一种应对非平稳频率失调的窄带主动噪声控制系统

黄博妍; 常琳; 马亚平; 孙金玮; 魏国

doi:10.16383/j.aas.2015.c130797

一种应对非平稳频率失调的窄带主动噪声控制系统

doi: 10.16383/j.aas.2015.c130797

1.
哈尔滨工业大学电气工程及自动化学院哈尔滨 150001

基金项目:

国家自然科学基金(61171183;2012)航天支撑基金(01320214)资助

详细信息

作者简介:
黄博妍哈尔滨工业大学电气工程及自动化学院讲师.主要研究方向为信号与信息处理,主动噪声控制理论.E-mail:byhuang@hit.edu.cn

通讯作者:
魏国哈尔滨工业大学电气工程及自动化学院教授.主要研究方向为传感技术和自适应信号处理.本文通信作者.E-mail:wg_weiguo@yahoo.com.cn

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- 文章访问数: 2001
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- 被引次数: 21
出版历程
- 收稿日期: 2013-08-26
- 修回日期: 2014-03-14
- 刊出日期: 2015-01-20

A New Narrowband ANC System against Nonstationary Frequency Mismatch

1.
School of Electrical Engineering and Automation, Harbin Institute of Technology, Harbin 150001

Funds:

Supported by National Natural Science Foundation of China (61171183) and 2012 Aerospace Support Fund (01320214)

摘要

摘要: 在窄带主动噪声控制(Active noise control, ANC)系统中, 参考信号频率失调(Frequency mismatch, FM)和噪声信号非平稳将会使系统性能下降, 甚至失效. 本文提出一种基于动量最小均方的改进FM补偿算法, 通过在代价函数中引入加权累加的平方误差, 提升系统的追踪和收敛能力. 并分别与基于滤波-X 最小均方(Filtered -X least mean square, FXLMS)、滤波-X 递归最小二乘(Filtered -X recursive least square, FXRLS)和变步长滤波-X最小均方(Variable step-size filtered -X least mean square, VSS-FXLMS)算法的主控制系统结合, 共同完成系统综合性能的提高. 大量仿真分析表明, 新的FM补偿算法在非平稳的FM和离散傅里叶系数翻转的条件下仍能保持较高的追踪能力和合理的残余误差.
- 窄带主动噪声控制 /
- 频率失调补偿 /
- 非平稳噪声 /
- 动量最小均方 /
- 变步长滤波-X最小均方
Abstract: A frequency mismatch (FM) compensation method is proposed for the narrowband active noise control (ANC) system to solve the problem of large nonstationary FM. Inspired by the momentum least mean square (LMS) theory, a new recursion algorithm for the updating of frequency compensation sequence is derived by incorporating a weighted accumulated square error into the cost function, and applied to the conventional filtered -X least mean square (FXLMS), filtered -X recursive least square (FXRLS), and variable step-size filtered -X LMS (VSS-FXLMS) algorithms, respectively. In both stationary and nonstationary environments, extensive simulations show that the proposed FM compensation method combined with the VSS-FXLMS based main controller possesses excellent tracking ability and is fast convergent.

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参考文献(21)

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