Adaptive Feedback Canceller: Entrainment

Author

Theverapperuma, Lalin S. ; Kindred, Jon S.

Author_Institution

Electr. & Comput. Eng. Dept., Minnesota Univ., Minneapolis, MN

fYear

2006

fDate

24-27 Sept. 2006

Firstpage

245

Lastpage

250

Abstract

This paper explains the chaotic artifact (entrainment) observed when correlated input signals are presented to an adaptive feedback canceller. When an adaptive feedback canceller is being entrained, a few intermittent new frequency components are manifested while keeping the system near the boundary of instability. By applying mean square error (MSE) surface concepts to a simplified feedback canceller, we demonstrate the fundamental cause for the phenomenon and show that this is inherent to a feedback canceller structure

Keywords

acoustic signal processing; correlation methods; mean square error methods; MSE; adaptive feedback canceller; chaotic artifact; frequency component; mean square error; signal correlation; Adaptive filters; Chaos; Distortion; Frequency; Laboratories; Mean square error methods; Output feedback; System identification; Transfer functions; White noise; Adaptive Feedback Cancellation; Entrainment; LMS; Mean Square Error; System Identification Configuration; bias artifact; electro-acoustic system;

fLanguage

English

Publisher

ieee

Conference_Titel

Digital Signal Processing Workshop, 12th - Signal Processing Education Workshop, 4th

Conference_Location

Teton National Park, WY

Print_ISBN

1-4244-3534-3

Electronic_ISBN

1-4244-0535-1

Type

conf

DOI

10.1109/DSPWS.2006.265384

Filename

4041067