Research Article

A Propagation Model for Subsurface and Through-Wall Imaging Applications under the Frequency Dispersion Perspective

Figure 12

Frequency carrier shifting estimation: (a) soil, (b) dry concrete (0.2%), and (c) wet concrete (12%).
787910.fig.0012a
(a)
787910.fig.0012b
(b)
787910.fig.0012c
(c)