Adaptive cancellation of a periodic interference using the HGLS adaptation algorithm

Author

Soleit, E.A.

Author_Institution

Mil. Tech. Coll., Cairo

fYear

1998

fDate

24-26 Feb 1998

Abstract

A proposal of a hyperstable gradient least squares (HGLS) adaptive recursive filter is presented in this paper. The adaptive recursive filter stability is guaranteed during the adaptation process according to the hyperstability theorem. The HGLS algorithm is used to update the coefficients of the adaptive noise canceller to remove periodic interference that is combined with desired signals. The HGLS adaptive noise canceller provides significant improvements in the output signal to noise ratio for a wide spectrum of the interference signals

Keywords

active noise control; adaptive filters; adaptive signal processing; circuit stability; gradient methods; interference suppression; least squares approximations; recursive filters; HGLS adaptation algorithm; adaptive interference cancellation; adaptive noise canceller; adaptive recursive filter; hyperstability theorem; hyperstable gradient least squares adaptation algorithm; output signal to noise ratio; periodic interference; Adaptive filters; Educational institutions; Interference cancellation; Least squares methods; Noise cancellation; Proposals; Signal generators; Signal to noise ratio; Speech enhancement; Stability;

fLanguage

English

Publisher

ieee

Conference_Titel

Radio Science Conference, 1998. NRSC '98. Proceedings of the Fifteenth National

Conference_Location

Cairo

Print_ISBN

0-7803-5121-5

Type

conf

DOI

10.1109/NRSC.1998.711518

Filename

711518