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| Paper: | SPTM-P11.1 |
| 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: |
LINEAR PHASE OVERSAMPLED FILTER BANKS |
| Authors: |
Sidney Burrus; Rice University | | |
| | Ricardo von Borries; Rice University | | |
| Abstract: |
This paper introduces a factorization for the design of oversampled filter banks with linear phase and complex-valued coefficients. Our approach is based on the design of rectangular paraunitary polyphase matrices and gives a general formulation for perfect reconstruction filter banks with uniform sampling in the subbands, critically sampled or oversampled, and linear phase filters with real- or complex-valued coefficients. By using a framework that is not restricted to modulation of a prototype window, as in oversampled modulated filter banks, we are able to increase the design freedom and to allow the design of non uniform bandwidth oversampled filter banks. |
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