Simplified proportionate affine projection algorithms

Author

Albu, Felix

Author_Institution

Fac. of Electr. Eng., Valahia Univ. of Targoviste, Targoviste, Romania

fYear

2012

fDate

11-13 April 2012

Firstpage

368

Lastpage

371

Abstract

In this paper, new efficient proportionate affine projection algorithms are proposed. They use a simplified way of computing the output error vector. It is shown that the simplified approximated memory improved proportionate affine projection algorithm (SAMIPAPA) offers the best compromise between complexity and performance if compared with other proportionate-type APAs. Also, it is shown that, if the logarithmic proportionate scheme is integrated in SAMIPAPA, the convergence speed and tracking abilities are worse.

Keywords

acoustic signal processing; adaptive filters; echo suppression; SAMIPAPA; acoustic echo cancellation; adaptive filter; convergence speed; logarithmic proportionate scheme; output error vector computing; proportionate-type APA; simplified approximated memory improved proportionate affine projection algorithm; Adaptive filters; Approximation algorithms; Approximation methods; Complexity theory; Echo cancellers; Projection algorithms; Vectors; acoustic echo cancellation; logarithmic proportionate updating scheme; proportionate affine projection algorithm;

fLanguage

English

Publisher

ieee

Conference_Titel

Systems, Signals and Image Processing (IWSSIP), 2012 19th International Conference on

Conference_Location

Vienna

ISSN

2157-8672

Print_ISBN

978-1-4577-2191-5

Type

conf

Filename

6208150