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Published in 2018 at "Applied Acoustics"
DOI: 10.1016/j.apacoust.2017.12.029
Abstract: Abstract A Hybrid Active Noise Control (HANC) system is used to attenuate disturbances in a scenario where a portion of noise is captured by reference sensors. In such scenarios, the secondary path continuously changes due…
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Keywords:
active noise;
secondary path;
hanc;
system ... See more keywords
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Published in 2019 at "Applied Acoustics"
DOI: 10.1016/j.apacoust.2019.05.017
Abstract: Abstract The nonlinearities of active control systems are the main factors that deteriorate noise-reduction performance. To improve the performance of a control system with a nonlinear secondary path, a filtered-x least mean square algorithm using…
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Keywords:
control;
control system;
nonlinear secondary;
system nonlinear ... See more keywords
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Published in 2020 at "Applied Acoustics"
DOI: 10.1016/j.apacoust.2019.107031
Abstract: Abstract A two-stage active noise control (ANC) system is proposed for non-stationary environments: a secondary-path filtering (SPF) stage and a control filtering (CF) stage. The secondary-path filter is roughly trained as quickly as possible in…
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Keywords:
control;
path filter;
secondary path;
filter ... See more keywords
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Published in 2020 at "Applied Acoustics"
DOI: 10.1016/j.apacoust.2020.107252
Abstract: Abstract Time-varying primary and secondary paths in active control systems degrade the noise control performance. In this paper, a practical method is proposed for active control systems with online secondary path modelling using the decorrelated…
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Keywords:
method;
path modelling;
secondary path;
path ... See more keywords
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Published in 2019 at "Mechanical Systems and Signal Processing"
DOI: 10.1016/j.ymssp.2018.05.018
Abstract: Abstract Narrowband active noise control (ANC) conventionally uses the waveform synthesis method in which a synchronization signal is essential. In addition to this, to update the parameters of the controller, prior estimation of the secondary…
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Keywords:
signal secondary;
path;
synchronization signal;
algorithm ... See more keywords
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Published in 2019 at "Mechanical Systems and Signal Processing"
DOI: 10.1016/j.ymssp.2018.10.030
Abstract: Abstract So far only model-based approaches have been proposed for active control of planetary gearbox vibration. However their performance depends strongly on the quality of the used models. To overcome this problem a novel algorithm…
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Keywords:
secondary path;
vibration;
control;
planetary gearbox ... See more keywords
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Published in 2021 at "Mechanical Systems and Signal Processing"
DOI: 10.1016/j.ymssp.2020.107193
Abstract: Abstract Active noise control (ANC) provides an efficient way for eliminating low-frequency noise, whereas accurate controlling non-stationary noise of rotating machinery under time-variant secondary path is still a major challenge. To address this, a novel…
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Keywords:
time;
variant secondary;
secondary path;
time variant ... See more keywords
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Published in 2021 at "IEEE Access"
DOI: 10.1109/access.2021.3105902
Abstract: Active noise control algorithms undergo stability problems in the presence of impulsive noise. This paper investigates such algorithms with online secondary path modeling for impulsive noise and varying acoustic paths. The paper presents three methods…
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Keywords:
control;
online secondary;
path modeling;
secondary path ... See more keywords
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3
Published in 2022 at "IEEE Signal Processing Letters"
DOI: 10.1109/lsp.2021.3130023
Abstract: Active noise control (ANC) systems are widely used to cancel unwanted noise. However, for high-level noise, the residual error signal cannot be fully eliminated because of the nonlinearity of the secondary path, resulting in the…
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Keywords:
secondary path;
path decoupled;
active noise;
path ... See more keywords
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Published in 2022 at "IEEE Transactions on Instrumentation and Measurement"
DOI: 10.1109/tim.2022.3196440
Abstract: Active noise control (ANC) usually adopts the filtered-x least mean square (FxLMS) algorithm. However, the FxLMS algorithm requires the identification of the secondary path. Problems of time-varying secondary path and imperfect secondary path modeling require…
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Keywords:
secondary path;
noise;
active noise;
artificial bee ... See more keywords
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Published in 2021 at "Actuators"
DOI: 10.3390/act10070150
Abstract: The active hydraulic mount with solenoid actuator (AHM-SNA) does not require permanent magnets, is of low cost, and has attracted wide attention. This paper focuses on each link of the secondary path in AHM-SNA, the…
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Keywords:
hydraulic mount;
force;
secondary path;
actuator ... See more keywords