Study on the Damage Diagnosis of Ancient Wood Structure in Tianshui under Traffic Excitation

Table 4

The cost function values and computation time for different decomposition levels.

Decomposition level i	1	2	3	4
Sl(Ej) (p = 1.5)	9.881e^4	9.829e^4	9.775e^4	9.705e^4
Operation time (s)	0.022	0.045	0.060	0.104
Decomposition level i	5	6	7	8
Sl(Ej) (p = 1.5)	9.576e^4	9.337e^4	8.849e^4	7.187e^4
Operation time (s)	0.204	0.392	0.735	1.583