• DocumentCode
    295145
  • Title

    Oversampled modulated filter banks and tight Gabor frames in l2(Z)

  • Author

    Cvetkovic, Zoran

  • Author_Institution
    Dept. of Electr. Eng. & Comput. Sci., California Univ., Berkeley, CA
  • Volume
    2
  • fYear
    1995
  • fDate
    9-12 May 1995
  • Firstpage
    1456
  • Abstract
    The subject of this study is paraunitary modulated filter banks. A factorization of the polyphase matrices of these filter banks, which is described, gives complete characterization of tight Gabor frames in l 2(Z), with arbitrary rational oversampling ratios. Tight Gabor frames, being less constrained than orthogonal bases, allow for filter bank designs with good localization in both time and frequency
  • Keywords
    band-pass filters; filtering theory; matrix algebra; modulation; signal sampling; filter bank designs; frequency localization; oversampled modulated filter banks; paraunitary modulated filter banks; polyphase matrices factorization; rational oversampling ratios; tight Gabor frames; time localization; Channel bank filters; Filter bank; Gabor filters; Matrix decomposition; Nonlinear filters; Signal analysis; Time frequency analysis;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Acoustics, Speech, and Signal Processing, 1995. ICASSP-95., 1995 International Conference on
  • Conference_Location
    Detroit, MI
  • ISSN
    1520-6149
  • Print_ISBN
    0-7803-2431-5
  • Type

    conf

  • DOI
    10.1109/ICASSP.1995.480558
  • Filename
    480558
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=295145