Inversion Model of GPR Imaging Characteristics of Point Objects and Fracture Detection of Heritage Building

Figure 4

(a–h) GPR imaging of different depth (h = 0.05 m, 0.10 m, 0.20 m, 0.30 m, 0.40 m, 0.50 m, and 0.60 m).

(a)

(b)

(c)

(d)

(e)

(f)

(g)

(h)