title: The performance of active control of random noise in cars.
abstract: This letter investigates the effectiveness of various configurations of reference sensors for feedforward active control systems in vehicles using unconstrained frequency domain optimization. The results from a model problem are based on a fully coupled analysis between the vibration of a car panel and an enclosed acoustic field. These suggest that with correct locations, only a small number of microphones or accelerometers are needed to give good overall performance, despite many uncorrelated primary disturbances being present. Similar results are predicted from road test data.
authors.affiliation: Institute of Sound and Vibration Research, University of Southampton, Southampton SO17 1BJ, United Kingdom. janatul@utem.edu.my
authors.forename: Janatul I
authors.initials: JI
authors.lastname: Mohammad
authors.forename: Stephen J
authors.initials: SJ
authors.lastname: Elliott
authors.forename: Andy
authors.initials: A
authors.lastname: Mackay