A variable step size evolutionary affine projection algorithm

Author

Albu, Felix ; Paleologu, Constantin ; Benesty, Jacob

Author_Institution

Fac. of Electron. & Telecommun., Politeh. Univ. of Bucharest, Bucharest, Romania

fYear

2011

fDate

22-27 May 2011

Firstpage

429

Lastpage

432

Abstract

It is well known that the affine projection algorithm (APA) offers a good tradeoff between convergence rate/tracking and computational complexity. Recently, the evolutionary APA (E-APA) with a variable projection order has been proposed. In this paper, we propose a variable step size (VSS) version of the E-APA, called VSS-E-APA. It is shown that the VSS-E-APA is robust to near-end signal variations. Also, it has both a fast convergence speed and a small steady-state error and a much reduced numerical complexity than the VSS-APA.

Keywords

acoustic signal processing; adaptive filters; affine transforms; computational complexity; convergence; echo suppression; evolutionary computation; VSS version; VSS-E-APA; acoustic echo cancellation; adaptive filters; computational complexity; convergence rate; convergence speed; convergence tracking; evolutionary APA; near-end signal variations; numerical complexity; steady-state error; step size evolutionary affine projection algorithm; variable projection order; variable step size; Adaptive filters; Complexity theory; Convergence; Echo cancellers; Projection algorithms; Speech; adaptive filters; affine projection algorithm; echo cancellation; variable step size;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech and Signal Processing (ICASSP), 2011 IEEE International Conference on

Conference_Location

Prague

ISSN

1520-6149

Print_ISBN

978-1-4577-0538-0

Electronic_ISBN

1520-6149

Type

conf

DOI

10.1109/ICASSP.2011.5946432

Filename

5946432