Sign subband adaptive filter with l(1)-norm minimisation-based variable step-size
- Authors
- Kim, J. H.; Chang, J. -H.; Nam, S. W.
- Issue Date
- Oct-2013
- Publisher
- INST ENGINEERING TECHNOLOGY-IET
- Keywords
- adaptive filters; convex programming; minimisation; a" " (1)-norm minimisation-based variable step-size; variable step-size sign subband adaptive filter; VSS-SSAF; nondifferentiable convex problem; impulsive interferences
- Citation
- ELECTRONICS LETTERS, v.49, no.21, pp.1325 - 1326
- Indexed
- SCIE
SCOPUS
- Journal Title
- ELECTRONICS LETTERS
- Volume
- 49
- Number
- 21
- Start Page
- 1325
- End Page
- 1326
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/26636
- DOI
- 10.1049/el.2013.2011
- ISSN
- 0013-5194
- Abstract
- A new variable step-size sign subband adaptive filter (VSS-SSAF), not requiring any a priori information, is proposed by minimising the (1)-norm of the subband a posteriori error under a box-constraint on the step-size. In addition, an efficient numerical procedure for updating its VSS is introduced to solve the non-differentiable convex problem. The proposed algorithm provides comparable or better convergence performance, when compared with the recent VSS-SSAF (minimising the mean-squares deviation with a priori knowledge of noise variance) or other conventional algorithms aimed at robustness against impulsive interferences.
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