"This work focuses on performance improvement of adaptive algorithms for both line and acoustic echo cancellation applications. Echo in telephone networks, Line Echo, is observed naturally due to impedance mismatches at the long-distance/local-loop interface. Acoustic echo is due to the acoustic coupling between the microphone and the speaker of a speakerphone. The Affine Projection (APA) and the Fast Affine Projection (FAP) algorithms are two examples of reliable and efficient adaptive filters used for echo cancellation...This thesis presents, Variable Regularized Fast Affine Projections (VR-FAP) algorithm, with a varying, optimal regularization value which provides the desirable property of both fast and low misadjustment of the filter"--Abstract, page iii.
Grant, Steven L.
Zheng, Y. Rosa
Cox, Norman R.
Electrical and Computer Engineering
M.S. in Electrical Engineering
University of Missouri--Rolla
ix, 67 pages
© 2007 Deepak Kumar Challa, All rights reserved.
Thesis - Open Access
Library of Congress Subject Headings
Adaptive filters -- Design and construction
Echo suppression (Telecommunication)
Print OCLC #
Electronic OCLC #
Link to Catalog Record
Challa, Deepak, "Performance improvement of adaptive filters for echo cancellation applications" (2007). Masters Theses. 6771.