An array pairing method for localizing distributed sources by acoustic beamforming

Elias J G Arcondoulis; Yu Liu; Pengwei Xu; Nanshu Chen

doi:10.1121/10.0000496

An array pairing method for localizing distributed sources by acoustic beamforming

J Acoust Soc Am. 2020 Jan;147(1):EL7. doi: 10.1121/10.0000496.

Authors

Elias J G Arcondoulis¹, Yu Liu¹, Pengwei Xu¹, Nanshu Chen²

Affiliations

¹ Shenzhen Key Laboratory of Complex Aerospace Flows, Department of Mechanics and Aerospace Engineering, Southern University of Science and Technology, Shenzhen, Guangdong Province, 518055, People's Republic of China.
² School of Power and Energy, Northwestern Polytechnical University, Xi'an, Shaanxi Province, 710129, People's Republic of Chinaelias@sustech.edu.cn, liuy@sustech.edu.cn, xupw@mail.sustech.edu.cn, chennanshu@mail.nwpu.edu.cn.

PMID: 32006994
DOI: 10.1121/10.0000496

Abstract

An acoustic beamforming concept is presented that alleviates some misrepresentation caused by deconvolution algorithms that can oversimplify distributed sources as a series of point sources. In the Array Pairing Method (APM) an initial array beamforms the acoustic source, then an iterative randomized array is calculated whereby the square-rooted product of the beamformer output possesses a minimum product of Maximum Sidelobe Level (MSL) and Main Lobe Width (MLW). A single and distributed source simulation and a single and dual speaker experiment using the APM reveal significant improvements in MSL and MLW and resolution in the distributed source region.