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Browsing by Subject "active noise reduction"

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    Item type:Article, Access status: Open Access ,
    Control and identification algorithms for acoustic noise reduction
    (Wydawnictwa AGH, 2007) Figwer, Jarosław; Czyż, Krzysztof; Główka, Teresa; Kasprzyk, Jerzy; Michalczyk, Małgorzata I.; Pawełczyk, Marek
    The aim of the paper is to present main aspects of a research project on active noise reduction being performed at the Computer Control System Group, which is a part of the Institute of Automatic Control, Silesian University of Technology, Gliwice, Poland. In particular, the following problems are dealt with: higher order spectra in off-line and on-line identification of electro-acoustic plants for active noise reduction systems; creating distributed local zones of quiet in a reverberant enclosure using two structures: based on spatially distributed transducers controlled by a central unit or implemented as decentralized systems; development and analysis of optimal and adaptive feedback systems for generating zones of quiet at desired locations; enhancement of active noise reduction efficiency using nonuniform signal sampling and oversampling techniques; design and implementation of a portable multi-channel active noise control platform.