On the design of oversampled filter banks for channel coding

Research output: Contribution to conferencePaper

Abstract

Oversampled filter banks have been considered for channel coding, because they introduce redundancy into the subband representation of signals and permit more freedom in their design than critically sampled structures. In this paper, based on the knowledge of the channel noise's covariance matrix, we propose a constrained design for the synthesis filter bank in order to minimise the noise power in the decoded signal, subject to admitting perfect reconstruction. For the special case of paraunitary filter banks, a suboptimal iterative design is presented, which highlights the potential benefits of this approach, as demonstrated by a design example.
Original languageEnglish
Pages885-888
Number of pages4
Publication statusPublished - Sep 2004
Event12th European Signal Processing Conference - Vienna, Austria
Duration: 6 Sep 200410 Sep 2004

Conference

Conference12th European Signal Processing Conference
Abbreviated titleEUSIPCO 2004
CountryAustria
CityVienna
Period6/09/0410/09/04

Keywords

  • design
  • oversampled
  • filter banks
  • channel coding

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