• DocumentCode
    888229
  • Title

    Direct design of approximately linear phase (ALP) 2-D IIR digital filters

  • Author

    Anderson, M.S. ; Lawson, S.S.

  • Author_Institution
    Warwick Univ., Coventry, UK
  • Volume
    29
  • Issue
    9
  • fYear
    1993
  • fDate
    4/29/1993 12:00:00 AM
  • Firstpage
    804
  • Lastpage
    805
  • Abstract
    A fast design method is presented for approximately linear phase (ALP) 2-D IIR digital filters composed of a parallel connection of two allpass subfilters. The technique exploits the fact that the filter transform function depends on the phase of each subfilter. A closed form expression is derived for the phase and the filter coefficients of each subfilter are obtained by solving a set of overdetermined linear simultaneous equations.
  • Keywords
    filtering and prediction theory; two-dimensional digital filters; 2D filters; IIR digital filters; allpass subfilters; fast design method; filter coefficients; filter transform function; linear phase; overdetermined linear simultaneous equations; parallel connection;
  • fLanguage
    English
  • Journal_Title
    Electronics Letters
  • Publisher
    iet
  • ISSN
    0013-5194
  • Type

    jour

  • DOI
    10.1049/el:19930537
  • Filename
    211280
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=888229