A Bayesian Structural Modal Updating Method Based on Sparse Grid and Ensemble Kalman Filter

Table 2

MPV and variance of the updated parameters in the shaking table experiment.

Working condition	Variables	Reference data	Kalman filter		Proposed method
			MPV	Variance	MPV	Variance
WC1	θx1	0.9079	0.8756	0.1369	0.8946	0.1034
	θx2	0.9197	0.9382	0.1427	0.9315	0.1189
	θx3	0.9424	0.9324	0.1307	0.9558	0.1068
WC2	θy1	0.9147	0.9474	0.1467	0.9396	0.0967
	θy2	0.9428	0.9287	0.1512	0.9577	0.1012
	θy3	0.8926	0.9245	0.1447	0.9189	0.0987