Analysis and dsp implementation of a broadband duct anc system using spatially feedforward structure

Mingsian R. Bai, Yujeng Lin, Jian-Da Wu

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The active control technique for broadband attenuation of noise in ducts, using spatially feedforward structure, is investigated from the viewpoints of both acoustic analysis and control engineering. According to the previous work by Munjal and Eriksson [1], there exists an ideal controller for this problem. The ideal controller is a function of the finite source impedance and is thus independent of the boundary conditions. Despite the simplicity, the ideal controller cannot be practically implemented due to the difficulty of calibration of electro-mechanical parameters. To overcome the problem, the controller is implemented via an equivalent formulation modified from the controller originally proposed by Roure [2]. The modified controller is implemented on a DSP platform, using a FIR filter, an IIR filter and a hybrid filter. The experimental results showed that the system achieved 17.2 dB maximal attenuation in the frequency band 300;600 Hz. Physical insights and design considerations in implementation phase are also discussed in the paper.

Original languageEnglish
Pages (from-to)129-136
Number of pages8
JournalJournal of Vibration and Acoustics, Transactions of the ASME
Volume123
Issue number2
DOIs
Publication statusPublished - 2001 Jan 1

Fingerprint

ducts
Ducts
controllers
broadband
Controllers
attenuation
IIR filters
FIR filters
active control
Frequency bands
platforms
Acoustics
Boundary conditions
impedance
engineering
Calibration
boundary conditions
filters
formulations
acoustics

All Science Journal Classification (ASJC) codes

  • Acoustics and Ultrasonics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

@article{a6014f7fe1884c6dadaba8f57eef6414,
title = "Analysis and dsp implementation of a broadband duct anc system using spatially feedforward structure",
abstract = "The active control technique for broadband attenuation of noise in ducts, using spatially feedforward structure, is investigated from the viewpoints of both acoustic analysis and control engineering. According to the previous work by Munjal and Eriksson [1], there exists an ideal controller for this problem. The ideal controller is a function of the finite source impedance and is thus independent of the boundary conditions. Despite the simplicity, the ideal controller cannot be practically implemented due to the difficulty of calibration of electro-mechanical parameters. To overcome the problem, the controller is implemented via an equivalent formulation modified from the controller originally proposed by Roure [2]. The modified controller is implemented on a DSP platform, using a FIR filter, an IIR filter and a hybrid filter. The experimental results showed that the system achieved 17.2 dB maximal attenuation in the frequency band 300;600 Hz. Physical insights and design considerations in implementation phase are also discussed in the paper.",
author = "Bai, {Mingsian R.} and Yujeng Lin and Jian-Da Wu",
year = "2001",
month = "1",
day = "1",
doi = "10.1115/1.1355031",
language = "English",
volume = "123",
pages = "129--136",
journal = "Journal of Vibration and Acoustics, Transactions of the ASME",
issn = "1048-9002",
publisher = "American Society of Mechanical Engineers(ASME)",
number = "2",

}

Analysis and dsp implementation of a broadband duct anc system using spatially feedforward structure. / Bai, Mingsian R.; Lin, Yujeng; Wu, Jian-Da.

In: Journal of Vibration and Acoustics, Transactions of the ASME, Vol. 123, No. 2, 01.01.2001, p. 129-136.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Analysis and dsp implementation of a broadband duct anc system using spatially feedforward structure

AU - Bai, Mingsian R.

AU - Lin, Yujeng

AU - Wu, Jian-Da

PY - 2001/1/1

Y1 - 2001/1/1

N2 - The active control technique for broadband attenuation of noise in ducts, using spatially feedforward structure, is investigated from the viewpoints of both acoustic analysis and control engineering. According to the previous work by Munjal and Eriksson [1], there exists an ideal controller for this problem. The ideal controller is a function of the finite source impedance and is thus independent of the boundary conditions. Despite the simplicity, the ideal controller cannot be practically implemented due to the difficulty of calibration of electro-mechanical parameters. To overcome the problem, the controller is implemented via an equivalent formulation modified from the controller originally proposed by Roure [2]. The modified controller is implemented on a DSP platform, using a FIR filter, an IIR filter and a hybrid filter. The experimental results showed that the system achieved 17.2 dB maximal attenuation in the frequency band 300;600 Hz. Physical insights and design considerations in implementation phase are also discussed in the paper.

AB - The active control technique for broadband attenuation of noise in ducts, using spatially feedforward structure, is investigated from the viewpoints of both acoustic analysis and control engineering. According to the previous work by Munjal and Eriksson [1], there exists an ideal controller for this problem. The ideal controller is a function of the finite source impedance and is thus independent of the boundary conditions. Despite the simplicity, the ideal controller cannot be practically implemented due to the difficulty of calibration of electro-mechanical parameters. To overcome the problem, the controller is implemented via an equivalent formulation modified from the controller originally proposed by Roure [2]. The modified controller is implemented on a DSP platform, using a FIR filter, an IIR filter and a hybrid filter. The experimental results showed that the system achieved 17.2 dB maximal attenuation in the frequency band 300;600 Hz. Physical insights and design considerations in implementation phase are also discussed in the paper.

UR - http://www.scopus.com/inward/record.url?scp=0001934519&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0001934519&partnerID=8YFLogxK

U2 - 10.1115/1.1355031

DO - 10.1115/1.1355031

M3 - Article

AN - SCOPUS:0001934519

VL - 123

SP - 129

EP - 136

JO - Journal of Vibration and Acoustics, Transactions of the ASME

JF - Journal of Vibration and Acoustics, Transactions of the ASME

SN - 1048-9002

IS - 2

ER -