Subband active noise control algorithm based on a delayless subband adaptive filter architecture

Jeong-Hyeon Yun Jeong-Hyeon Yun,Dae-Hee Youn Dae-Hee Youn,Young-Cheol Park Young-Cheol Park

doi:10.1109/icassp.1997.599655

Jeong-Hyeon Yun Jeong-Hyeon Yun, Dae-Hee Youn Dae-Hee Youn + Show 1 more

https://doi.org/10.1109/icassp.1997.599655

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Publication Date: Apr 21, 1997

Citations: 4

Affiliation: Yonsei University, Samsung (South Korea)

Abstract

In this paper, a new active noise control algorithm based on a delayless subband adaptive filter architecture is presented. Also, an on-line system identification method implemented in the subband structure is suggested. To implement the filtered-x LMS algorithm in the subband structure, the secondary path transfer function is decomposed into sets of subband functions. The two filter on-line modeling algorithm is then applied to each subband to estimate the secondary-path transfer function in a decomposed form. In this manner, the computational load for the on-line system identification is reduced by a factor 3 compared with the wideband approach. Simulation results are presented to show the efficiency of the new ANC algorithm and the performance of the on-line system identification scheme.

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