Polyphase analysis of subband adaptive filters

S. Weiss, R. W. Stewart, M. Harteneck, A. Stenger

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

1 Citation (Scopus)


Based on a polyphase analysis of a subband adaptive filter (SAF) system, it is possible to calculate the optimum subband impulse responses to which the SAF system will converge. We give some insight into how these optimum impulse responses are calculated, and discuss two applications of our technique. Firstly, the performance limitations of an SAF system can be explored with respect to the minimum mean square error performance. Secondly, fullband impulse responses can be correctly projected into the subband domain, which is required for example for translating constraints for subband adaptive beamforming. Examples for both applications are presented.
Original languageEnglish
Title of host publicationConference Record of the Thirty-Third Asilomar Conference on Signals, Systems, and Computers, 1999
Place of PublicationNew York
Number of pages5
ISBN (Print)0780357000
Publication statusPublished - 27 Oct 1999
Event33rd Asilomar Conference on Signals, Systems, and Computers - Pacific Grove, CA, United States
Duration: 24 Oct 199927 Oct 1999

Publication series

NameConference Record - Asilomar Conference on Signals, Systems and Computers
ISSN (Print)1058-6393


Conference33rd Asilomar Conference on Signals, Systems, and Computers
Country/TerritoryUnited States
CityPacific Grove, CA


  • acoustics
  • adaptive filters
  • array signal processing
  • filter bank
  • error analysis
  • polyphase analysis
  • subband adaptive filters


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