• DocumentCode
    1099059
  • Title

    Fourfold rotational symmetry in two-dimensional functions

  • Author

    Rajan, P. Karivaratha ; Reddy, Harnatha C. ; Swamy, M.N.S.

  • Author_Institution
    North Dakota State University, Fargo, ND
  • Volume
    30
  • Issue
    3
  • fYear
    1982
  • fDate
    6/1/1982 12:00:00 AM
  • Firstpage
    488
  • Lastpage
    499
  • Abstract
    The presence of various types of symmetry in the frequency responses of a two-dimensional filter function reflects as constraints on its coefficients. In this paper, such constraints are derived for two-dimensional analog and digital transfer functions so that the magnitude functions of the frequency responses of these transfer functions possess fourfold rotational symmetry. The relationship between fourfold rotational symmetry and quadrantal, diagonal, and octagonal symmetries is also discussed.
  • Keywords
    Cepstral analysis; Design methodology; Digital filters; Finite impulse response filter; Frequency; IIR filters; Neodymium; Polynomials; Transfer functions; Two dimensional displays;
  • fLanguage
    English
  • Journal_Title
    Acoustics, Speech and Signal Processing, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0096-3518
  • Type

    jour

  • DOI
    10.1109/TASSP.1982.1163913
  • Filename
    1163913
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1099059