Table 1: Parameters of the representative Doppler spectra.

Example (Hz) mean (dB) (dB)

A651.110.0438.0610.020.891.57
B821.820.0049.167.460.706.39
C468.290.0929.965.180.930.22
D241.120.3140.320.530.860.13
E256.450.1040.660.550.820.16
F473.870.0344.601.130.900.06
G247.960.0640.470.610.880.02