Presentation 2005-01-28
A Method to Update the Coefficients of Feedback Control Filter Using Frequency Domain Simulataneous Equations Method under Active Noise Control
Yusuke IWAMATSU, Kensaku FUJII, Mitsuji MUNEYASU,
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Abstract(in English) This paper proposed a method to update the coefficients of feedback control filter using frequency domain simulataneous equations method under active noise control(ANC). This method doesn't require system identification for estimating the coefficients of feedback control filter and improves convergence speed. Because it is enabled that two equations can be estimate directly by extending the simultaneous equations method using linear prediction analysis in the frequency domain, In the beginning fo this paper, we derive theoretical equation of frequency domain simulataneous equations method. Next, we presents that coefficients of feedback control filter converge in high speed more by separating in primary noise and feedback noise by using two linear prediction filters. Further more, we presents the effectiveness of applying the frequency domain adaptive algorithm against colored noise. In the end, we study about the effect that give to the noise control the estimation error of the feedback control filter.
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Keyword(in English) active noise control / simultaneous equations method / lenary prediction
Paper # EA2004-127
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Committee EA
Conference Date 2005/1/21(1days)
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Registration To Engineering Acoustics (EA)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A Method to Update the Coefficients of Feedback Control Filter Using Frequency Domain Simulataneous Equations Method under Active Noise Control
Sub Title (in English)
Keyword(1) active noise control
Keyword(2) simultaneous equations method
Keyword(3) lenary prediction
1st Author's Name Yusuke IWAMATSU
1st Author's Affiliation Faculty of Engineering, Himeji Institute of Technology()
2nd Author's Name Kensaku FUJII
2nd Author's Affiliation Faculty of Engineering, Himeji Institute of Technology
3rd Author's Name Mitsuji MUNEYASU
3rd Author's Affiliation Faculty of Engineering, Kansai University
Date 2005-01-28
Paper # EA2004-127
Volume (vol) vol.104
Number (no) 615
Page pp.pp.-
#Pages 6
Date of Issue