Research Article

Structural Health Monitoring of Steel Pipes under Different Boundary Conditions and Choice of Signal Processing Techniques

Figure 6

Comparison of experimental signals for defective and defect-free pipes using different wavelet functions with a scale of 64 for (a) db4, (b) sym4, (c) coif2, (d) gauss1, (e) Meyer, and (f) Mexican hat wavelet functions.
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(a)
813281.fig.006b
(b)
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(c)
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(d)
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(e)
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(f)