Affine projection sign algorithm with l(1) minimization-based variable step-size
- Title
- Affine projection sign algorithm with l(1) minimization-based variable step-size
- Author
- 남상원
- Keywords
- Adaptive filter; Affine projection sign algorithm; Variable step-size; l(1)-norm minimization
- Issue Date
- 2014-12
- Publisher
- Elsevier Science B.V
- Citation
- Signal Processing, 2014, 105, P.376-380
- Abstract
- In this paper, a new affine projection sign algorithm with a variable step-size, robust in impulsive noise environments, is proposed. For that purpose, l(1)-norm of the a posteriori error vector is minimized under a box constraint on the step-size. Since the proposed l(1)-norm minimization problem is non-differentiable convex one, an efficient numerical procedure is developed for the affine projection structure algorithm. Finally, it is demonstrated that the proposed algorithm, not requiring any a priori knowledge, yields more robust convergence in various impulsive noise environments than conventional algorithms with robustness to outliers and recent variable step-size algorithms with a priori information. (c) 2014 Elsevier B.V. All rights reserved.
- URI
- https://www.sciencedirect.com/science/article/pii/S0165168414002722?via%3Dihub
- ISSN
- 0165-1684; 1879-2677
- DOI
- 10.1016/j.sigpro.2014.06.006
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > ELECTRONIC ENGINEERING(융합전자공학부) > Articles
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