A model-based approach to active noise cancellation using loudspeaker array

Publication Type  Conference Paper
Year of Publication  1997
Authors  Gu, J; Yau, SF
Conference Name  Acoustics, Speech, and Signal Processing, 1997. ICASSP-97., 1997 IEEE International Conference on
Volume  1
Pagination  379-382
Conference Start Date  21/04/1997
Conference Location  Munich, Germany
ISBN Number  0-8186-7919-0
Key Words  acoustic noise; acoustic signal processing; acoustic transducer arrays; acoustic wave propagation; active noise control; adaptive signal processing; array signal processing; direction-of-arrival estimation; error analysis; least mean squares methods
Abstract   This paper presents a new model-based adaptive noise cancellation system using a loudspeaker array and an error sensor array which can be used to reduce the noise in a specific three-dimensional region. First, open loop system transfer functions are designed using a theoretical propagation model. The transfer functions thus found are regarded as the nominal values for the complete system. Second, to compensate for deviations from the theoretical model, the transfer functions are adapted using error measures from the error sensor array by the LMS algorithm. Computer simulation results shows that our approach is effective for noise reduction in 3-D space. Experiments using real-time active noise control hardware also confirms the performance of the system.
URL  http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=599652
DOI  10.1109/ICASSP.1997.599652
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