An Adaptive System for Active Noise Reduction

• Autorzy: Makarewicz G. , Matuszewski G. , Morzyński L. , Zawieska W.
• Języki publikacji: EN

Abstrakty

EN

An adaptive system for active noise reduction in an acoustic duct is presented. The system is based on a modification of a least mean square (LMS) algorithm called filtered-U with on-line error path modelling. The system was assembled and examined on a laboratory test stand in the Laboratory of Active Noise Reduction Methods of the Central Institute for Labour Protection (Warsaw, Poland). The structure of the stand, the block structure of the active noise reduction system, the basic assumption concerning the applied adaptive algorithm, and examples of measured effectiveness of the system for various kinds of noise are presented.

Słowa kluczowe

EN

noise reduction; active cancellation; adaptive system; low frequency noise

PL

warunki pracy; system adaptacyjny; redukcja szumu

• Wydawca: Taylor & Francis
• Czasopismo: International Journal of Occupational Safety and Ergonomics
• Rocznik: 2000
• Tom: Zeszyt Specjalny
• Strony: 13--22
• Opis fizyczny: Bibliogr. 4 poz., rys., tab., wykr.

Twórcy

autor

Makarewicz G.

• Department of Noise and Electromagnetic Hazards, Central Institute for Labour Protection, Warsaw, Poland

autor

Matuszewski G.

• Department of Noise and Electromagnetic Hazards, Central Institute for Labour Protection, Warsaw, Poland

autor

Morzyński L.

• Department of Noise and Electromagnetic Hazards, Central Institute for Labour Protection, Warsaw, Poland

autor

Zawieska W.

• Department of Noise and Electromagnetic Hazards, Central Institute for Labour Protection, Warsaw, Poland

Bibliografia

• 1.Engel, Z. (1993). Ochrona środowiska przed drganiami i hałasem [Protection of the environment from vibrations and noise], Warsaw, Poland: Państwowe Wydawnictwo Naukowe.
• 2.Eriksson, L.J. (1991). Development of the filtered-U algorithm for active noise control. Journal of the Acoustical Society of America, 89(1), 257-265.
• 3.Makarewicz, G., Zawieska, W., Matuszewski, G., & Morzyński, L. (1998). Optymalizacja układu aktywnej kompensacji parametrów pola akustycznego pod kątem stabilności pracy w warunkach rzeczywistych [Improvement of the system of active balance of acoustic field parameters in the context of stability of work in real conditions]. Unpublished report on research task SPR-1, No. 03.8.11, check point 1, Central Institute for Labour Protection, Warsaw, Poland.
• 4.Rutkowski, L. (1994). Filtry adaptacyjne i adaptacyjne przetwarzanie sygnałów [Adaptive filters and adaptive signals processing], Warsaw, Poland: Wydawnictwa Naukowo-Techniczne.