Performance analysis of the equation error adaptive IIR notch filter with constrained poles and zeros

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

doi:10.1109/ISCIT.2006.340046

Performance analysis of the 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.2006.340046

Abstract

A statistical analysis of the equation error adaptive IIR notch filter (EANF) is presented in this paper. Analytical results reveal that if the filter is excited with a noisy sinusoid, the EANF will become a biased estimator. In addition, the obtained results show that the bias depends on the input noise power and input frequency but it is independent of the step-size parameter whereas the MSE (mean square error) depends on the bias and step-size parameter. However, these analytical results will be invalid when the signal to noise ratio (SNR) is less than 10 dB. © 2006 IEEE.

Citation

2006 International Symposium on Communications and Information Technologies Iscit, 274-277, 2006