Construction of IIR filter for adaptive noise control system of boat noise reduction

Haruki Fukatsu, Kenji Muto

研究成果: Conference contribution

抄録

Noise from boats is often loud and can reach apartments or the offices located near Tokyo's canals. The aim of this research is to create quiet spaces in buildings using a sound damping system with adaptive noise control. This system does not use a reference microphone because there is sometimes no place to put it outside a window. We propose a tap length for an infinite impulse response (IIR) filter as an adaptive noise control system for reducing boat noise. In this paper, we analyzed the characteristics of boat noise as well as the adaptive damping filter. We investigated the step size and the tap numbers of the IIR filter to improve the performance of the adaptive noise control system with a digital signal processor. The results showed that boat noise is composed of a peak frequency and some other dominant frequencies caused by the boat engine which produces long continuous noise. We therefore designed the IIR filter to adapt to these frequencies. As a result, the system effectively reduced boat noise in a computer simulation.

本文言語English
ホスト出版物のタイトルProceedings of the 23rd International Congress on Acoustics
ホスト出版物のサブタイトルIntegrating 4th EAA Euroregio 2019
編集者Martin Ochmann, Vorlander Michael, Janina Fels
出版社International Commission for Acoustics (ICA)
ページ4334-4339
ページ数6
ISBN(電子版)9783939296157
DOI
出版ステータスPublished - 2019
イベント23rd International Congress on Acoustics: Integrating 4th EAA Euroregio, ICA 2019 - Aachen, Germany
継続期間: 2019 9 92019 9 23

出版物シリーズ

名前Proceedings of the International Congress on Acoustics
2019-September
ISSN(印刷版)2226-7808
ISSN(電子版)2415-1599

Conference

Conference23rd International Congress on Acoustics: Integrating 4th EAA Euroregio, ICA 2019
CountryGermany
CityAachen
Period19/9/919/9/23

ASJC Scopus subject areas

  • Mechanical Engineering
  • Acoustics and Ultrasonics

フィンガープリント 「Construction of IIR filter for adaptive noise control system of boat noise reduction」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル