Performance improvement of adaptive filters for echo cancellation applications

Author

Deepak Challa

Abstract

"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.

Advisor(s)

Grant, Steven L.

Committee Member(s)

Zheng, Y. Rosa
Cox, Norman R.

Department(s)

Electrical and Computer Engineering

Degree Name

M.S. in Electrical Engineering

Publisher

University of Missouri--Rolla

Publication Date

Fall 2007

Pagination

ix, 67 pages

Rights

© 2007 Deepak Kumar Challa, All rights reserved.

Document Type

Thesis - Open Access

File Type

text

Language

English

Subject Headings

Adaptive filters -- Design and constructionEcho suppression (Telecommunication)

Thesis Number

T 9257

Print OCLC #

233700515

Electronic OCLC #

182729671

Recommended Citation

Challa, Deepak, "Performance improvement of adaptive filters for echo cancellation applications" (2007). Masters Theses. 6771.
https://scholarsmine.mst.edu/masters_theses/6771