DOA estimation in car for abnormal sound localisation
Guan, L, Gu, F, Fazenda, BM, Ball, A, Yichun, Y and Pengxiao, T 2009, DOA estimation in car for abnormal sound localisation , in: 8th International Conference on Damage Assessment of Structures, 3-5 August 2009, Beijing.
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Spurious noise in car cabinet can be not only annoying bust also indicative of some potential faults. A small square microphone array with 4 sensors was adopted in this paper to localize the sound source in car for fault diagnosis. A new voice activity detection (VAD) algorithm was proposed for the typical discontinuous short-time noise in car due to some fault and applied to direction of arrival (DOA) estimation as a pre-processing stage. Four different time delay estimation methods were compared based on the measurements from a typical passenger. Experimental results illustrate that the VAD algorithm is crucial to achieve robust fault localization performance and the generalized cross-correlation method with phase transform weighting function is an appropriate fault localizer in car.
|Item Type:||Conference or Workshop Item (Paper)|
|Uncontrolled Keywords:||DOA estimation, VAD, fault localization|
|Themes:||Subjects / Themes > Q Science > QC Physics > QC221-246 Acoustics - Sound|
Subjects outside of the University Themes
|Schools:||Colleges and Schools > College of Science & Technology > School of Computing, Science and Engineering|
Colleges and Schools > College of Science & Technology
Colleges and Schools > College of Science & Technology > School of Computing, Science and Engineering > Acoustics Research Centre
|Journal or Publication Title:||Proceedings of 8th International Conference on Damage Assessment of Structures|
|Depositing User:||BM Fazenda|
|Date Deposited:||08 Jul 2010 16:41|
|Last Modified:||27 Sep 2011 12:13|
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