Cross-updated active noise control system with online secondary path modeling

A good active noise control (ANC) system with online secondary path modelin g should have the property that the operation of the ANC controller and the modeling of the secondary path are mutually independent. In this paper, a new ANC system with online secondary path modeling is presented. Three cros s-updated least mean square (LMS) adaptive filters are used to reduce mutua l disturbances between the operation of the ANC controller and the modeling of the secondary path, Computer simulations have been conducted and the re sults show that the proposed method is able to produce superior performance compared to existing methods.