• DocumentCode
    699137
  • Title

    Finite word length analysis of the radix-22 FFT

  • Author

    Rey, Hernan G. ; Galarza, Cecilia

  • Author_Institution
    Fac. de Ing., Univ. de Buenos Aires, Buenos Aires, Argentina
  • fYear
    2004
  • fDate
    6-10 Sept. 2004
  • Firstpage
    1505
  • Lastpage
    1508
  • Abstract
    In this paper, we analyze the quantization error effects of the radix-22 FFT algorithm. We propose per tone models for the error power. This is a different approach from the common choice of a maximum or mean value over the spectrum. In particular, we treat three different errors: due to input quantization, due to coefficient quantization and due to quantization after a multiplication. This analysis is applied to a DMT scheme. Simulation results agree with the theoretical predictions.
  • Keywords
    fast Fourier transforms; quantisation (signal); signal processing; DMT scheme; discrete multitone model; finite word length analysis; per tone model; quantization error effect; radix-22 FFT algorithm; signal processing; Abstracts; Transforms;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Signal Processing Conference, 2004 12th European
  • Conference_Location
    Vienna
  • Print_ISBN
    978-320-0001-65-7
  • Type

    conf

  • Filename
    7079667
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=699137