1.65
1.32
0.99
0.66
Figure 38. ML wavenumber esti-
Figure 2729
mate at 11 Hz for waveforms shown
0.33
Figure 31
in Figure 35: Blackman taper, three
Figure 33
blocks (at 53% overlap), segment
0.00
Figure 3641
length = 1024; produces a source
direction of 258 with a velocity of
0.33
219 m s1.
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
Figure 39. ML wavenumber esti-
mate at 11 Hz for waveforms shown
0.66
in Figure 35: boxcar taper, three
Figure 2729
blocks (at 53% overlap), segment
0.33
Figure 31
length = 1024; produces a source
direction of 255 with a velocity of
Figure 33
271 m s1.
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
31
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