scholarly journals Time-domain versus frequency-domain effort weighting in active noise control design

2017 ◽  
Vol 141 (1) ◽  
pp. EL11-EL15 ◽  
Author(s):  
Emmanuel Friot
Keyword(s):  
Frequency Domain ◽  
Time Domain ◽  
Noise Control ◽  
Active Noise Control ◽  
Control Design ◽  
Domain Versus ◽  
Active Noise

scholarly journals A Computationally Efficient Algorithm for Feedforward Active Noise Control Systems

Electronics ◽  
2020 ◽  
Vol 9 (9) ◽  
pp. 1504 ◽  
Author(s):  
Stefano Gaiotto ◽  
Antonino Laudani ◽  
Gabriele Maria Lozito ◽  
Francesco Riganti Fulginei
Keyword(s):  
Frequency Domain ◽  
Time Domain ◽  
Noise Control ◽  
Active Noise Control ◽  
Parameter Tuning ◽  
Processing Load ◽  
Block Basis ◽  
Active Noise ◽  
Wide Range ◽  
The Time Domain

In this paper, a novel algorithm with high computational efficiency is proposed for the filter adaptation in a feedforward active noise control system. The proposed algorithm Zero Forcing Block Adaptive Filter (ZF-BAF) performs filter adaptation on a block-by-block basis in the frequency domain. Filtering is performed in the time domain on a sample-by-sample basis. Working in the frequency domain permits us to get sub-linear complexity, whereas filtering in the time domain minimizes the latency. Furthermore, computational burden is tunable to meet specific requirements about adaptation speed and processing load. No other parameter tuning according to the working condition is required. Computer simulations, performed in different realistic cases against other high-performing time and frequency-domain algorithms, show that achievable performances are comparable, or even better, with those of the algorithms perfectly tuned for each specific case. Robustness exhibited in the tests suggests that performances are expected to be even better in a wide range of real cases where it is impossible to know a priori how to tune the algorithms.

Time-domain and frequency-domain adaptation for multichannel active noise control

2004 ◽  
Vol 37 (12) ◽  
pp. 345-350
Author(s):  
Masaki Kamata ◽  
Yuusuke Ohta ◽  
Akira Sano
Keyword(s):  
Frequency Domain ◽  
Time Domain ◽  
Noise Control ◽  
Domain Adaptation ◽  
Active Noise Control ◽  
Active Noise

scholarly journals A time domain decentralized algorithm for two channel active noise control

2020 ◽  
Vol 147 (6) ◽  
pp. 3808-3813
Author(s):  
Somanath Pradhan ◽  
Guoqiang Zhang ◽  
Xiaojun Qiu
Keyword(s):  
Time Domain ◽  
Noise Control ◽  
Active Noise Control ◽  
Active Noise

A Computationally Efficient Multichannel Active Road Noise Control System

2014 ◽  
Vol 137 (1) ◽  
Author(s):  
Jie Duan ◽  
Mingfeng Li ◽  
Teik C. Lim ◽  
Ming-Ran Lee ◽  
Ming-Te Cheng ◽  
...  
Keyword(s):  
Frequency Domain ◽  
Time Domain ◽  
Noise Control ◽  
Acoustic Noise ◽  
Reference Signal ◽  
Active Noise Control ◽  
Computational Cost ◽  
Road Noise ◽  
Time Frequency ◽  
Fxlms Algorithm

A multichannel active noise control (ANC) system has been developed for a vehicle application, which employs loudspeakers to reduce the low-frequency road noise. Six accelerometers were attached to the vehicle structure to provide the reference signal for the feedforward control strategy, and two loudspeakers and two microphones were applied to attenuate acoustic noise near the headrest of the driver's seat. To avoid large computational burden caused by the conventional time-domain filtered-x least mean square (FXLMS) algorithm, a time-frequency domain FXLMS (TF-FXLMS) algorithm is proposed. The proposed algorithm calculates the gradient estimate and filtered reference signal in the frequency domain to reduce the computational requirement, while also updates the control signals in the time domain to avoid delay. A comprehensive computational complexity analysis is conducted to demonstrate that the proposed algorithm requires significantly lower computational cost as compared to the conventional FXLMS algorithm.

Comb-partitioned Frequency-domain Constraint Adaptive Algorithm for Active Noise Control

2021 ◽  
pp. 108222
Author(s):  
Dongyuan Shi ◽  
Woon-Seng Gan ◽  
Bhan Lam ◽  
Xiaoyi Shen
Keyword(s):  
Frequency Domain ◽  
Adaptive Algorithm ◽  
Noise Control ◽  
Active Noise Control ◽  
Active Noise

scholarly journals Frequency domain simultaneous equations method for active noise control systems

2006 ◽  
Vol 120 (5) ◽  
pp. 3211-3211
Author(s):  
Tadashi Ujino ◽  
Kensaku Fujii ◽  
Mitsuji Muneyasu ◽  
Yusuke Fujita
Keyword(s):  
Frequency Domain ◽  
Control Systems ◽  
Noise Control ◽  
Active Noise Control ◽  
Simultaneous Equations ◽  
Active Noise

LMI design of frequency domain LMS filters for active noise control

2004 ◽  
Vol 37 (12) ◽  
pp. 657-662
Author(s):  
Yuji Wakasa ◽  
Tatsuya Izumi ◽  
Yutaka Yamamoto
Keyword(s):  
Frequency Domain ◽  
Noise Control ◽  
Active Noise Control ◽  
Active Noise
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