Research Article

Ultrasonic Flaw Detection and Imaging through Reverberant Layers via Subspace Analysis and Projection

Figure 2

Comparison of reverberation removal techniques. (a) Simulated flaw echo and its multipaths measured through the layer. (b) Flaw echoes added to a real reverberation measurement. (c) Reverberation removal via subspace projection. (d) Reverberation removal via background subtraction. (e) Reverberation removal via predictive deconvolution.
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(a)
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(b)
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(c)
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(d)
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(e)