TY - GEN
T1 - An intermittent RLS algorithm and its application to adaptive active wideband noise control
AU - Chen, K. A.
AU - Ma, Y. L.
N1 - Publisher Copyright:
© 1992 IEEE.
PY - 1992
Y1 - 1992
N2 - The most commonly used algorithm for an adaptive active acoustic noise controller is the filtered-x least mean square (FLMS) algorithm which has been applied successfully to active pure tone or narrowband noise control. However, the FLMS algorithm fails in active wideband noise control because of slow convergence rate and sensitivity to dispersion of eigenvalues of the noise autocorrelation matrix. Based on the principle of recursive least squares, an intermittent RLS (IRLS) algorithm is presented, which updates recursively weight coefficients of an adaptive filter at intervals. The intermittent period equals the time delay when the sound wave propagates from the secondary source to the error sensor. Analytic and simulation results show that the IRLS algorithm has excellent convergence behavior, stability and high attenuation level (AL) in comparison with the FLMS algorithm, hence this algorithm is particularly suitable for active wideband noise control. Finally, the feasibility of hardware implementation of the IRLS algorithm is discussed.
AB - The most commonly used algorithm for an adaptive active acoustic noise controller is the filtered-x least mean square (FLMS) algorithm which has been applied successfully to active pure tone or narrowband noise control. However, the FLMS algorithm fails in active wideband noise control because of slow convergence rate and sensitivity to dispersion of eigenvalues of the noise autocorrelation matrix. Based on the principle of recursive least squares, an intermittent RLS (IRLS) algorithm is presented, which updates recursively weight coefficients of an adaptive filter at intervals. The intermittent period equals the time delay when the sound wave propagates from the secondary source to the error sensor. Analytic and simulation results show that the IRLS algorithm has excellent convergence behavior, stability and high attenuation level (AL) in comparison with the FLMS algorithm, hence this algorithm is particularly suitable for active wideband noise control. Finally, the feasibility of hardware implementation of the IRLS algorithm is discussed.
UR - http://www.scopus.com/inward/record.url?scp=84988279145&partnerID=8YFLogxK
U2 - 10.1109/ISIE.1992.279535
DO - 10.1109/ISIE.1992.279535
M3 - 会议稿件
AN - SCOPUS:84988279145
T3 - IEEE International Symposium on Industrial Electronics
SP - 442
EP - 445
BT - Proceedings of the IEEE International Symposium on Industrial Electronics, ISIE 1992
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 1992 IEEE International Symposium on Industrial Electronics, ISIE 1992
Y2 - 25 May 1992 through 29 May 1992
ER -