Tracking characteristics of an adaptive IIR notch filter for sinusoidal frequency variation

Author

Mvuma, Aloys ; Nishimura, Shotaro ; Hinamoto, Takao

Author_Institution

Telecommun. Eng. Dept., Univ. of Dar es Salaam, Dar es Salaam

fYear

2008

fDate

10-13 Aug. 2008

Firstpage

858

Lastpage

861

Abstract

Tracking behavior of a gradient-based simplified algorithm for an adaptive infinite impulse response (IIR) notch filter with a sinusoidally-varying input signal frequency is presented in this paper. A first-order difference equation with respect to a steady-state instantaneous frequency tracking error is derived. The difference equation is used to derive tracking error and tracking mean square error (MSE) expressions based on the power spectral density (PSD) method. Extensive computer simulations are included to substantiate the analysis and show its limits.

Keywords

IIR filters; adaptive filters; difference equations; filtering theory; gradient methods; mean square error methods; notch filters; adaptive IIR notch filter; first-order difference equation; gradient-based simplified algorithm; infinite impulse response filter; mean square error; power spectral density method; sinusoidally-varying input signal frequency; steady-state instantaneous frequency tracking error; Adaptive filters; Algorithm design and analysis; Computer errors; Difference equations; Finite impulse response filter; Frequency; IIR filters; Mean square error methods; Radar tracking; Steady-state;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2008. MWSCAS 2008. 51st Midwest Symposium on

Conference_Location

Knoxville, TN

ISSN

1548-3746

Print_ISBN

978-1-4244-2166-4

Electronic_ISBN

1548-3746

Type

conf

DOI

10.1109/MWSCAS.2008.4616935

Filename

4616935