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2021
Conference Paper
Titel
Localization of acoustic gas leakage sources with a circular microphone array
Abstract
In this article, a direction of arrival (DOA) based estimation method is proposed for the localization of acoustic gas leakage sources indoors, with the use of a microphone array. Since the narrowband signal assumption for the uniform circular array (UCA)-MUSIC and ESPRIT methods are not applicable to the case of gas leakage sources, different approaches including the incoherent, coherent, and frequency-domain frequency-invariant beamformer ones are leveraged and optimized for the signal shape considered. The proposed method is evaluated with real-world experimental results obtained with a gas pistol resembling a leakage. The evaluation using experimental data demonstrates that coherent subspace (CSS)-MUSIC is ahead of other methods in the error metrics.
Author(s)