The Proceedings of the Symposium on Environmental Engineering
Online ISSN : 2424-2969
2009.19
Session ID : 119
Conference information
119 Active Noise Control with Moving Evaluation Point in 3 Dimensional Acoustic Field : The Method using Filter Map
Ikuma IKEDAShinya KIJIMOTOKoichi MATSUDAYosuke KOBA
Author information
CONFERENCE PROCEEDINGS FREE ACCESS

Details
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 control with filter map. In this algorithm, a control area is divided into small grids. Effectiveness of this algorithm was shown in simulations. In this paper, the validity of this algorithm is shown in several simulations and experiments in the anechoic chamber. The evaluation point moves 0.4m at the speed of 0.45m/s in experiment. A CCD camera catches a position of the point. From the experimental results, it is shown that the effectiveness of the proposed algorithm is 10dB more than the that of the direct adaptive algorithm.

Content from these authors
© 2009 The Japan Society of Mechanical Engineers
Previous article Next article
feedback
Top