Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Analysis of the global reduction of broadband noise in a telephone kiosk using a MIMO modal ANC system
AU - Montazeri, Allahyar
AU - Poshtan, Javad
AU - Kahaei, Mohammad Hossein
PY - 2007/2
Y1 - 2007/2
N2 - The possibility of implementation of ANC system for global reduction of broadband noise in a telephone kiosk application has been studied in this paper. By using a modal model of the acoustic environment of the enclosure the shape modes and their frequencies are obtained and suitable bandwidth for the controller design is calculated. Analysis shows that because of existing of some degenerate modes in this application, the control action is complicated. Simulation results show that how positions and number of loudspeakers and microphones will change the performance of the controller and its corresponding control effort. Based on these results and analysis a reasonable size for the controller and proper locations for sensors and actuators are proposed. Simulation results also show the effectiveness of the proposed system in reduction of the acoustic potential energy in the kiosk.
AB - The possibility of implementation of ANC system for global reduction of broadband noise in a telephone kiosk application has been studied in this paper. By using a modal model of the acoustic environment of the enclosure the shape modes and their frequencies are obtained and suitable bandwidth for the controller design is calculated. Analysis shows that because of existing of some degenerate modes in this application, the control action is complicated. Simulation results show that how positions and number of loudspeakers and microphones will change the performance of the controller and its corresponding control effort. Based on these results and analysis a reasonable size for the controller and proper locations for sensors and actuators are proposed. Simulation results also show the effectiveness of the proposed system in reduction of the acoustic potential energy in the kiosk.
KW - global reduction
KW - active noise control system
KW - ENCLOSED SOUND FIELDS
KW - MINIMIZATION
KW - ACTIVE CONTROL-SYSTEM
KW - modal analysis
U2 - 10.1016/j.ijengsci.2007.03.012
DO - 10.1016/j.ijengsci.2007.03.012
M3 - Journal article
VL - 45
SP - 679
EP - 697
JO - International Journal of Engineering Science
JF - International Journal of Engineering Science
SN - 0020-7225
IS - 2-8
ER -