Abstract
Narrowband active noise control (NANC) achieves good performance in controlling low-frequency periodic noise. Such control is necessary to obtain the frequency information of the primary periodic noise, including the number of frequency components and the individual frequency values, to generate reference signals. The performance of the NANC system mainly depends on the accuracy of frequency estimation of the primary periodic noise. In this article, a frequency estimator based on Bayesian inference that can obtain accurate frequencies as well as the number of frequency components is applied to a NANC system. Numerous computer simulations are conducted. Simulation results show that the proposed system outperforms a conventional NANC system with the adaptive notch filter (ANF) algorithm at low signal-to-noise-ratio (SNR) primary periodic noise.
Original language | English |
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Pages (from-to) | 299-311 |
Number of pages | 13 |
Journal | Journal of Sound and Vibration |
Volume | 455 |
DOIs | |
Publication status | Published - Sept 1 2019 |
Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2019 Elsevier Ltd
ASJC Scopus Subject Areas
- Condensed Matter Physics
- Mechanics of Materials
- Acoustics and Ultrasonics
- Mechanical Engineering
Keywords
- Adaptive notch filter
- Bayesian inference
- Frequency estimation
- Narrowband active noise control