%0 Conference Proceedings
%T Sub-Antenna Sparse Processing for Coherence Lossin Underwater Source Localization
%+ Lab-STICC_ENSTAB_CID_TOMS
%+ Pôle STIC_AP
%A Drémeau, Angélique
%A Lefort, Riwal
%< avec comité de lecture
%B EUSIPCO 2017
%C Kos, Greece
%8 2017-08-28
%D 2017
%R 10.23919/EUSIPCO.2017.8081643
%Z Engineering Sciences [physics]/Acoustics [physics.class-ph]Conference papers
%X In underwater acoustics, inversion tech-niques, also called "Matched Field" processing, remainthe best methods for locating acoustic sources. But thisis without counting on the environmental parameterfluctuations that lead to injurious coherence loss.We have shown in a previous work that a sub-antennaapproach could be well suited to deal with such coher-ence loss, however at the expense of a lower resolution.In this paper, we propose to solve this drawback byconsidering sparse priors.In the experimental part of this paper, by usingnumerical simulations of plane waves subject to coher-ence loss, we demonstrate that the proposed methodnot only outperforms a classical beamformer in termsof source localization performance, but also, that itimproves the antenna resolution.
%G English
%L hal-01653652
%U https://hal.science/hal-01653652
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