Table of Contents
ISRN Signal Processing
Volume 2011, Article ID 180624, 5 pages
http://dx.doi.org/10.5402/2011/180624
Research Article

Affine Projection Algorithm Using Regressive Estimated Error

Department of Automatic Control, Northwestern Polytechnical University, Xi'an 710072, China

Received 24 February 2011; Accepted 30 March 2011

Academic Editors: A. Esposito and A. Krzyzak

Copyright © 2011 Shu Zhang and Yongfeng Zhi. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

An affine projection algorithm using regressive estimated error (APA-REE) is presented in this paper. By redefining the iterated error of the affine projection algorithm (APA), a new algorithm is obtained, and it improves the adaptive filtering convergence rate. We analyze the iterated error signal and the stability for the APA-REE algorithm. The steady-state weights of the APA-REE algorithm are proved to be unbiased and consist. The simulation results show that the proposed algorithm has a fast convergence rate compared with the APA algorithm.