FEED FORWARD ACTIVE NOISE CONTROLLING METHOD BY FEEDBACK CONTROL

摘要

adopting to a feedback controller by modeling in LMS(Least Men Square Error) method; summing up the output (y2) of the controller (W2) with controller output (y1) adopted to a feedforward controller (W1) by modeling in LMS(Least Men Square Error) method; and removing primary noise along with a duct (10) by generating control sound through a control speaker (40). The method provides controller with stability and adoptability by intensifying the feedback controller.