A Method for Cavity Scale Estimation Based on Ground-Penetrating Radar (GPR) Explorations: An Experimental Study

Figure 6

Measurement example of scale (soil depth and width) by the cavity waveforms. (a) Depth: 0.9 m and width: 1.0 m. (b) Depth: 0.3 m and width: 0.5 m.

(a)

(b)