2D sound source localization technology based on diaphragm EFPI fiber microphone array

Zhang, Sijun, Wan, Shengpeng, Wang, Yangfeng, Zhang, Bin, Zhang, Zhengping, Zhong, Haihua, Shi, Jiulin, Sun, Jizhou, He, Xingdao and Wu, Qiang (2022) 2D sound source localization technology based on diaphragm EFPI fiber microphone array. Optics Communications, 519. p. 128435. ISSN 0030-4018

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Official URL: https://doi.org/10.1016/j.optcom.2022.128435

Abstract

The technologies of two-dimensional sound source localization based on diaphragm extrinsic Fabry–Perot interferometer (EFPI) fiber microphone array have been studied in this paper. The fiber microphone array consists of three EFPI. Self-calibrated intensity demodulation technology with simple structure and low cost is adopted to demodulate the sound signals. Using effective sound signal extraction technology to find the starting point and end point of sound signal, combining with time differences of arrival (TDOA) positioning technology, high-precision sound source location is successfully realized. The average positioning error of this system is no larger than 4.82%. The system has the advantages of low cost, high practicability and wide application scenarios.

Item Type: Article
Additional Information: Funding Information: This work was supported in part by the Natural Science Foundation of Jiangxi Province, China under Grant 20202ACBL202002, in part by The Academic and Technical Leader Plan of Jiangxi Provincial Major Disciplines, China under Grant 20172BCB22012, in part by the National Natural Science Foundation of China under Grant 61465009.
Uncontrolled Keywords: Diaphragm EFPI, Effective signal extraction, Positioning, TDOA
Subjects: F300 Physics
H600 Electronic and Electrical Engineering
Department: Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering
Depositing User: Rachel Branson
Date Deposited: 01 Jun 2022 10:58
Last Modified: 01 Jun 2022 11:00
URI: http://nrl.northumbria.ac.uk/id/eprint/49243

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