Research Article

Application of Neuro-Wavelet Algorithm in Ultrasonic-Phased Array Nondestructive Testing of Polyethylene Pipelines

Table 1

Fi matrix.

14.5693068647.039960937514.7525324515.907304687520.7914589548.6166406250
22.72826585910.03859375021.1026029008.177343750024.80836612610.330781250
18.6826563818.101250000023.3283532758.691875000025.17530654511.230625000
34.30275203215.23000000026.90966927912.00500000042.17915535620.607500000
30.98133031815.34000000035.93160028417.53000000054.86926611134.900000000