1.0
0.8
Incident Wavelet = Ideal Monocycle
Local Wavelet Frequency = 400 MHz
0.6
0.4
0.2
0.0
0.2
0.4
0.6
0.8
1.0
0
10
20
30
40
50
Time (ns)
1.0
0.8
Incident Wavelet = GPR Model Waveform
Local Wavelet Frequency = 400 MHz
0.6
0.4
0.2
0.0
0.2
0.4
0.6
0.8
1.0
0
10
20
30
40
50
Time (ns)
a. Incident waveforms.
Figure 12. Model 400-MHz wavelets before and after round-trip propagation within
1 m of ground characterized by the soil parameters measured. The wavelets re-
flect from an interface for which R = 1 (eq. 6), which only reverses the phase of
the wavelets so that all wavelet distortion and attenuation are due to propagation.
17
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