A Frequency Domain Estimation Algorithm Allowing Broadband Feedforward Active Noise Control Systems

Author

Yamada, Yoji ; Frantz, J. Patrick ; Kiya, Hitoshi

Author_Institution

Ishikawa Nat. Coll. of Technol.

fYear

2006

fDate

24-27 Sept. 2006

Firstpage

360

Lastpage

364

Abstract

This paper proposes a frequency domain estimation algorithm for feedforward active noise control systems. To configure an M-tap adaptive filter, this technique uses M-channel maximally decimated alias-free DFT-frequency sampling filter (DFT-FSF) banks which equipped with 1-tap adaptive filter in each subband. The use of the proposed frequency domain estimation algorithm enables more than 10 times faster convergence than the normalized least mean square algorithm, and at the same time, the delayless structure enables broadband noise attenuation. Computer simulation results using the measured impulse response of an actual experimental setup show the effectiveness of the proposed method

Keywords

active noise control; adaptive filters; channel bank filters; discrete Fourier transforms; frequency estimation; frequency-domain analysis; signal sampling; transient response; DFT-FSF bank; M-tap adaptive filter; discrete Fourier transform; feedforward active noise control system; frequency domain estimation algorithm; frequency sampling filter; impulse response; Active noise reduction; Adaptive filters; Control systems; Convergence; Delay estimation; Filter bank; Frequency domain analysis; Frequency estimation; Least mean square algorithms; Sampling methods; Active noise control; DFT-FSF; alias free; delayless; feedforward; frequency domain;

fLanguage

English

Publisher

ieee

Conference_Titel

Digital Signal Processing Workshop, 12th - Signal Processing Education Workshop, 4th

Conference_Location

Teton National Park, WY

Print_ISBN

1-4244-3534-3

Electronic_ISBN

1-4244-0535-1

Type

conf

DOI

10.1109/DSPWS.2006.265381

Filename

4041089