Abstract
On active noise control in 3-dimensional acoustic field, a control effect becomes worse when an evaluation point moves. Against this problem, we proposed a control algorithm using filter map. Validity of this algorithm was shown by simulations and experiments. To use the method, however, the adaptive filters must be accumulated in a controller so that the required memory becomes large. Moreover, highly computational power is necessary. Therefore, reduction of both required memory and computational power is necessary. In this paper, a method for the reduction is proposed. In the method, IIR filter and Steiglitz-McBride algorithm are used. The validity of proposed method is shown by experiments.
