Frequency estimation by adaptive notch-filtering in cascade/parallel form

Author

Oestreich, S. ; Appel, U.

Author_Institution

Inst. for Math. und Datenverarbeitung, Bundeswehr Munchen Univ., Neubiberg, West Germany

fYear

1988

fDate

3-5 Aug 1988

Firstpage

44

Lastpage

48

Abstract

A novel algorithm is presented for frequency estimation of sinusoids in noise. A priori knowledge of relations between the sinusoid frequencies (e.g. harmonics) is incorporated into the procedure, resulting in a single parameter estimation. The special ARMA system used-the notch filter-is implemented in cascade/parallel form with independent second-order sections. The update for each section is done by the recursive prediction error method. Simulation results are presented and compared to results obtained with the direct-form implementation of adaptive notch filters

Keywords

adaptive filters; cascade networks; errors; filtering and prediction theory; noise; parameter estimation; ARMA system; adaptive notch-filtering; cascade/parallel filter; frequency estimation; noise; recursive prediction error method; single parameter estimation; sinusoids; Adaptive filters; Additive noise; Additive white noise; Data mining; Error correction; Frequency estimation; Parameter estimation; Power harmonic filters; Recursive estimation; White noise;

fLanguage

English

Publisher

ieee

Conference_Titel

Spectrum Estimation and Modeling, 1988., Fourth Annual ASSP Workshop on

Conference_Location

Minneapolis, MN

Type

conf

DOI

10.1109/SPECT.1988.206160

Filename

206160