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DOA Estimation in Car for Abnormal Sound Localisation

Guan, Luyang, Fengshou, Gu, Fazenda, Bruno, Ball, Andrew, Yichun, Yang and Pengxiao, Teng (2009) DOA Estimation in Car for Abnormal Sound Localisation. In: 8th International Conference on Damage Assessment of Structures, 3-5 August 2009, Beijing, China. (Submitted)

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Abstract

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)
Subjects: T Technology > T Technology (General)
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Schools: School of Computing and Engineering
School of Computing and Engineering > Diagnostic Engineering Research Centre
School of Computing and Engineering > Automotive Engineering Research Group
School of Computing and Engineering > Diagnostic Engineering Research Centre > Energy, Emissions and the Environment Research Group
School of Computing and Engineering > Diagnostic Engineering Research Centre > Machinery Condition and Performance Monitoring Research Group
School of Computing and Engineering > Diagnostic Engineering Research Centre > Measurement System and Signal Processing Research Group
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Depositing User: Sara Taylor
Date Deposited: 17 Mar 2009 14:35
Last Modified: 25 Aug 2015 02:09
URI: http://eprints.hud.ac.uk/id/eprint/3660

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