Detection of Gas Leaks from Sea Bed Using A Small Circular Array

In this paper a small circular array of diameter ~ 15cm, with six elements, is used to detect the gas leaks from sea bed around the bore hole. Signal echo from different bearings will be extracted using beamforming technology. Such an array has a wide beam width and high sidelobe levels using conven...

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Bibliographic Details
Published inOCEANS 2019 - Marseille pp. 1 - 5
Main Authors Feng, M. Y., Huang, S. H., Yang, T. C., Tu, Q. Y., Wan, X. H., Wang, Y. Q.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.06.2019
Subjects
Bubble detection
Circular array
Deconvolution
Superdirective beamforming
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Summary:In this paper a small circular array of diameter ~ 15cm, with six elements, is used to detect the gas leaks from sea bed around the bore hole. Signal echo from different bearings will be extracted using beamforming technology. Such an array has a wide beam width and high sidelobe levels using conventional beamforming (CBF) which degrades the performance of beamforming results. In this paper, we use a superdirective beamforming technology which provides high resolution in bearing estimation with high array gain as well as strong interference rejection capability compared with CBF. This paper presents experiment results in an anechoic tank to locate the bearing of gas seeps.
DOI:10.1109/OCEANSE.2019.8867220