Table 5

The hyperparameter sensitivity verification analysis for the GES2N is presented. Table 1 is used as the basis, with a check mark (✓) indicating alignment between the results in Figure 5 and Table 1.

# HP Measurements Comment
1 2 3
1 D M~ges2n is proportional to D, which makes sense. Meas. 3’s SES, obtained using D = 16, contains prominent fault components (e.g., when compared to D = 256), but also an increased noise floor. The increased noise floor results in a lower M~ges2n.
2 CORF The signal and noise components’ amplitudes decreased when the CORF increased. Still, the noise components decreased more (i.e., higher sensitivity), resulting in an overall increase in M~ges2n when CORF 4. Decreasing the CORF did not affect the results, highlighting that the baseline Δα is already in the saturation region.
3 Δαb M~ges2n is proportional to Δαb. No extraneous components are enhanced when increasing Δαb. If Δαb is too small, some fault components manifest in the noise indicator. This is penalised by the optimiser, which results in a smaller M~ges2n.
4 TEP Increasing the TEP results in a lower M~ges2n and a worse SES (for Meas. 2 and 3).
5 Nh The M~ges2n is generally proportional to Nh and only unaffected by the perturbations in a few cases.
6 ws Meas. 1 has insufficient information to conclude. Meas. 2 and 3: H+ results in more prominent higher harmonics. The lower harmonics are more prominent, and the higher harmonics are absent for H-. For H1 only the first few harmonics are prominent (fewer than H-). The first few harmonics are prominent for H1:5, with the sixth and higher harmonics attenuated.

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