Open Access
 Issue JNWPU Volume 40, Number 6, December 2022 1242 - 1249 https://doi.org/10.1051/jnwpu/20224061242 10 February 2023

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

ANC系统的复杂性和自适应性要求系统中的次级声源应具有较好的声学性能和高可靠性。这使得对次级声源在工作中的实时故障检测研究显得格外重要。现有的扬声器故障检测方法多针对实验室环境下的产品质量检测或测试, 而少数的在线扬声器故障检测方法计算复杂, 对硬件性能要求高, 且无法满足有源噪声控制中次级声源输出特性, 会增加额外的干扰而影响降噪效果。

## 1 故障检测原理

### 1.1 系统原理

 图1次级声源阻抗曲线模型

### 1.3 检测方法

R(f)取绝对值并求对数幅度Z(f)，如(12)式所示

n0Z(f)的最大值Zmax对应的队列序号, 则次级声源的最低共振频率f0为阻抗曲线幅度最大值Zmax对应的频率值, 即有

Zn1Zn2即为要求的Zf1Zf2, 则对应f1f2的值为

## 2 仿真及实验结果分析

### 2.1 仿真模型

 图2不同损坏程度次级声源的滤波器系数曲线
 图3不同损坏程度次级声源的幅频特性曲线
 图4涡桨飞机噪声频谱

### 2.2 数值分析

 图5正常状态不同噪声的阻抗曲线
 图6飞机声激励不同状态次级声源阻抗曲线

### 2.4 故障检测阈值及误报率分析

 图7测试样本Δf0和ΔQ分布图

## References

1. ELLIOTT S J, NELSON P A, et al. Active noise control[J]. Signal Processing Magazine, 1993, 10(4): 12–35 [Article] [CrossRef] [Google Scholar]
2. CHEN Kean. Active noise control[M]. Beijing: Aotion Defence Indeustny Press, 2014 (in Chinese) [Google Scholar]
3. RAFAELY B, ELLIOTT S J, GARCIA-BONITO J. Broadband performance of an active headrest[J]. The Journal of Acoustic of Society of America, 1999, 106(2): 787–793 [Article] [NASA ADS] [CrossRef] [Google Scholar]
4. WANG Lei, CHEN Kean, XU Jian, et al. Noise control with Kalman filter for active headrest[J]. Journal of Northwestern Polytechnical University, 2021, 39(5): 937–944 [Article] [Article] (in Chinese) [NASA ADS] [CrossRef] [EDP Sciences] [Google Scholar]
5. LI Nan, YANG Feiran, YANG Jun. An adaptive active noise method without an error microphone based on virtual microphone technique[J]. Journal of Applied Acoustics, 2019, 38(1): 85–92 [Article] (in Chinese) [Google Scholar]
6. DAVY M, DONCARLI C. A new nonstationary test procedure for improved loudspeaker fault detection[J]. Journal of the Audio Engineering Society, 2002, 50(6): 458–469 [Google Scholar]
7. WENHUA G, YUMING Q. A method of loudspeaker's pure tone fault detection based on time-frequency image fractal[J]. Recent Patents on Signal Processing, 2014, 4: 116–123 [Google Scholar]
8. ZHOU Jinglei, WEI Yanhui, ZHU Zengyou, et al. Audio measurement system harmonic analysis based on retangular convolution window[J]. Audio Engineering, 2011, 35(2): 71–74 [Article] (in Chinese) [Google Scholar]
9. VALK R. Control of voicecoil transducers: design and implementation of a motional feedback loudspeaker woofer[D]. Delft: Delft University of Technology, 2013 [Google Scholar]
10. Venturi S, Panahi I. Hybrid RLS-NLMS algorithm for real-time remote active noise control using directional ultrasonic loudspeaker[C]//Conference of the IEEE Industrial Electronics Society, 2015 [Google Scholar]
11. LI Yunhong, LI Xiaoying, ZHOU Jinglei, et al. The application of masking effect in the speaker abnormal sounds detection[J]. Journal of Northwest University, 2015, 45(2): 218–222 (in Chinese) [Google Scholar]
12. SERBAN G, IANA G V, ANGHELESCU P. Fault detection of direct radiator loudspeaker systems by phase characterization[C]//8th International Conference on Electronics, 2016 [Google Scholar]
13. PHILIP L. Loudspeaker parameter identification for automatic fault detection[M]. Gothenburg: Chalmers University of Technology, 2018 [Google Scholar]

## All Figures

 图1次级声源阻抗曲线模型 In the text
 图2不同损坏程度次级声源的滤波器系数曲线 In the text
 图3不同损坏程度次级声源的幅频特性曲线 In the text
 图4涡桨飞机噪声频谱 In the text
 图5正常状态不同噪声的阻抗曲线 In the text
 图6飞机声激励不同状态次级声源阻抗曲线 In the text
 图7测试样本Δf0和ΔQ分布图 In the text

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.