Development of a zero spillover controller for broadband cancellation of noise in ducts

Masaki Mito, Masako Hitaka, Tatsuya Kawae, Kazuyoshi Takeda, Tetsuo Kitai, Noriaki Toyoshima

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

In this paper, an active noise control (ANC) system for broadband cancellation of noise in ducts, where a nonacoustical reference is unavailable and thus the ANC structure is "spatially feedforward" is presented. In this structure, acoustic feedback that is known to be detrimental to system stability and performance must be taken into account into controller design. In this case, difficulties generally arise in implementing the ideal controller, or the zero spillover controller due to plant uncertainties. In the present study, an equivalent approach based on the 2-norm (H2) optimal model matching principle is proposed in controller design. The control algorithm is implemented on a digital signal processor (DSP), by finite impulse response (FIR), infinite impulse response (IIR) and hybrid filters. The experimental results indicate that the proposed controller was effective in suppressing periodic noise and random noise sources, without and with airflow.

Original languageEnglish
Pages (from-to)6634-6640
Number of pages7
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume40
Issue number11
Publication statusPublished - Nov 1 2001

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy(all)

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