Consideration of Oblique Incidence in 3-D Imaging of a Planar Interface With a Circular Dipole Array in an Air-Filled Borehole

摘要: We consider the effects of oblique incidence a wave on creation 3-D image planar interface with an array-type directional borehole radar. In this study, we focus situation where radar probe is close to interface. such circumstances, reflected from may be incident receiving array antenna at very steep elevation angles. As result, cause differences in arrival times elements, and consequently some errors emerge imaging Observing time differences, present algorithm compensate those creating Computer simulations predict that occur when circular dipole air-filled rock. Numerical show our proposed generates around exact position, whereas conventional methods produce spurious images opposite correct position (i.e., out by 180°). then applied method analyze waves real-world fault A could successfully created, which was not possible using method.