Mohammad Janatul I, Elliott Stephen J, Mackay Andy
Institute of Sound and Vibration Research, University of Southampton, Southampton SO17 1BJ, United Kingdom.
J Acoust Soc Am. 2008 Apr;123(4):1838-41. doi: 10.1121/1.2836745.
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.
本文通过无约束频域优化研究了车辆前馈主动控制系统中参考传感器的各种配置的有效性。一个模型问题的结果基于汽车面板振动与封闭声场之间的完全耦合分析。这些结果表明，在位置正确的情况下，尽管存在许多不相关的主要干扰，但只需要少量的麦克风或加速度计就能提供良好的整体性能。道路测试数据也预测了类似的结果。
