1.65
1.32
0.99
Figure 40. ML wavenumber esti-
0.66
mate at 11 Hz for waveforms
Figure 2729
shown in Figure 35: Blackman
0.33
Figure 31
taper, one block, segment length =
Figure 33
512. Spectra give a source direc-
tion of 25 and velocity of 219
0.00
Figure 3641
m s1.
0.33
0.99
1.32
1.65
1.65
1.32
0.99
0.33
0.00
0.33
0.66
0.99
1.32
1.65
EastWest Component of Wavenumber (m1 )
Linear Grey Scale: White Regions = 3 dB
Black Regions = 42 dB
1.65
1.32
0.99
0.66
Figure 41. ML wavenumber esti-
Figure 2729
mate at 11 Hz for waveforms
0.33
Figure 31
shown in Figure 35: boxcar taper,
Figure 33
one block, segment length = 512.
Beam is unfocused.
0.00
Figure 3641
0.33
0.99
1.32
1.65
1.65
1.32
0.99
0.33
0.00
0.33
0.66
0.99
1.32
1.65
EastWest Component of Wavenumber (m1 )
Linear Grey Scale: White Regions = 3 dB
Black Regions = 42 dB
32
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