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Published 20 hours ago • verified publisher icon PTB-M4D

mask-parameter in GUM_iDFT

Open bruns01 opened this issue 8 years ago • 1 comments

This is a (nasty) side effect of the introduction of the mask parameter for GUM_DFT. For example: If the DC (0 Hz) component of a signal was removed by masking it "0" in GUM_DFT then the argument to a subsequent GUM_iDFT is lacking the first real and first imaginary component without knowing about that. This leads to an erroneous (distorted) output. The "0"-masked components could be zero-padded in GUM_iDFT for one possible solution.

bruns01 avatar Dec 09 '16 16:12 bruns01

@BjoernLudwigPTB develop plan for how to handle masks from GUM_DFT to its inverse GUM_iDFT.

eichstaedtPTB avatar Jul 16 '19 12:07 eichstaedtPTB