发明名称 |
Active noise control system |
摘要 |
The present disclosure relates to an active noise control (ANC) system. In accordance with one aspect of the invention, the ANC system includes a plurality of microphones and a plurality of loudspeakers. Each microphone is configured to provide an error signal that represents a residual noise signal. Each loudspeaker is configured to receive a loudspeaker signal and to radiate a respective acoustic signal. The ANC system further includes an adaptive filter bank, which is supplied with a reference signal and configured to filter the reference signal to provide the loudspeaker signals as filtered signals. The filter characteristics of the adaptive filter bank are adapted such that a cost function is minimized. The cost function thereby represents the weighted sum of the squared error signals. |
申请公布号 |
EP2884488(A1) |
申请公布日期 |
2015.06.17 |
申请号 |
EP20130197417 |
申请日期 |
2013.12.16 |
申请人 |
HARMAN BECKER AUTOMOTIVE SYSTEMS GMBH |
发明人 |
CHRISTOPH, MARKUS;WURM, MICHAEL |
分类号 |
G10K11/178 |
主分类号 |
G10K11/178 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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