"}]}]},"item_6_creator_2":{"attribute_name":"著者(ヨミ)","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"オオクボ, カン"}],"nameIdentifiers":[{"nameIdentifier":"11105","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"タケウチ, ノブナオ"}],"nameIdentifiers":[{"nameIdentifier":"11106","nameIdentifierScheme":"WEKO"}]}]},"item_6_creator_3":{"attribute_name":"著者別名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Okubo, Kan"}],"nameIdentifiers":[{"nameIdentifier":"11107","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Takeuchi, Nobunao"}],"nameIdentifiers":[{"nameIdentifier":"11108","nameIdentifierScheme":"WEKO"}]}]},"item_6_description_4":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"自然環境で実際に観測される電磁界信号の時間変動波形は非常に複雑な非定常信号となる.このような非定常信号に対しては一定の期間を周波数解析するのではなく,瞬時瞬時の変化を解析する自然観測法理論の適用が有効と考えられる.特に観測波形の特徴を示す時間を検出する場合は有用な手法となる.本論文では落雷による放射電界信号の観測を行い,落雷放射電界による電離層-大地間の反射波の観測波形にディジタル自然観測法を適用し,反射波の受信時間差を決定する場合について検討が行われている.自然観測法理論を適用することで,ばらつきの少ない等価的な観測地点と放電発生地点との距離を決定できることが明らかになり,自然観測法理論による信号解析の有効性が示されている.","subitem_description_type":"Abstract"}]},"item_6_link_44":{"attribute_name":"権利URI","attribute_value_mlt":[{"subitem_link_text":"http://search.ieice.org/","subitem_link_url":"http://search.ieice.org/"}]},"item_6_publisher_33":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"社団法人電子情報通信学会"}]},"item_6_relation_42":{"attribute_name":"関係URI","attribute_value_mlt":[{"subitem_relation_name":[{"subitem_relation_name_text":"http://ci.nii.ac.jp/naid/110003170756"}],"subitem_relation_type_id":{"subitem_relation_type_id_text":"http://ci.nii.ac.jp/naid/110003170756","subitem_relation_type_select":"URI"}}]},"item_6_rights_13":{"attribute_name":"権利","attribute_value_mlt":[{"subitem_rights":"copyright©2008 IEICE"}]},"item_6_source_id_10":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA11325909","subitem_source_identifier_type":"NCID"}]},"item_6_source_id_8":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"13444697","subitem_source_identifier_type":"ISSN"}]},"item_6_version_type_16":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"大久保, 寛"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"竹内, 伸直"}],"nameIdentifiers":[{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2016-08-04"}],"displaytype":"detail","filename":"10102-001.pdf","filesize":[{"value":"769.3 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"10102-001.pdf","url":"https://tokyo-metro-u.repo.nii.ac.jp/record/3746/files/10102-001.pdf"},"version_id":"33bac104-e5c1-484e-aec6-d648ba46fa10"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"自然観測法","subitem_subject_scheme":"Other"},{"subitem_subject":"基本観測フィルタ","subitem_subject_scheme":"Other"},{"subitem_subject":"落雷","subitem_subject_scheme":"Other"},{"subitem_subject":"空電","subitem_subject_scheme":"Other"},{"subitem_subject":"電磁層反射","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":"journal 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