Fig. 6.
Normalized singular values for all 2500 modes generated by the SVD of the eigenmode response matrix Reigen. All modes that have a normalized singular value below 6 × 10−2 are suppressed by the Tikhonov regularization. In implementing modal gain binning a gain gmodal = 1 was given to the first 150. All modes above mode 150 were given a modal gain gmodal = 0.01.
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