Détermination des positions des sources secondaires en contrôle acoustique actif

Abstract
In the field of active noise control, the quality of the results achievable is highly dependent on the secondary source locations. Two strategies to determine these positions are investigated : the first one selects the sources among many and the second one consists in finding the configuration of sources which minimise the acoustic level, requiring a method to interpolate the transfer functions. A strategy which combinate selection and minimisation is proposed and applied to a numerical vibro-acoustic modelling of aircraft cabin, leading to an improvement of the results in comparison with those achieved previously.