The Journal of the Acoustical Society of Korea
- 제15권1E호
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- Pages.84-88
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- 1996
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- 1225-4428(pISSN)
Active Tonal Noise Canceller with Frequency Tracking
- Na, Hee-Seung (Department of Mechanical Engineering, KAIST) ;
- Park, Young-Jin (Department of Mechanical Engineering, KAIST)
- 발행 : 1996.03.01
초록
In this paper, we propose a novel adaptive digital filter for tonal noise cancellation, with a frequency tracking capability. The proposed algorithm not only estimates the magnitude and phase of the tonal disturbance but also tracks its frequency, which changes in quasi-static manner. The algorithm uses the steepest descent method and the instantaneous frequency approach for the phase/magnitude estimation and frequency tracking, respectively. A number of computer simulations have been carried out in order to demonstrate the feasibility of the proposed ANC algorithm under various conditions.
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