Nonlinear line echo cancellation using a simplified second order Volterra filter

Conference contribution
(Conference Contribution)


Publication Details

Author(s): Küch F, Kellermann W
Publisher: IEEE
Publication year: 2002
Volume: 2


Abstract


This paper deals with nonlinearities in line echo cancellation. If a high attenuation of the echo signal is required, the nonlinear behaviour of the actual echo path has to be taken into account. As the echo path inherently has memory, the nonlinear approaches have to be capable to model nonlinear systems with memory. Adaptive Volterra filters represent a common method to deal with such systems. Unfortunately, they suffer from a high computational complexity. Therefore, we propose an adaptive structure representing a simplified realization of a special second order Volterra filter (SVF) and provide an efficient step-size control for speech input. For the given application this structure achieves the same performance as second order Volterra filters at remarkably reduced computational cost.



FAU Authors / FAU Editors

Kellermann, Walter Prof. Dr.-Ing.
Professur für Nachrichtentechnik


How to cite

APA:
Küch, F., & Kellermann, W. (2002). Nonlinear line echo cancellation using a simplified second order Volterra filter. In Proceedings of the 2002 IEEE International Conference on Acoustic, Speech and Signal Processing. Orlando, FL, US: IEEE.

MLA:
Küch, Fabian, and Walter Kellermann. "Nonlinear line echo cancellation using a simplified second order Volterra filter." Proceedings of the 2002 IEEE International Conference on Acoustic, Speech and Signal Processing, Orlando, FL IEEE, 2002.

BibTeX: 

Last updated on 2019-03-06 at 07:14