Optimization of power in the problems of active control of sound

J. Lončarić and S.V. Tsynkov

Mathematics and Computers in Simulation (MATCOM), 2004, vol. 65, issue 4, 323-335

Abstract: We analyze the problem of suppressing the unwanted component of a time-harmonic acoustic field (noise) on a predetermined region of interest. The suppression is rendered by active means, i.e., by introducing the additional acoustic sources called controls that generate the appropriate anti-sound. Previously, we have obtained general solutions for active controls in both continuous and discrete formulation of the problem. We have also obtained optimal solutions that minimize the L1 or L2 norm of the control sources; the physical interpretation of the former being the overall absolute acoustic source strength.

Keywords: Noise cancellation; Active control sources; Volumetric and surface controls; General solution; Monopoles and dipoles; Radiation of waves; Complex-valued quantities; Load on the sources by the field; Net power gain (search for similar items in EconPapers)
Date: 2004
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Persistent link: https://EconPapers.repec.org/RePEc:eee:matcom:v:65:y:2004:i:4:p:323-335

DOI: 10.1016/j.matcom.2004.01.005

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