Table 3: Normalized central frequencies with different K values.

Number of modesNormalized central frequencies

20.22560.0907
30.29780.22750.0999
40.2471 0.1738 0.0860 0.0127
50.30660.28340.22710.11480.0525
60.30720.28540.23640.21420.11390.0519
70.31700.29810.27570.22700.12420.09820.0493
80.31780.29900.27770.23630.21470.12310.09750.0492
90.40220.31330.29700.27680.23630.21460.12300.0975 0.0492