Matlab: digitrevorder is useful for pre-ordering a vector of filter coefficients for use in frequency-domain filtering algorithms, in which the fft and ifft transforms are computed without digit-reversed ordering for improved run-time efficiency.
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References in zbMATH (referenced in 1 article )
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- Popescu-Bodorin, Nicolaie: Bit Reversal through direct Fourier permutation method and Vectorial Digit Reversal generalization (2008)