Short-Time DOA-Based 3-D Imaging of Complex Subsurface Targets Using Array-Based Borehole Radar Observations
Characterizing the spatial distribution of subsurface geological structures is essential in engineering geology, geophysics, and related fields. Directional borehole radar (DBR), an array-based extension of conventional borehole radar, enables 3-D imaging within a single borehole for subsurface characterization. Howeve...