• DocumentCode
    3542116
  • Title

    Design of wavelet filters based on digital complex allpass filters

  • Author

    Vazquez, Alfonso Fernandez ; Dolecek, XGordana Jovanovic

  • Author_Institution
    Dept. of Electron., INAOE, Puebla, Mexico
  • fYear
    2005
  • fDate
    23-26 May 2005
  • Firstpage
    840
  • Abstract
    A method for designing IIR complex wavelet filters based on complex allpass filters, that are maximally flat at ω=0 is presented. This allpass filter is obtained from a complex all-pole filter with a desired flatness at ω=0. The parameters of the complex allpass filter design are the order of the filter, N, the degree of flatness, K, and the phase, φ0, at ω=0. The real and imaginary parts of the filter coefficients are computed from the proposed iterative equations.
  • Keywords
    IIR filters; all-pass filters; filtering theory; iterative methods; poles and zeros; wavelet transforms; IIR complex wavelet filters; IIR filters; all-pole filter; digital complex allpass filters; filter coefficients; flatness; imaginary part; iterative equations; phase; real part; wavelet filter design; Design methodology; Digital filters; Equations; Finite impulse response filter; Frequency; IIR filters; Image processing; Nonlinear filters; Propagation delay; Proposals;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Circuits and Systems, 2005. ISCAS 2005. IEEE International Symposium on
  • Print_ISBN
    0-7803-8834-8
  • Type

    conf

  • DOI
    10.1109/ISCAS.2005.1464719
  • Filename
    1464719
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=3542116