Title :
Saturation effects in the LMS adaptive line enhancer-transient response
Author :
Florian, S. ; Bershad, N.
Author_Institution :
Dept. of Electr. Eng., California Univ., Irvine, CA, USA
Abstract :
Digital implementation of the LMS (least-mean-squares) adaptive line enhancer (ALE) introduces certain nonlinear effects. Feedback-error-signal saturation effects on the ALE adaption are investigated. A set of nonlinear coupled difference equations is derived by projecting the mean weight vector upon a set of orthogonal basis functions. These equations are used to study the transient behavior of ALE for the case of one and two sinusoids in broadband noise
Keywords :
filtering and prediction theory; least squares approximations; signal processing; transient response; ALE; LMS adaptive line enhancer; feedback error signal saturation effects; mean weight vector; nonlinear coupled difference equations; orthogonal basis functions; sinusoids in broadband noise; transient response; Covariance matrix; Data models; Delay; Difference equations; Feedback; Least squares approximation; Line enhancers; Noise cancellation; Nonlinear equations; Transversal filters;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1988. ICASSP-88., 1988 International Conference on
Conference_Location :
New York, NY
DOI :
10.1109/ICASSP.1988.196914
