Perfect Reconstruction IIR Digital Filter Banks Supporting Nonexpansive Linear Signal Extensions

Sezen U.

IEEE TRANSACTIONS ON SIGNAL PROCESSING, vol.57, no.6, pp.2140-2150, 2009 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 57 Issue: 6
  • Publication Date: 2009
  • Doi Number: 10.1109/tsp.2009.2016228
  • Title of Journal : IEEE TRANSACTIONS ON SIGNAL PROCESSING
  • Page Numbers: pp.2140-2150

Abstract

In this paper, perfect reconstruction polyphase infinite impulse response (IIR) filter banks involving causal and anticausal inverses are examined for finite-length signals. First, a novel and efficient nonexpansive perfect reconstruction algorithm based on the state-space implementation is presented. Then the proposed method is extended to support linear signal extensions at the boundaries in a nonexpansive manner. The powerfulness of the proposed algorithm is demonstrated with the image compression results.