Design and real implementation of adaptive notch filter

Author

Rector, Tim ; Doraiswami, R.

Author_Institution

New Brunswick Univ., Fredericton, NB, Canada

Volume

2

fYear

2000

fDate

2000

Firstpage

625

Abstract

A real time scheme to track the frequencies of multiple sinusoids in a noisy waveform is proposed. The problem of estimating the frequencies is formulated as that of adapting the parameters of a notch filter so that the mean-squared prediction error is minimized. To overcome the computational complexity, an improved adaptation scheme is proposed based on estimating one frequency at a time and is compared with other state-of-the art schemes. A prototype of the proposed scheme is constructed using a commercially available digital signal processing (DSP) board

Keywords

IIR filters; adaptive filters; digital signal processing chips; frequency estimation; mean square error methods; network synthesis; notch filters; IIR filter; adaptive notch filter design; commercially available DSP board; computational complexity; digital signal processing; frequency estimation; frequency tracking; mean-squared prediction error; multiple sinusoids; noisy waveform; real time implementation; Acoustic noise; Adaptive filters; Digital signal processing; Engines; Frequency estimation; Frequency measurement; IIR filters; Noise measurement; Sonar applications; Sonar measurements;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical and Computer Engineering, 2000 Canadian Conference on

Conference_Location

Halifax, NS

ISSN

0840-7789

Print_ISBN

0-7803-5957-7

Type

conf

DOI

10.1109/CCECE.2000.849541

Filename

849541