{"created":"2021-03-01T06:00:35.782035+00:00","id":8137,"links":{},"metadata":{"_buckets":{"deposit":"fb66133a-4f2c-48c2-9db0-dd6d63ea0da9"},"_deposit":{"id":"8137","owners":[],"pid":{"revision_id":0,"type":"depid","value":"8137"},"status":"published"},"_oai":{"id":"oai:kitami-it.repo.nii.ac.jp:00008137","sets":["1:86"]},"author_link":["42557","42558","42559","44826","44825","42556"],"item_1646810750418":{"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_3_alternative_title_198":{"attribute_name":"その他のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"LONGITUDINAL TRUE PROFILE ESTIMATION BY A MOBILE PROFILOMETER FOR EXPRESSWAYS"}]},"item_3_biblio_info_186":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2014","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"3","bibliographicPageEnd":"I_48","bibliographicPageStart":"I_41","bibliographicVolumeNumber":"70","bibliographic_titles":[{"bibliographic_title":"土木学会論文集E1（舗装工学）"}]}]},"item_3_description_184":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"加速度計を用いた簡易ラフネス測定装置である，モバイルプロフィロメータ(MPM)で得られるプロファイルは，<i>IRI</i>(国際ラフネス指数)のリアルタイム計算に最適化されているため，固有の路面波長検出特性を持つ．そこで，本研究では，波長検出特性をキャンセルする特殊な応答を持つ復元フィルタを，FFT(高速フーリエ変換)を用いた信号処理に基づき設計し，MPMによる絶対プロファイルの推定方法について検討した．その結果，MPMによる測定プロファイルは，水準測量との比較で，逆解析における相対誤差が20.6%から32.7%であるのに対し，復元フィルタによる推定では，3.8%から12.6%と，測定精度が大幅に改善された．また，MPMによる，リアルタイムでの<i>IRI</i>測定は，水準測量に対する相対誤差が最大でも5.8%と，実用上十分な精度であることを確認した． In recent years, expressway authorities require an effective method for monitoring and measuring surface characteristics of their pavements. This study examines an estimation method of a longitudinal true profile by an accelerometer-based mobile profilometer (MPM) for express way pavements. One of the advantages of the MPM is to capture the information from profile measurements. However, since the measurement algorithm of the MPM is optimized to compute the <i>IRI</i> in real-time, the back-calculated profile is distorted by the natural frequencies of suspension components. In this study, we examine an estimation technique of a true profile by developing a reconstruction filter to attenuate the distortion in the spatial frequency domain by the Fast Fourier Transform (FFT) method. As the result of a validation experiment, the MPM with reconstruction filters satisfies practical requirements as a profiler that is within 30% error compared with a rod & level survey. The result also indicates that the MPM basically has a capacity to measure the <i>IRI</i> in real-time, and the back-calculated profile is appropriate for the purpose.","subitem_description_type":"Abstract"}]},"item_3_full_name_183":{"attribute_name":"著者別名","attribute_value_mlt":[{"nameIdentifiers":[{"nameIdentifier":"42557","nameIdentifierScheme":"WEKO"}],"names":[{"name":"TOMIYAMA, Kazuya","nameLang":"en"}]},{"nameIdentifiers":[{"nameIdentifier":"42558","nameIdentifierScheme":"WEKO"}],"names":[{"name":"KAWAMURA, Akira","nameLang":"en"}]},{"nameIdentifiers":[{"nameIdentifier":"42559","nameIdentifierScheme":"WEKO"}],"names":[{"name":"OHIRO, Tomonori","nameLang":"en"}]}]},"item_3_publisher_212":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"公益社団法人　土木学会"}]},"item_3_relation_191":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"http://doi.org/10.2208/jscejpe.70.I_41","subitem_relation_type_select":"DOI"}}]},"item_3_rights_192":{"attribute_name":"権利","attribute_value_mlt":[{"subitem_rights":"c 2014 公益社団法人　土木学会"}]},"item_3_select_195":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_select_item":"publisher"}]},"item_access_right":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right_uri":"open access"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"富山, 和也","creatorNameLang":"ja"}],"nameIdentifiers":[{},{}]},{"creatorNames":[{"creatorName":"川村, 彰","creatorNameLang":"ja"}],"nameIdentifiers":[{},{}]},{"creatorNames":[{"creatorName":"大廣, 智則","creatorNameLang":"ja"}],"nameIdentifiers":[{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2016-11-22"}],"displaytype":"detail","filename":"2014_モバイルプロフィロメータを利用した高速道路における絶対プロファイルの推定.pdf","filesize":[{"value":"1.2 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"2014_モバイルプロフィロメータを利用した高速道路における絶対プロファイルの推定.pdf","url":"https://kitami-it.repo.nii.ac.jp/record/8137/files/2014_モバイルプロフィロメータを利用した高速道路における絶対プロファイルの推定.pdf"},"version_id":"320e7947-d4ce-4d66-adaf-fe2352700ee9"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"mobile profilometer","subitem_subject_scheme":"Other"},{"subitem_subject":"true profile","subitem_subject_scheme":"Other"},{"subitem_subject":"Fast Fourier Transform","subitem_subject_scheme":"Other"},{"subitem_subject":"signal processing","subitem_subject_scheme":"Other"},{"subitem_subject":"accelerometer","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 article","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"モバイルプロフィロメータを利用した高速道路における絶対プロファイルの推定","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"モバイルプロフィロメータを利用した高速道路における絶対プロファイルの推定","subitem_title_language":"ja"},{"subitem_title":"LONGITUDINAL TRUE PROFILE ESTIMATION BY A MOBILE PROFILOMETER FOR EXPRESSWAYS","subitem_title_language":"en"}]},"item_type_id":"3","owner":"1","path":["86"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2016-03-25"},"publish_date":"2016-03-25","publish_status":"0","recid":"8137","relation_version_is_last":true,"title":["モバイルプロフィロメータを利用した高速道路における絶対プロファイルの推定"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2022-12-13T02:25:03.830316+00:00"}