FXLMS with Multiple Error Switching for Active Noise-Cancelling Casings

• Autorzy: Mazur Krzysztof , Wrona Stanislaw , Chraponska Anna , Rzepecki Jaroslaw , Pawelczyk Marek

Identyfikatory

DOI

10.24425/aoa.2019.129732

• Języki publikacji: EN

Abstrakty

EN

Passive noise reduction methods require thick and heavy barriers to be effective for low frequencies and those clasical ones are thus not suitable for reduction of low frequency noise generated by devices. Active noise-cancelling casings, where casing walls vibrations are actively controlled, are an interesting alternative that can provide much higher low-frequency noise reduction. Such systems, compared to classical ANC systems, can provide not only local, but also global noise reduction, which is highly expected for most applications. For effective control of casing vibrations a large number of actuators is required. Additionally, a high number of error sensors, usually microphones that measure noise emission from the device, is also required. All actuators have an effect on all error sensors, and the control system must take into account all paths, from each actuator to each error sensor. The Multiple Error FXLMS has very high computational requirements. To reduce it a Switched-Error FXLMS, where only one error signal is used at the given time, have been proposed. This, however, significantly reduces convergence rate. In this paper an algorithm that uses multiple errors at once, but not all, is proposed. The performance of various algorithm variants is compared using simulations with the models obtained from real active-noise cancelling casing.

Słowa kluczowe

EN

active noise control; adaptive control; active casing

• Wydawca: Instytut Podstawowych Problemów Techniki PAN ; Komitet Akustyki PAN ; Polskie Towarzystwo Akustyczne
• Czasopismo: Archives of Acoustics
• Rocznik: 2019
• Tom: Vol. 44, No. 4
• Strony: 775--782
• Opis fizyczny: Bibliogr. 20 poz., fot., rys., tab., wykr.

Twórcy

autor

Mazur Krzysztof

• Silesian University of Technology, Institute of Automatic Control, Akademicka 16, 44-100 Gliwice, Poland

autor

Wrona Stanislaw

• Silesian University of Technology, Institute of Automatic Control, Akademicka 16, 44-100 Gliwice, Poland

autor

Chraponska Anna

• Silesian University of Technology, Institute of Automatic Control, Akademicka 16, 44-100 Gliwice, Poland

autor

Rzepecki Jaroslaw

• Silesian University of Technology, Institute of Automatic Control, Akademicka 16, 44-100 Gliwice, Poland

autor

Pawelczyk Marek

• Silesian University of Technology, Institute of Automatic Control, Akademicka 16, 44-100 Gliwice, Poland

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).