Simulation Study of Active Noise Control in a 4T MRI Scanner
Lee J, Lim T, Li M
University of Cincinnati, University of Cincinnati
A variety of methods have been proposed to reduce acoustic noise emission during MRI scans, but few investigators are pursuing active acoustic noise control due to its complexity. In this study, we are investigating various ANC control system including feed-forward only and feed-back only as well as a hybrid ANC system that incorporates both feed-forward and feed-back controls for the feasibility of reducing MRI noise. In this preliminary report, the simulation results show that the hybrid system performs better than the feed-forward or feed-back controller alone.