3206 地中レーダによる地下断面映像からの埋設管径推定法(J25-1 メカニカルシステムとその知能化(1),J25 メカニカルシステムとその知能化)

概要

論文の詳細を見る
It is a difficult task to extract the shape information of buried objects such as the circular diameters of buried pipes from GPR image, although the pipes distort the hyperbolic patterns of the GPR images: the curvature around the top of the hyperbola reflect the pipe diameters. In this paper, considering the characteristic of GPR images, the authors proposed a novel algorithm for pipe diameter estimation using a nonlinear least-squares method. The propagation time measurement errors were taken into consideration as the sources of error, and the pipe diameter estimation error was related to the magnitudes of the error sources. The effectiveness of the proposed diameter estimation method was confirmed through a practical experiment using various diameters of buried pipes.
社団法人日本機械学会の論文
2007-09-07