3D Migration Depth Focus Velocity Analysis of Hand-Held Ground Penetrating Radar

Hand-held ground penetrating radar (GPR) systems have been widely applied to landmine detections during recent decades. The accuracy of an imaging result by migration for a hand-held GPR is strongly related the subsurface velocity distribution obtained from multi offset data. For shallow targets like landmines, hyperbolas are usually not distinct in 2D slices and masked surface reflections. In this article, we propose 3D depth focus analysis method GPRs estimate background subsurface. This performed based on images generated migrations. objective function defined as proportion target slice containing target. After migrating radargram with different velocities, velocity, which minimizes function, can be determined comparing results using velocities. To test proposed method, apply procedure experimental data collected advanced system (ALIS) laboratory. Subsequently, obtained, diffraction achieves high quality. accurate position optimal image.