Sparsity-aware adaptive filters based on p-norm inspired soft-thresholding technique

Masahiro Yukawa, Yuta Tawara, Masao Yamagishi, Isao Yamada

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

15 Citations (Scopus)

Abstract

We propose a novel sparsity-aware adaptive filtering algorithm based on iterative use of weighted soft-thresholding. The weights are determined based on a rough local approximation of the p norm (0 < p < 1). The proposed algorithm operates the weighted soft-thresholding for enhancing the sparsity, following estimation error managements with the affine projection. The proposed weighting technique alleviates an extra bias of no benefit caused by shrinking dominant coefficients. The numerical examples demonstrate that the proposed weighting technique outperforms the existing one when the situation changes under the fixed parameter settings.

Original languageEnglish
Title of host publicationISCAS 2012 - 2012 IEEE International Symposium on Circuits and Systems
Pages2749-2752
Number of pages4
DOIs
Publication statusPublished - 2012
Externally publishedYes
Event2012 IEEE International Symposium on Circuits and Systems, ISCAS 2012 - Seoul, Korea, Republic of
Duration: 2012 May 202012 May 23

Other

Other2012 IEEE International Symposium on Circuits and Systems, ISCAS 2012
CountryKorea, Republic of
CitySeoul
Period12/5/2012/5/23

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Adaptive filters
Adaptive filtering
Error analysis

ASJC Scopus subject areas

  • Hardware and Architecture
  • Electrical and Electronic Engineering

Cite this

Yukawa, M., Tawara, Y., Yamagishi, M., & Yamada, I. (2012). Sparsity-aware adaptive filters based on p-norm inspired soft-thresholding technique. In ISCAS 2012 - 2012 IEEE International Symposium on Circuits and Systems (pp. 2749-2752). [6271878] https://doi.org/10.1109/ISCAS.2012.6271878

Sparsity-aware adaptive filters based on p-norm inspired soft-thresholding technique. / Yukawa, Masahiro; Tawara, Yuta; Yamagishi, Masao; Yamada, Isao.

ISCAS 2012 - 2012 IEEE International Symposium on Circuits and Systems. 2012. p. 2749-2752 6271878.

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

Yukawa, M, Tawara, Y, Yamagishi, M & Yamada, I 2012, Sparsity-aware adaptive filters based on p-norm inspired soft-thresholding technique. in ISCAS 2012 - 2012 IEEE International Symposium on Circuits and Systems., 6271878, pp. 2749-2752, 2012 IEEE International Symposium on Circuits and Systems, ISCAS 2012, Seoul, Korea, Republic of, 12/5/20. https://doi.org/10.1109/ISCAS.2012.6271878
Yukawa M, Tawara Y, Yamagishi M, Yamada I. Sparsity-aware adaptive filters based on p-norm inspired soft-thresholding technique. In ISCAS 2012 - 2012 IEEE International Symposium on Circuits and Systems. 2012. p. 2749-2752. 6271878 https://doi.org/10.1109/ISCAS.2012.6271878
Yukawa, Masahiro ; Tawara, Yuta ; Yamagishi, Masao ; Yamada, Isao. / Sparsity-aware adaptive filters based on p-norm inspired soft-thresholding technique. ISCAS 2012 - 2012 IEEE International Symposium on Circuits and Systems. 2012. pp. 2749-2752
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