Frame bounds for biorthogonal cosine-modulated filter banks

  • Alfred Mertins
  • Published 2002 in
    2002 IEEE International Conference on Acoustics…

Abstract

In this paper, we derive explicit expressions for the eigenvalues of the frame operator for cosine-modulated filter. banks. The filter banks may be critically sampled or oversampled by an integer factor. The analysis of low-delay, biorthogonal filter banks shows that prototypes solely designed to minimize the stopband energy may lead to wide open frames and… (More)
DOI: 10.1109/ICASSP.2002.5744026

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