Performance analysis of adaptive notch filter using multirate technique

Author

Nishimura, S. ; Kim, J.K. ; Hirano, K. ; Kayano, T.

Author_Institution

Fac. of Sci., Shimane Univ., Matsue, Japan

fYear

1991

fDate

11-14 Jun 1991

Firstpage

702

Abstract

The authors investigate the steady-state behavior of a multirate adaptive IIR (infinite impulse response) notch filter whose coefficients are estimated using gradient and normalized gradient algorithms. The adaptive detection of a sinusoid with additive Gaussian noise has been investigated. With the help of the obtained difference equations, approximate and simple closed-form results are derived to obtain the mean-square error of coefficient fluctuation for a decimated filter. The present analysis verifies the excellent steady-state performance of the multirate adaptive notch filter recently proposed by M.R. Petraglia et al. (1990). The proposed method of analysis will be useful for the quantitative evaluation for the effects of multirate and block techniques in adaptive notch filters

Keywords

adaptive filters; difference equations; digital filters; notch filters; signal detection; IIR notch filter; adaptive notch filter; adaptive sinusoid detection; additive Gaussian noise; block techniques; closed-form results; coefficient fluctuation mean square error; decimated filter; difference equations; multirate technique; normalized gradient algorithms; steady-state behavior; Adaptive filters; Band pass filters; Computer errors; Difference equations; Finite impulse response filter; IIR filters; Mean square error methods; Performance analysis; Steady-state; Transfer functions;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 1991., IEEE International Sympoisum on

Print_ISBN

0-7803-0050-5

Type

conf

DOI

10.1109/ISCAS.1991.176431

Filename

176431