J1601-1-2 地中レーダを用いた平板の傾きと長さの推定([J1601-1]メカニカルシステムシステムの知能化)

概要

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This paper describes a method of estimating the angle of inclination and length of the flat plates by Ground Penetrating Radar (GPR) where the flat plates is assumed to be buried tilted in the scanning direction of the GPR. In the estimation, we use two information of both the propagation time and the intensity of the first peak of the reflected wave. Especially, to estimate the angle of inclination, we compare the propagation time derived from a model of the geometric position and that from the scanned data. Then, we estimate the length of the plates based on the intensity of the scanned data. Since the intensity is strongly influenced reflection by the scattering cross section, it is difficult to make an analytical model with the absolute intensities. Therefore, we made a model of relative intensity at both ends of the buried plates to those at the center of the plates.
2010-09-04