Proportionate affine projection algorithm based on coefficient difference

Author

Zongsheng Zheng ; Haiquan Zhao

Author_Institution

Sch. of Electr. Eng., Southwest Jiaotong Univ., Chengdu, China

fYear

2014

fDate

5-8 Aug. 2014

Firstpage

115

Lastpage

119

Abstract

This paper proposes a proportionate affine projection algorithm based on coefficient difference (DPAPA). Its adaptation gain for each tap is proportional to the absolute value of the difference between the current tap weight estimate and the previous tap weight estimate. In addition, a simple version is introduced to decrease the amount of calculation. The simulation results show that the proposed algorithm has better performance than the other algorithms, e.g. the proportionate affine projection algorithm (PAPA) and improved proportionate affine projection algorithm (IPAPA).

Keywords

adaptive filters; echo suppression; least mean squares methods; adaptation gain; coefficient difference; current tap weight estimate; proportionate affine projection algorithm; Adaptive filters; Computational complexity; Convergence; Echo cancellers; Educational institutions; Projection algorithms; Signal processing algorithms; Adaptive filter; echo cancellation; proportionate affine projection algorithm (PAPA);

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing, Communications and Computing (ICSPCC), 2014 IEEE International Conference on

Conference_Location

Guilin

Print_ISBN

978-1-4799-5272-4

Type

conf

DOI

10.1109/ICSPCC.2014.6986164

Filename

6986164