Design of maximally decimated near-perfect-reconstruction DFT filter banks with allpass-based analysis filters

Enisa Galijašević, Jörg Kliwer

Research output: Contribution to journalConference articlepeer-review

Abstract

In this paper we address a maximally decimated IIR DFT filter bank, where all polyphase components are replaced by allpass filters. Generally, a perfect reconstruction (PR) solution leads to a synthesis filter bank with unstable subband filters. As a novelty we show that by using closed-form FIR phase compensation filters as polyphase components in the synthesis filter bank we obtain a stable near-PR analysis-synthesis system. Furthermore, the remaining linear and aliasing distortions only depend on the overall system delay, and can be made arbitrarily small.

Original languageEnglish (US)
Pages (from-to)577-581
Number of pages5
JournalConference Record of the Asilomar Conference on Signals, Systems and Computers
Volume1
StatePublished - Dec 1 2001
Externally publishedYes
Event35th Asilomar Conference on Signals, Systems and Computers - Pacific Grove, CA, United States
Duration: Nov 4 2001Nov 7 2001

All Science Journal Classification (ASJC) codes

  • Signal Processing
  • Computer Networks and Communications

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