• DocumentCode
    388173
  • Title

    An algorithm for testing stability of two-dimensional digital recursive filters

  • Author

    Shaw, G.A.

  • Author_Institution
    Georgia Institute of Technology, Atlanta, Georgia
  • Volume
    3
  • fYear
    1978
  • fDate
    28581
  • Firstpage
    769
  • Lastpage
    772
  • Abstract
    The Principle of the Argument is applied to test the stability of a 2-D recursive filter with denominator B(Z1,Z2). This approach to stability testing leads to an efficient numerical implementation requiring only the computation of a 2-D DFT, followed by phase unwrapping and a search for zeros of B(e^{j\\omega _{1}},e^{j\\omega _{2}}) . In the absence of zeros of B(e^{j\\omega _{1}},e^{j\\omega _{2}}) , stability is assured if B(Z1,1) and B(1,z2) are both minimum phase.
  • Keywords
    Digital filters; Phased arrays; Polynomials; Stability criteria; System testing;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Acoustics, Speech, and Signal Processing, IEEE International Conference on ICASSP '78.
  • Type

    conf

  • DOI
    10.1109/ICASSP.1978.1170518
  • Filename
    1170518
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=388173