Forward Modeling and Model Test of Ground-Penetrating Radar toward Typical Asphalt Pavement Distresses

Table 1

Parameters of GPR forward modelling.

Parameters	Value
Model size (m)	1 × 0.6
Space grid step size (m)	0.002 × 0.002
Time window (ns)	20
Initial transmitting antenna coordinate (m)	(0.02, 0.58)
Initial receiving antenna coordinate (m)	(0.17, 0.58)
Antenna step length (m)	0.01
Incentive source type	Ricker
Excitation source frequency (MHz)	900