Title :
Comments on "A two-stage representation of DFT and its applications" by O.K. Ersoy
Author :
WU, JA-LING ; HSU, CHAU-YUN
Author_Institution :
Dept. of Comput. Sci. & Inf. Eng., Nat. Taiwan Univ., Taipei, Taiwan
Abstract :
In the above named paper (ibid., vol.ASSP-35, p.825-831), Ersoy developed a two-stage representation in terms of processing and postprocessing of a discrete Fourier transform (DFT) by vector transformation of sines and cosines into new basis functions using Mobius inversion of number theory. Three corrections of Ersoy´s work are printed out.<>
Keywords :
fast Fourier transforms; number theory; signal processing; vectors; DFT; Mobius inversion; cosines; discrete Fourier transform; number theory; postprocessing; sines; vector transformation; Frequency domain analysis; Hidden Markov models; Lakes; Moon; Speech recognition; Sun; Telecommunications; Tin; Vector quantization; Vocabulary;
Journal_Title :
Acoustics, Speech and Signal Processing, IEEE Transactions on
