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| Paper: | SPTM-P11.7 |
| Session: | Filter Banks and Subband Coding |
| Time: | Friday, May 21, 09:30 - 11:30 |
| Presentation: |
Poster |
| Topic: |
Signal Processing Theory and Methods: Multi-rate Signal Processing & Wavelets |
| Title: |
DYADIC-BASED STRUCTURE FOR REGULAR BIORTHOGONAL FILTER BANKS WITH LINEAR PHASE |
| Authors: |
Ying-Jui Chen; Massachusetts Institute of Technology | | |
| | Soontorn Oraintara; University of Texas, Arlington | | |
| | Kevin Amaratunga; Massachusetts Institute of Technology | | |
| Abstract: |
The purpose of this paper is twofold: one is to establish a framework for general biorthogonal filter banks (BOFBs) with structural regularity; the other is to identify the connection between the general structure used here and the one commonly used for linear-phase biorthogonal filter banks (a.k.a. generalized lapped biorthogonal transform or GLBT). The latter also leads naturally to the same reduced number of free parameters as GLBT. We first revisit a minimal structure of BOFBs using order-one dyadic-based building blocks, by which BOFBs with length constraint can be designed. Conditions for filter bank regularity on the dyadic-based structure are derived and specialized to the case of GLBT. Design examples are presented. |
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