@techreport{oai:jaxa.repo.nii.ac.jp:00045296,
 author = {山根, 皓三郎 and 外崎, 得雄 and YAMANE, Kosaburo and SOTOZAKI, Tokuo},
 month = {Oct},
 note = {In this paper, attention is focused on a PSD method in order to evaluate runway roughness from the standpoint of airplane loads, and a procedure for estimating runway spectra is examined. It is shown that the low order trend (long wavelength component) included in a runway profile can seriously impair the estimated spectra, and therefore, a simple method to remove this trend is obtained. Next, power spectra of sixteen commercial runways are estimated, including the spectra of symmetric and anti-symmetric components between two tracks, to provide airplane design data on ground loads. Comparing the runway spectra obtained before and after overlay repair of runway surface, it is shown that the power spectral presentation is an effective method to evaluate runway roughness., 資料番号: NALTR1037000, レポート番号: NAL TR-1037},
 title = {Estimation of Power Spectral Density of Runway Roughness},
 year = {1989}
}