The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Sistem kawalan hingar aktif jalur sempit (NANC) sangat berkesan untuk mengawal hingar berkala frekuensi rendah. Ketakpadanan frekuensi (FM) dengan isyarat rujukan akan merendahkan prestasi malah menyebabkan sistem menyimpang. Untuk menangani FM dan mendapatkan isyarat rujukan yang tepat, sistem NANC sering menggunakan penganggar frekuensi. Menggabungkan penapis ramalan autoregresif dengan penapis takuk penyesuaian (ANF) berasaskan kekisi pembolehubah saiz langkah (VSS) semua-laluan, kaedah anggaran frekuensi baharu dicadangkan yang tidak memerlukan maklumat awal isyarat utama, dan ciri penumpuan adalah banyak. bertambah baik. Keputusan simulasi menunjukkan bahawa penganggar frekuensi yang direka mempunyai ketepatan yang lebih tinggi daripada algoritma konvensional. Akhir sekali, eksperimen perkakasan dijalankan untuk mengesahkan kesan pengurangan hingar.
Lei WANG
Northwestern Polytechnical University
Kean CHEN
Northwestern Polytechnical University
Jian XU
Northwestern Polytechnical University
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Salinan
Lei WANG, Kean CHEN, Jian XU, "A Narrowband Active Noise Control System with a Frequency Estimator" in IEICE TRANSACTIONS on Fundamentals,
vol. E104-A, no. 9, pp. 1284-1292, September 2021, doi: 10.1587/transfun.2020EAP1106.
Abstract: 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.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/transfun.2020EAP1106/_p
Salinan
@ARTICLE{e104-a_9_1284,
author={Lei WANG, Kean CHEN, Jian XU, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={A Narrowband Active Noise Control System with a Frequency Estimator},
year={2021},
volume={E104-A},
number={9},
pages={1284-1292},
abstract={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.},
keywords={},
doi={10.1587/transfun.2020EAP1106},
ISSN={1745-1337},
month={September},}
Salinan
TY - JOUR
TI - A Narrowband Active Noise Control System with a Frequency Estimator
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 1284
EP - 1292
AU - Lei WANG
AU - Kean CHEN
AU - Jian XU
PY - 2021
DO - 10.1587/transfun.2020EAP1106
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E104-A
IS - 9
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - September 2021
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.
ER -