A unified approach to transform-based FIR filter-banks with special regard to perfect reconstruction systems

  • Authors:

  • Rolf Gluth

  • Affiliations:

  • Deutsche Aerospace, Ulm, Germany

  • Venue:
  • ICASSP'93 Proceedings of the 1993 IEEE international conference on Acoustics, speech, and signal processing: digital speech processing - Volume III
  • Year:
  • 1993

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Abstract

A uniform description of transform-based FIR filter-banks in general is presented. Both the derivation of the channel impulse responses and the basic principles to design new efficient implementations are addressed. It is shown that the overall properties of the corresponding analysis-synthesis systems can be described and compared that way without explicit knowledge about the transforms used as kernel. The presented methods are then used to classify systems of current interest and to extend previously known results on perfect reconstruction FIR filter-banks to a wider range of systems. Finally it is shown, how perfect reconstruction systems can be built around any regular transform.