The use of axial splitters inside ducts for active noise control of higher order acoustic modes

2011 ◽  
Vol 59 (4) ◽  
pp. 347
Author(s):  
Maria Alzira A. Nunes ◽  
Marcus Anto^nio V. Duarte
Keyword(s):  
Noise Control ◽  
Active Noise Control ◽  
Higher Order ◽  
Acoustic Modes ◽  
Active Noise

Spatial active noise control in rooms using higher order sources

2021 ◽  
pp. 1-1
Author(s):  
Junqing Zhang ◽  
Wen Zhang ◽  
Jihui Amiee Zhang ◽  
Thushara Dheemantha Abhayapala ◽  
Lijun Zhang
Keyword(s):  
Noise Control ◽  
Active Noise Control ◽  
Higher Order ◽  
Active Noise

A Higher-Order Spectra Based Method of On-Line Secondary Path Model Identification for Active Noise Control Systems

2016 ◽  
Vol 248 ◽  
pp. 3-10 ◽  
Author(s):  
Teresa Główka ◽  
Jarosław Figwer
Keyword(s):  
Control Systems ◽  
Noise Control ◽  
Active Noise Control ◽  
Model Identification ◽  
Higher Order ◽  
Path Model ◽  
Active Noise ◽  
Nonlinear Distortions ◽  
Non Gaussian ◽  
Higher Order Spectra

The aim of this paper is to present a method of nonparametric and parametric secondary path model identification for adaptive active noise control systems with low-power non-Gaussian excitations of the form of a higher-order discrete-time multisine random process and data processing based on cross-higher-order spectra. Properties of the discussed method are illustrated by simulation experiments devoted to secondary path identification for feedforward and feedback active noise control systems. Its robustness to nonlinear distortions implied by data acquisition system and adaptation procedure is proved.

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