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An lp-norm approach to robust probabilistic inspection of plate-like structure defects with guided waves

In this paper, an lp-norm approach to robust probabilistic inspection of plate-like structure defects with guided waves is proposed. Analytical results show that the more the outliers in the measurements, the smaller p is preferred. Moreover, the relationship between our and the conventional signal difference coefficient (SDC) is also provided. While the experimental results verify the analytical ones, it is also shown that our approach has a good tolerance for impulsive noise interference, namely the unexpected artifacts in the reconstructed tomographic image caused by the impulsive interference are eliminated.