A new method for optimizing the actuator and sensor positions applied to active noise control of semiclosed aircraft interiors is presented. This approach starts with the measurement of transfer functions between all possible actuator and sensor positions. Based on these evidences the minimum number and optimal position of the actuators and sensors are computed by optimization. The expected noise reduction and the necessary electrical inputs are calculated for the optimal configuration. These numerical results are then compared with experimental data for the optimal setup implemented into a mock-up of the semiclosed aircraft interior.
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