FIR filter for a adaptive filter algorithm, is mostly used for an active noise control system. However, FIR filter needs to have more large size of the filter length than it of IIR filter. Therefore, the control system using FIR adaptive filter has slow calculation time. In the active noise control system of the short duct, the reference signal can be affected by the output signal, so IIR filter for ARMA system can be more suitable for the active noise control of the short duct than FIR filter for MA system. In this paper, the recursive LMS filter, which is adaptive IIR filter, is applicated for the active noise control inside the short duct. For faster convergence and more accurate control, a variable step size algorithm is introduced for this recursive LMS filter (R-VSSLMS filter). Using this algorithm and considering the secondary path, the filtered-u R-VSSLMS is conducted successfully on the real experiment in the short duct. The performance of the active control using the filtered-u R-VSSLMS filter, is compared with the performance of the active control using a filtered-x LMS filter.
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ASME 2008 Noise Control and Acoustics Division Conference
July 28–30, 2008
Dearborn, Michigan, USA
Conference Sponsors:
- Noise Control and Acoustics Division
ISBN:
0-7918-4839-6
PROCEEDINGS PAPER
Adaptive IIR Filter Using Variable Step Size for Active Noise Control Inside a Short Duct
Ho-Wuk Kim,
Ho-Wuk Kim
Inha University, Inchon, South Korea
Search for other works by this author on:
Sang-Kwon Lee
Sang-Kwon Lee
Inha University, Inchon, South Korea
Search for other works by this author on:
Ho-Wuk Kim
Inha University, Inchon, South Korea
Sang-Kwon Lee
Inha University, Inchon, South Korea
Paper No:
NCAD2008-73062, pp. 225-231; 7 pages
Published Online:
June 22, 2009
Citation
Kim, H, & Lee, S. "Adaptive IIR Filter Using Variable Step Size for Active Noise Control Inside a Short Duct." Proceedings of the ASME 2008 Noise Control and Acoustics Division Conference. ASME 2008 Noise Control and Acoustics Division Conference. Dearborn, Michigan, USA. July 28–30, 2008. pp. 225-231. ASME. https://doi.org/10.1115/NCAD2008-73062
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