Research Article
Online Modal Identification of Concrete Dams Using the Subspace Tracking-Based Method
Figure 7
Frequency (f1∼f4) and damping ratio (ξ1∼ξ4) identification results of simulation case 2 (SNR = 40 dB): identification results for (a) natural frequencies and (b) damping ratios.
| (a) |
| (b) |