TY - JOUR
T1 - A narrowband active noise control system with a frequency estimator
AU - Wang, Lei
AU - Chen, Kean
AU - Xu, Jian
N1 - Publisher Copyright:
Copyright © 2021 The Institute of Electronics, Information and Communication Engineers
PY - 2021
Y1 - 2021
N2 - A narrowband active noise control (NANC) system is very effective for controlling low-frequency periodic noise. A frequency mismatch (FM) with the reference signal will degrade the performance or even cause the system to diverge. To deal with an FM and obtain an accurate reference signal, NANC systems often employ a frequency estimator. Combining an autoregressive predictive filter with a variable step size (VSS) all-pass-based lattice adaptive notch filter (ANF), a new frequency estimation method is proposed that does not require prior information of the primary signal, and the convergence characteristics are much improved. Simulation results show that the designed frequency estimator has a higher accuracy than the conventional algorithm. Finally, hardware experiments are carried out to verify the noise reduction effect.
AB - A narrowband active noise control (NANC) system is very effective for controlling low-frequency periodic noise. A frequency mismatch (FM) with the reference signal will degrade the performance or even cause the system to diverge. To deal with an FM and obtain an accurate reference signal, NANC systems often employ a frequency estimator. Combining an autoregressive predictive filter with a variable step size (VSS) all-pass-based lattice adaptive notch filter (ANF), a new frequency estimation method is proposed that does not require prior information of the primary signal, and the convergence characteristics are much improved. Simulation results show that the designed frequency estimator has a higher accuracy than the conventional algorithm. Finally, hardware experiments are carried out to verify the noise reduction effect.
KW - Adaptive notch filter
KW - Frequency estimation
KW - Narrowband active noise control
UR - http://www.scopus.com/inward/record.url?scp=85114385782&partnerID=8YFLogxK
U2 - 10.1587/transfun.2020EAP1106
DO - 10.1587/transfun.2020EAP1106
M3 - 文章
AN - SCOPUS:85114385782
SN - 0916-8508
VL - E104A
SP - 1284
EP - 1292
JO - IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
JF - IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
IS - 9
ER -