发明名称 |
Variable Bandwidth Delayless Subband Algorithm For Broadband Active Noise Control System |
摘要 |
An active noise control (ANC) system includes a speaker and one or more processors programmed to implement a delayless subband filtered-x least mean square control algorithm. The algorithm includes a variable bandwidth discrete Fourier transform filter bank having a number of subbands such that the system, in response to a broadband white noise reference signal indicative of road noise in the vehicle, exhibits a uniform gain spectrum across a frequency range defined by the subbands and partially cancels the road noise via output of the speaker. |
申请公布号 |
US2016163305(A1) |
申请公布日期 |
2016.06.09 |
申请号 |
US201414563199 |
申请日期 |
2014.12.08 |
申请人 |
Ford Global Technologies, LLC ;University of Cincinnati |
发明人 |
Lee Ming-Ran;Abe Takeshi;Cheng Ming-te;Vanhaaften Frederick Wayne;Na Liqun;Lim Teik;Li Mingfeng;Sun Guohua;Feng Tao |
分类号 |
G10K11/175 |
主分类号 |
G10K11/175 |
代理机构 |
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代理人 |
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主权项 |
1. A vehicle comprising:
an active noise control system including a processor to implement a delayless subband filtered-x least mean square control algorithm including a variable bandwidth discrete Fourier transform filter bank having a number of subbands such that the system, in response to a broadband white noise reference signal indicative of road noise in the vehicle, exhibits a uniform gain spectrum across a frequency range defined by the subbands and partially cancels the road noise. |
地址 |
Dearborn MI US |