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  1. 学術雑誌掲載済論文
  2. 和雑誌

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

https://kitami-it.repo.nii.ac.jp/records/8137
c49124d0-22ab-4eed-99a5-0435333b5f0f
名前 / ファイル ライセンス アクション
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 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 (1.2 MB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2016-03-25
タイトル
言語 ja
タイトル 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
タイトル
言語 en
タイトル LONGITUDINAL TRUE PROFILE ESTIMATION BY A MOBILE PROFILOMETER FOR EXPRESSWAYS
言語
言語 jpn
キーワード
主題Scheme Other
主題 mobile profilometer
キーワード
主題Scheme Other
主題 true profile
キーワード
主題Scheme Other
主題 Fast Fourier Transform
キーワード
主題Scheme Other
主題 signal processing
キーワード
主題Scheme Other
主題 accelerometer
資源タイプ
資源 http://purl.org/coar/resource_type/c_6501
タイプ journal article
アクセス権
アクセス権URI open access
その他のタイトル
その他のタイトル LONGITUDINAL TRUE PROFILE ESTIMATION BY A MOBILE PROFILOMETER FOR EXPRESSWAYS
著者 富山, 和也

× 富山, 和也

WEKO 44826
KAKEN 70589580

ja 富山, 和也

Search repository
川村, 彰

× 川村, 彰

WEKO 44825
KAKEN 30149893

ja 川村, 彰

Search repository
大廣, 智則

× 大廣, 智則

WEKO 42556

ja 大廣, 智則

Search repository
著者別名
姓名
姓名 TOMIYAMA, Kazuya
言語 en
著者別名
姓名
姓名 KAWAMURA, Akira
言語 en
著者別名
姓名
姓名 OHIRO, Tomonori
言語 en
抄録
内容記述タイプ Abstract
内容記述 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.
書誌情報 土木学会論文集E1(舗装工学)

巻 70, 号 3, p. I_41-I_48, 発行日 2014
DOI
関連識別子
識別子タイプ DOI
関連識別子 http://doi.org/10.2208/jscejpe.70.I_41
権利
権利情報 c 2014 公益社団法人 土木学会
出版者
出版者 公益社団法人 土木学会
著者版フラグ
値 publisher
出版タイプ
出版タイプ VoR
出版タイプResource http://purl.org/coar/version/c_970fb48d4fbd8a85
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