| 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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