Adaptive echo cancellation based on third order cumulant

Author

Asjadi, Hosien ; Ababafha, Mohammad

Author_Institution

Dept. of Electr. Eng., K.N. Toosi Univ. of Technol., Tehran, Iran

Volume

1

fYear

1997

fDate

9-12 Sep 1997

Firstpage

331

Abstract

A new adaptive algorithm is introduced for echo cancelling. In this method, we employ the third order cumulant to update the adaptive filter coefficients. We demonstrate, by means of simulations that the third order cumulant-based adaptive algorithm performs more effectively than the LMS algorithm particularly when the input signal is accompanied with Gaussian uncorrelated noise. Moreover, the proposed algorithm shows robustness to the variations of the step-size and input signal statistics

Keywords

Gaussian noise; adaptive filters; adaptive signal processing; echo suppression; filtering theory; higher order statistics; Gaussian uncorrelated noise; LMS algorithm; adaptive algorithm; adaptive echo cancellation; adaptive filter coefficients; computational complexity; input signal; input signal statistics; step-size; third order cumulant; Adaptive algorithm; Adaptive filters; Echo cancellers; Equations; Gaussian noise; Higher order statistics; Least squares approximation; Modems; Noise cancellation; Telephony;

fLanguage

English

Publisher

ieee

Conference_Titel

Information, Communications and Signal Processing, 1997. ICICS., Proceedings of 1997 International Conference on

Print_ISBN

0-7803-3676-3

Type

conf

DOI

10.1109/ICICS.1997.647114

Filename

647114