Perfect reconstruction filter banks with rational sampling rate changes

Authors:
J. Kovacevic;M. Vetterli
Affiliations:
Columbia Univ., New York, NY, USA;Columbia Univ., New York, NY, USA
Venue:
ICASSP '91 Proceedings of the Acoustics, Speech, and Signal Processing, 1991. ICASSP-91., 1991 International Conference
Year:
1991

Citing 0
Cited 2

Orthonormal FBs with rational sampling factors and oversampled DFT-modulated FBs: a connection and filter design

IEEE Transactions on Signal Processing
Wavelet regularity of iterated filter banks with rational sampling changes

ICASSP'93 Proceedings of the 1993 IEEE international conference on Acoustics, speech, and signal processing: digital speech processing - Volume III

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Abstract

The authors present a general, direct method for designing perfect reconstruction filter banks with rational sampling rate changes. Such filter banks have N branches, each one having a sampling factor of p/sub i//q/sub i/ and their sum equal to one. A design example showing the advantage of using the direct over the indirect method is given. Due to recent results pointing to the relationship between filter banks and wavelet theory, the regularity question is addressed as well, and a regular filter is shown for a dilation factor of 3/2.