By Topic

Study of adaptive nonlinear echo canceller with Volterra expansion

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Chen, J. ; Dept. of Electr. Eng., Katholieke Univ., Leuven, Belgium ; Vandewalle, J.

A nonlinear echo canceller with Volterra series expansion is presented. A model of the data transmission system is used to study its performance. It is shown that the Volterra expansion method is a good solution to the problem of nonlinear echo cancellation. To sufficiently reduce the nonlinearities caused by A/D and D/A (analog/digital and digital/analog) converters, an adaptive third-order Volterra filter with a nonlinear memory of length three can be applied. The far-end signal has a very strong influence on the canceller. To reduce this, a training sequence without a far-end signal is used, and different values of the step-size μ are chosen for the transient period (larger μ) and for the steady state. Simulations have shown that the canceller can achieve 15-dB improvement with a training sequence and 8-dB improvement without the training sequence

Published in:

Acoustics, Speech, and Signal Processing, 1989. ICASSP-89., 1989 International Conference on

Date of Conference:

23-26 May 1989