Bias removal in equation error adaptive IIR notch filter with constrained poles and zeros

Punchalard, Rachu; Loetwassana, Wuthiporn; Koseeyaporn, Jeerasuda; Wardkein, Paramote

doi:10.1109/ISCIT.2006.340047

Bias removal in equation error adaptive IIR notch filter with constrained poles and zeros

Author(s)

Punchalard, Rachu

Loetwassana, Wuthiporn

Koseeyaporn, Jeerasuda

Wardkein, Paramote

Date Issued

December 1, 2006

Type

Conference Paper

DOI

10.1109/ISCIT.2006.340047

Abstract

A new equation-error based gradient algorithm, which is derived from standard PG (plain gradient) algorithm, is proposed for a second-order adaptive IIR notch filter with constrained poles and zeros. The proposed technique employs the technique of minimizing an unconstrained error function to remove the bias in an estimated coefficient. It is demonstrated that the suggested method gives unbiased IIR system parameter estimation. © 2006 IEEE.

Citation

2006 International Symposium on Communications and Information Technologies Iscit, 278-280, 2006