Presentation 2009-12-17
A Robust Pre-inverse Adaptive System for Noise and Its Application to Active Noise Canceller
Masaki KOBAYASHI, Hiroyuki KONDO, Naoto SASAOKA, Yoshio ITOH,
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Abstract(in English) In general, the adaptive system using the structure in which an adaptive filter is placed before the unknown system to estimate the inverse transfer function of the unknown system is called pre-inverse adaptive system. The equalizing type adaptive system that the weights of the adaptive transversal filter inserted after the unknown system are copied to the transversal filter inserted before the system is the representative example. The problem of this system is that the convergence value has the bias error since the adaptive parameters are updated to the direction where the noise power was minimized. In this paper we consider a robust equalizing type adaptive system for the noise and its application to the active noise canceller. The convergence of active noise canceller is guaranteed under the assumption of the independence property of the noise, input signal and dither signal. Finally, these results of theoretical consideration are verified by computer simulation.
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Keyword(in English) Adaptive Filter / Digital Control / Active Noise Canceller / Correlation Function / Signal Processing
Paper # SIS2009-37
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Conference Date 2009/12/10(1days)
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Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A Robust Pre-inverse Adaptive System for Noise and Its Application to Active Noise Canceller
Sub Title (in English)
Keyword(1) Adaptive Filter
Keyword(2) Digital Control
Keyword(3) Active Noise Canceller
Keyword(4) Correlation Function
Keyword(5) Signal Processing
1st Author's Name Masaki KOBAYASHI
1st Author's Affiliation Graduate school of Engineering, Chubu University()
2nd Author's Name Hiroyuki KONDO
2nd Author's Affiliation Graduate school of Engineering, Chubu University
3rd Author's Name Naoto SASAOKA
3rd Author's Affiliation Graduate school of Engineering, Tottori University
4th Author's Name Yoshio ITOH
4th Author's Affiliation Graduate school of Engineering, Tottori University
Date 2009-12-17
Paper # SIS2009-37
Volume (vol) vol.109
Number (no) 338
Page pp.pp.-
#Pages 6
Date of Issue