Improved Continuous Wavelet Transform for Modal Parameter Identification of Long-Span Bridges

Figure 15

The amplitude logarithm and phase curves of the wavelet coefficients of measuring point no. 2 and no. 4 up to the third orders. (a). Measuring point 2, first order. (b). Measuring point 4, first order. (c). Measuring point 2, second order. (d). Measuring point 4, second order. (e). Measuring point 2, third order. (f). Measuring point 4, third order.

(a)

(b)

(c)

(d)

(e)

(f)