Active reduction of low-frequency tire impact noise using digital feedback control

被引：2

作者：

Costin, Mark H. ^{[1
]}

Elzinga, Donald R. ^{[1
]}

机构：

[1] Gen Motors Research Lab, Warren, MI,, USA

来源：

IEEE Control Systems Magazine | 1989年 / 9卷 / 05期

关键词：

Amplifiers - Control Systems--Theory - Electric Filters - Headphones - Microphones;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Feedback control theory is used to develop an active noise control system to reduce transient-induced road noise in a vehicle interior. The system consists of a detector microphone, a high-speed digital digital-to-analog conversion) and then amplified and sent to the headphone near the drivers' ear. Two control algorithms are evaluated. A proportional-integral controller reduced the noise by about 5 dB over the 20-60-Hz range. A modified generalized minimum-variance controller was able to reduce the noise by about 10 dB for the 25-60-Hz range.

引用

页码：3 / 6