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Design of Oversampled Uniform DFT Filter Banks with Reduced Inband Aliasing and Delay Constraints

Grbic, Nedelko LU ; de Haan, Jan-Mark; Claesson, Ingvar LU and Nordholm, Sven (2001) Sixth International Symposium on Signal Processing and its Applications (ISSPA 2001) In Sixth International, Symposium on IEEE Signal Processing and its Applications 1. p.104-107
Abstract
Subband adaptive filters have been proposed to avoid the drawbacks of slow convergence and high computational complexity associated with time domain adaptive filters for acoustic echo cancellation. Subband processing introduces transmission delays caused by the filter bank and signal degradations due to aliasing effects. One efficient way to reduce the aliasing effects is to allow a higher sample rate than critically needed in the subbands and thus reduce subband signal degradation. We suggest a design method, for a uniform DFT filter bank with any over sampling factor, where the total filter bank group delay may be specified, and where the aliasing and magnitude/phase distortions are minimized.
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author
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
in
Sixth International, Symposium on IEEE Signal Processing and its Applications
volume
1
pages
4 pages
publisher
IEEE--Institute of Electrical and Electronics Engineers Inc.
conference name
Sixth International Symposium on Signal Processing and its Applications (ISSPA 2001)
external identifiers
  • Scopus:0012369614
ISBN
0-7803-6703-0
DOI
10.1109/ISSPA.2001.949786
language
English
LU publication?
no
id
b47b3657-d7a0-4e4e-bfb7-47030a4b152c
date added to LUP
2016-06-23 15:10:23
date last changed
2016-10-13 05:10:47
@misc{b47b3657-d7a0-4e4e-bfb7-47030a4b152c,
  abstract     = {Subband adaptive filters have been proposed to avoid the drawbacks of slow convergence and high computational complexity associated with time domain adaptive filters for acoustic echo cancellation. Subband processing introduces transmission delays caused by the filter bank and signal degradations due to aliasing effects. One efficient way to reduce the aliasing effects is to allow a higher sample rate than critically needed in the subbands and thus reduce subband signal degradation. We suggest a design method, for a uniform DFT filter bank with any over sampling factor, where the total filter bank group delay may be specified, and where the aliasing and magnitude/phase distortions are minimized.},
  author       = {Grbic, Nedelko and de Haan, Jan-Mark and Claesson, Ingvar and Nordholm, Sven},
  isbn         = {0-7803-6703-0},
  language     = {eng},
  pages        = {104--107},
  publisher    = {ARRAY(0xb3a4378)},
  series       = {Sixth International, Symposium on IEEE Signal Processing and its Applications},
  title        = {Design of Oversampled Uniform DFT Filter Banks with Reduced Inband Aliasing and Delay Constraints},
  url          = {http://dx.doi.org/10.1109/ISSPA.2001.949786 },
  volume       = {1},
  year         = {2001},
}