An Acoustic Echo Cancellation Based on the Adaptive Lattice-Transversal Joint (LTJ) Filter Structure

Jae Ha YOO  Sung Ho CHO  Dae Hee YOUN  

IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences   Vol.E81-A   No.9   pp.1951-1954
Publication Date: 1998/09/25
Online ISSN: 
Print ISSN: 0916-8508
Type of Manuscript: LETTER
Category: Acoustics
acoustic echo canceller,  adaptive filter,  lattice structure,  

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In this paper, we propose an adaptive lattice-transversal joint (LTJ) filter structure that is quite suitable for the practical implementation of the acoustic echo canceller. The structure maintains fast convergence of the lattice structure and low computational complexity of the transversal structure simultaneously. It is particularly more efficient in memory usage than any other existing fast-convergent algorithm for the acoustic echo cancellation.