Enhancement of Lamb Wave Imaging Resolution by Step Pulse Excitation and Prewarping

Figure 11

Compensation effect of the prewarping method. (a) The broadband damage scattering signal of . (b) Envelopes of the response for burst wave at selected central frequencies. (c) The generated prewarping signal with the central frequency of 100 kHz. (d) Compensation result of the prewarping method.

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