Frequency domain adaptive algorithm for active noise control (2nd report, Investigation with an experimental duct model)

Shinya Kijimoto, Hiroshi Shimojima, Akihiro Shibahara

Research output: Contribution to journalArticle

Abstract

A new adaptive control algorithm in the frequency domain was propose. This frequency domain approach is an alternative to the ordinary filtered x least mean squares (LMS) algorithm in the time domain. A transfer characteristic of an acoustic path is identified adaptively in the frequency domain using the fast Fourier transform (FFT). The real time control of the noise reduction in an L formed duct model was carried out. A digital signal processor and a personal computer were used for the active noise control. The maximum noise reduction level of about 30 dB and the average reduction level of about 7 dB were obtained through the experiment. As a result, it was shown that this frequency domain adaptive algorithm has faster convergence compared to the ordinary filtered x LMS algorithm.

Original languageEnglish
Pages (from-to)1397-1402
Number of pages6
JournalNippon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C
Volume62
Issue number596
DOIs
Publication statusPublished - Jan 1 1996
Externally publishedYes

Fingerprint

Active noise control
Adaptive algorithms
Ducts
Noise abatement
Digital signal processors
Real time control
Personal computers
Fast Fourier transforms
Acoustics
Experiments

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering

Cite this

@article{7fac5e26dd694eb198870c186040b94c,
title = "Frequency domain adaptive algorithm for active noise control (2nd report, Investigation with an experimental duct model)",
abstract = "A new adaptive control algorithm in the frequency domain was propose. This frequency domain approach is an alternative to the ordinary filtered x least mean squares (LMS) algorithm in the time domain. A transfer characteristic of an acoustic path is identified adaptively in the frequency domain using the fast Fourier transform (FFT). The real time control of the noise reduction in an L formed duct model was carried out. A digital signal processor and a personal computer were used for the active noise control. The maximum noise reduction level of about 30 dB and the average reduction level of about 7 dB were obtained through the experiment. As a result, it was shown that this frequency domain adaptive algorithm has faster convergence compared to the ordinary filtered x LMS algorithm.",
author = "Shinya Kijimoto and Hiroshi Shimojima and Akihiro Shibahara",
year = "1996",
month = "1",
day = "1",
doi = "10.1299/kikaic.62.1397",
language = "English",
volume = "62",
pages = "1397--1402",
journal = "Nippon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C",
issn = "0387-5024",
publisher = "The Japan Society of Mechanical Engineers",
number = "596",

}

TY - JOUR

T1 - Frequency domain adaptive algorithm for active noise control (2nd report, Investigation with an experimental duct model)

AU - Kijimoto, Shinya

AU - Shimojima, Hiroshi

AU - Shibahara, Akihiro

PY - 1996/1/1

Y1 - 1996/1/1

N2 - A new adaptive control algorithm in the frequency domain was propose. This frequency domain approach is an alternative to the ordinary filtered x least mean squares (LMS) algorithm in the time domain. A transfer characteristic of an acoustic path is identified adaptively in the frequency domain using the fast Fourier transform (FFT). The real time control of the noise reduction in an L formed duct model was carried out. A digital signal processor and a personal computer were used for the active noise control. The maximum noise reduction level of about 30 dB and the average reduction level of about 7 dB were obtained through the experiment. As a result, it was shown that this frequency domain adaptive algorithm has faster convergence compared to the ordinary filtered x LMS algorithm.

AB - A new adaptive control algorithm in the frequency domain was propose. This frequency domain approach is an alternative to the ordinary filtered x least mean squares (LMS) algorithm in the time domain. A transfer characteristic of an acoustic path is identified adaptively in the frequency domain using the fast Fourier transform (FFT). The real time control of the noise reduction in an L formed duct model was carried out. A digital signal processor and a personal computer were used for the active noise control. The maximum noise reduction level of about 30 dB and the average reduction level of about 7 dB were obtained through the experiment. As a result, it was shown that this frequency domain adaptive algorithm has faster convergence compared to the ordinary filtered x LMS algorithm.

UR - http://www.scopus.com/inward/record.url?scp=0030120777&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0030120777&partnerID=8YFLogxK

U2 - 10.1299/kikaic.62.1397

DO - 10.1299/kikaic.62.1397

M3 - Article

AN - SCOPUS:0030120777

VL - 62

SP - 1397

EP - 1402

JO - Nippon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C

JF - Nippon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C

SN - 0387-5024

IS - 596

ER -