A comment on the paper by Ciarletti, V., et al. (2015), bistatic sounding of the deep subsurface with a ground penetrating radar-Experimental validation

Ciarletti, V., et al., 2015 describe an experiment to prepare for a future landing on Mars that will use a bistatic ground-penetrating radar (GPR) with movable stations to detect subsurface layers. A simplified model of the proposed system based on ray optics is offered and a qualitative discussion is given of how its results might be softened by wave theory.