Active Noise Reduction Algorithm Based on NOTCH Filter and Genetic Algorithm

• Autorzy: Górski P. , Morzyński L.
• Języki publikacji: EN

Abstrakty

EN

Application of active noise reduction (ANR) systems in hearing protectors requires the use of control algorithms to ensure stability of the ANR system and at the same time highly effective active noise reduction. A control algorithm based on NOTCH filters is an example of solutions that meet these criteria. Their disadvantage is operation over a narrow frequency band and a need for prior determination of frequencies to be reduced. This paper presents a solution of the ANR system for hearing protectors which is controlled with the use of modified NOTCH filters with parameters determined by a genetic algorithm. Application of a genetic algorithm allows to change the NOTCH filter reference signal frequency, and thus, adapt the filter to the reduced signal frequency.

Słowa kluczowe

EN

active noise reduction; hearing protectors

• Wydawca: Instytut Podstawowych Problemów Techniki PAN ; Komitet Akustyki PAN ; Polskie Towarzystwo Akustyczne
• Czasopismo: Archives of Acoustics
• Rocznik: 2013
• Tom: Vol. 38, No. 2
• Strony: 185--190
• Opis fizyczny: Bibliogr. 16 poz., wykr.

Twórcy

autor

Górski P.

• Central Institute for Labour Protection – National Research Institute Czerniakowska 16, 00-701 Warszawa, Poland

autor

Morzyński L.

• Central Institute for Labour Protection – National Research Institute Czerniakowska 16, 00-701 Warszawa, Poland

Bibliografia

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