Real-Time Detection of Unstable Control Loop Behavior in a Feedback Active Noise Cancellation System for In-Ear Headphones

Sven Hoeber; Christian Pape; Eduard Reithmeier

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Real-Time Detection of Unstable Control Loop Behavior in a Feedback Active Noise Cancellation System for In-Ear Headphones

机译：入耳式耳机反馈主动降噪系统中不稳定控制环行为的实时检测

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摘要

Active noise controls are used in a wide field of applications to cancel out unwanted surrounding noise. Control systems based on the feedback structure however have the disadvantage that they may become unstable during run-time due to changes in the control path-in this context including the listener's ear. Especially when applied to active noise cancellation (ANC) headphones, the risk of instability is associated with the risk of harmful influence on the listener's ear, which is exposed to the speaker in striking distance. This paper discusses several methods to enable the analysis of a feedback ANC system during run-time to immediately detect instability. Finally, a solution is proposed, which identifies the open loop behavior parametrically by means of an adaptive filter to subsequently evaluate the coefficients regarding stability.

机译：有源噪声控制在广泛的应用领域中被使用，以消除不需要的周围噪声。但是，基于反馈结构的控制系统的缺点是，在运行时由于控制路径的更改，它们可能变得不稳定（在这种情况下，包括收听者的耳朵）。尤其是当应用于主动降噪（ANC）耳机时，不稳定的风险与对听者的耳朵产生有害影响的风险相关，而听者的耳朵在醒目的距离内暴露于扬声器。本文讨论了几种方法，可以在运行时对反馈ANC系统进行分析，以立即检测不稳定性。最后，提出了一种解决方案，该解决方案通过自适应滤波器在参数上识别开环行为，以随后评估有关稳定性的系数。

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《Engineering》 |2015年第12期|796-802|共7页
作者
Sven Hoeber; Christian Pape; Eduard Reithmeier;
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作者单位

Institute of Measurement and Automatic Control, Leibniz University Hanover, Hanover, Germany;

Institute of Measurement and Automatic Control, Leibniz University Hanover, Hanover, Germany;

Institute of Measurement and Automatic Control, Leibniz University Hanover, Hanover, Germany;

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正文语种 eng
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关键词
Active Noise Control; Feedback; Stability; Real-Time Analysis;

机译：主动噪音控制;反馈;稳定性;实时分析;

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1. Real-Time Detection of Unstable Control Loop Behavior in a Feedback Active Noise Cancellation System for In-Ear Headphones [J] . Sven H?ber, Christian Pape, Eduard Reithmeier Engineering . 2015,第12期

机译：入耳式耳机反馈有源降噪系统中不稳定控制环行为的实时检测
2. A High-Performance Feedback FxLMS Active Noise Cancellation VLSI Circuit Design for In-Ear Headphones [J] . Vu Hong-Son, Chen Kuan-Hung Circuits, systems, and signal processing . 2017,第7期

机译：入耳式耳机高性能反馈FxLMS有源降噪VLSI电路设计
3. An optimization framework for designing robust cascade biquad feedback controllers on active noise cancellation headphones [J] . Wang Jiajie, Zhang Jinhui, Xu Jian, Applied Acoustics . 2021,第Auga期

机译：用于在活动噪声消除耳机上设计强大的级联双路反馈控制器的优化框架
4. Active noise cancellation in headphones by digital robust feedback control [C] . Stefan Liebich, Carlotta Anemüller, Peter Vary, European Signal Processing Conference . 2016

机译：强大的数字反馈控制可消除耳机中的主动噪声
5. Active noise control system with impulsive noise cancellation capability [D] . Wu, Xianwen. 2013

机译：具有冲动噪声消除功能的主动噪声控制系统
6. An experimental model to measure the ability of headphones with active noise control to reduce patient’s exposure to noise in an intensive care unit [O] . Stuart Gallacher, Doyo Enki, Sian Stevens, 2017

机译：一个实验模型用于测量具有主动噪音控制功能的耳机的功能以减少患者在重症监护室中的噪音暴露
7. Real-Time Detection of Unstable Control Loop Behavior in a Feedback Active Noise Cancellation System for In-Ear Headphones [O] . Sven Höber, Christian Pape, Eduard Reithmeier 2015

机译：用于内耳耳机反馈有源噪声消除系统中不稳定控制环行为的实时检测

Real-Time Detection of Unstable Control Loop Behavior in a Feedback Active Noise Cancellation System for In-Ear Headphones

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