METHOD AND DEVICE FOR PROCESSING MAGNETOSTRICTIVE GUIDED WAVE DETECTION SIGNALS
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Aug 27, 2017
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Dec 24, 2013
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A method for denoising magnetostrictive guided wave detection signals to improve detection accuracy. The method includes forming a matrix A by using the signals; performing a singular value decomposition on the matrix A to obtain a singular matrix B including a plurality of eigenvalues; setting eigenvalues in the singular matrix B that are smaller than the median to zero to obtain a matrix C; performing an inverse transformation of the singular value decomposition on the matrix C to obtain a matrix D; and determining the denoised signals according to the matrix D.
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