Passive underwater acoustic barcodes using Rayleigh wave resonance
Applied Physics
2022-04-06 v1
Abstract
A passive underwater acoustic marker is presented and its feasibility for underwater recognition, positioning, and navigation is proved by a numerical method and experimental results. These markers are composed of acrylic elastic objects designed by backscattering strong peaks associated with the subsonic Rayleigh wave resonance of a polymer target excited by a broadband pulse, and having a unique acoustic signature for a selected frequency band, akin to acoustic barcodes. Therefore, the backscattering response of markers can be regulated by changing the geometry of elastic objects. These acoustic barcodes naturally operate in a wider frequency band, and have a longer lifetime and lower cost, compared with active acoustic markers.
Keywords
Cite
@article{arxiv.2107.13860,
title = {Passive underwater acoustic barcodes using Rayleigh wave resonance},
author = {Yanling Zhou and Jun Fan and Jinfeng Huang and Bin Wang},
journal= {arXiv preprint arXiv:2107.13860},
year = {2022}
}