Practical adaptive hybrids with no bursting

TitlePractical adaptive hybrids with no bursting
Publication TypeConference Paper
Year of Publication1993
AuthorsWang, L., and T. Aboulnasr
Conference NameAcoustics, Speech, and Signal Processing, 1993. ICASSP-93., 1993 IEEE International Conference on
Pagination336 -339 vol.3
Date Publishedapr.
Keywordsadaptive filter, adaptive filters, adaptive hybrid system, bursting, computer simulations, correlation methods, cross-correlation, echo cancellation, echo suppression, effectiveness, feedback, fixed feedback, telephone systems

The bursting phenomenon in the echo cancellation of telephone systems is investigated. The setup studied is an adaptive hybrid system with an echo canceller (EC) at the near end and a fixed feedback at the far end. Two effective approaches are proposed to ensure that bursting does not happen. Both are based on checking the cross-correlation between the input and the error of the EC. Bursting is avoided by stopping the drifting of the coefficients of the adaptive filter. The effectiveness of these two approaches is illustrated by extensive computer simulations using realistic hybrids


a place of mind, The University of British Columbia

Electrical and Computer Engineering
2332 Main Mall
Vancouver, BC Canada V6T 1Z4
Tel +1.604.822.2872
Fax +1.604.822.5949

Emergency Procedures | Accessibility | Contact UBC | © Copyright 2021 The University of British Columbia