A geometrical analysis of buried flat-plates on ground penetrating radar images

We proposed a synthetic aperture GPR (Ground Penetration Radar) for buried flat-plates. The geometrical conditions of the flat-plates, i.e., the length, the inclination angles, the horizontal positions, and the buried depth are estimated by using a nonlinear least-squares method: the geometrical model-calculated propagation times are fit to the observed ones at all the antenna positions. We carried out some survey experiments to inspect a metallic plate being buried in soil medium, and, furthermore, compared the proposed algorithm with a visual observation-based method. As a result, we confirmed the effectiveness of the proposed algorithm.

[1]  Hiroyoshi Yamada,et al.  Classification of Target Buried in the Underground by Radar Polarimetry , 1999 .

[2]  Ying Wang,et al.  Measurement of Layer Thickness and Permittivity Using a New Multilayer Model From GPR Data , 2007, IEEE Transactions on Geoscience and Remote Sensing.

[3]  Akira Kawanaka,et al.  Radar imaging of underground pipes by automated estimation of velocity distribution versus depth , 1998 .

[4]  Toru Kaneko Radar Image Processing for Locating Underground Linear Objects , 1990, MVA.

[5]  Hiroyoshi Yamada,et al.  Three-Dimensional Fully Polarimetric Imaging in Snowpack by a Synthetic Aperture FM-CW Radar , 2000 .

[6]  Motoyuki Sato,et al.  Recent Progress in Borehole Radars and Ground Penetrating Radars in Japan (Special Issue on Radar Technology) , 1993 .

[7]  A. Devaney Geophysical Diffraction Tomography , 1984, IEEE Transactions on Geoscience and Remote Sensing.

[8]  Richard G. Plumb,et al.  A matched-filter-based reverse-time migration algorithm for ground-penetrating radar data , 2001, IEEE Trans. Geosci. Remote. Sens..

[9]  Takuya Sakamoto,et al.  A Robust and Fast Imaging Algorithm with an Envelope of Circles for UWB Pulse Radars , 2007, IEICE Trans. Commun..

[10]  Ikuo Arai,et al.  Advance on Underground Radars , 1991 .

[11]  Yoshihiko Nomura,et al.  Buried Pipe Radius Estimation from Observed Image by GPR and Estimation Error Analysis , 2008 .

[12]  Motoyuki Sato,et al.  Parametric Inversion Technique for Location of Cylindrical Structures by Cross-Hole Measurements , 2006, IEEE Transactions on Geoscience and Remote Sensing.