Nonlinear Acoustic Echo Cancellation Using a Nonlinear Postprocessor With a Linearly Constrained Affine Projection Algorithm

This brief presents a nonlinear acoustic echo cancellation algorithm comprising a postprocessor that can model the saturation-type nonlinear distortion of a microphone circuit. To support fast adaptation to the acoustic echo environment, the linear filter is adapted using an affine projection algori...

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Bibliographic Details
Published in:	IEEE transactions on circuits and systems. II, Express briefs Vol. 62; no. 9; pp. 881 - 885
Main Authors:	Lee, Keunsang, Baek, Yonghyun, Park, Youngcheol
Format:	Journal Article
Language:	English
Published:	New York IEEE 01.09.2015 The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects:	Acoustic distortion Acoustics Algorithms Cancellation Circuits Convergence Distortion Echo cancellers hard-clipper function linear constraint affine projection Mathematical analysis Microphones Nonlinear acoustic echo cancellation Nonlinear distortion nonlinear postprocessor Nonlinearity Projection sigmoid function Signal processing algorithms Vectors (mathematics) Hard-clipper function nonlinear postprocessor nonlinear acoustic echo cancellation (NAEC) sigmoid function linear constraint affine projection (AP)
ISSN:	1549-7747, 1558-3791
Online Access:	Get full text
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