DOA Estimation of an Inclined Conducting Cylinder with a Dipole Array Antenna in a Borehole

We investigate the influence of a horizontally polarized wave's oblique incidence on the direction of arrival (DOA) estimation with a dipole array antenna in a borehole. According to a computer simulation, the horizontally polarized wave component of the reflected wave from the conducting cylinder influences the wave's azimuth angle estimation. We conducted a field experiment in soil with a similar situation to the computer simulation. The experimental results confirmed the phenomena predicted by the computer simulation.