Wavelet denosiing of powder diffraction patterns

摘要

Four powder diffraction patterns taken under different experimental conditions were denoised by a new method, i.e., thresholding of wavelet coefficients. The patterns were transformed by discrete wavelet transform applying Coifiet wavelet function. WLS refinements of peaks' positions, FWHM, and intensity showed that wavelet denoising, in contrast to previously used polynomial Smoothing, did not shift the maxima and preserved peak and integrated intensities.