Table 3 Oscillation modes results of three typical model order selection criteria
From: New algorithm for mode shape estimation based on ambient signals considering model order selection
Criterion | Model order | Mode I | Mode II | ||
|---|---|---|---|---|---|
Frequency (Hz) | Damping ratio (%) | Frequency (Hz) | Damping ratio (%) | ||
AIC | (16,15) | 0.774 | 1.702 | 0.959 | 4.905 |
BIC | (12,11) | 0.776 | 1.270 | 0.963 | 4.549 |
φ 0.3 | (11,9) | 0.774 | 1.553 | 1.016 | 5.699 |
φ 0.4 | (8,7) | 0.773 | 1.541 | 1.089 | 8.858 |
φ 0.5 | (7,5) | 0.776 | 1.819 | 1.127 | 10.749 |