| Paper: | SPTM-P1.6 | ||
| Session: | Multi-rate Signal Processing and Wavelets | ||
| Time: | Tuesday, May 16, 10:30 - 12:30 | ||
| Presentation: | Poster | ||
| Topic: | Signal Processing Theory and Methods: Multi-rate Signal Processing and Wavelets | ||
| Title: | On Parameterizations of First-Order Unimodular Filter Banks | ||
| Authors: | Lu Gan, University of Newcastle, Australia | ||
| Abstract: | In this paper, two parameterization methods are proposed for $M$-channel, first-order unimodular filter banks. For such a system with Mcmillan degree of $\rho$, the proposed parameterizations can reduce the number of free parameters by $\rho^2$, compared with existing methods. At the sanme time, the resulting structures are still complete and minimal in the Mcmillan sense. Besides, perfect reconstruction, unimodular and the filter length constraints can be {\em all} structurally imposed. Moreover, the proposed structures offer \emph{unconstrained} optimizations in the design, which can be hardly achieved by existing methods. | ||
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