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dc.contributor.authorSong, Zhongchang
dc.contributor.authorZhang, Yu
dc.contributor.authorWei, Chong
dc.contributor.authorYang, Wuyi
dc.contributor.authorXu, Xiaohui
dc.date.accessioned2020-08-10T07:46:22Z
dc.date.available2020-08-10T07:46:22Z
dc.date.issued2020
dc.identifier.citationSong, Z. and Zhang, Y. and Wei, C. and Yang, W. and Xu, X. 2020. Biosonar emission characteristics and beam control of odontocetes. Acta Physica Sinica. 69 (15): Article No. 154301.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/80487
dc.identifier.doi10.7498/aps.69.20200406
dc.description.abstract

Odontocetes have evolved for millions of years to own a unique echolocation system. The exceptional performance of odontocetes echolocation system can provide reference to artificial sonar systems, acoustic metamaterials and sound control designs. Research on odontocetes biosonar requires interdisciplinary effort, including acoustics, biology, biomimetics, anatomy, physiology and signal analysis. In this paper, we review odontoctes’ biosonar emission process from aspects of anatomy, biosonar signal and beam formation. To begin, computed tomography scanning and untrasound measurements are combined to reconstruct the sound speed and density distributions. To follow, efforts are thrown to probe into the biosonar signal and its corresponding acoustic behavior. Numerical simulations are used to investigate the odontocetes’ biosonar beam formation. The secret of exceptional performance of odontocetes’ echolocation system lies in their unique anatomy. Odontocete integrates acoustic structures with different acoustic impedances, namely solid bony structures, air space and soft tissues as a whole emission system to efficiently modulate sound propagation and sound beam formation. These acoustic structures are well organized in the forehead, forming a natural acoustic metamaterial to perform a good control of sounds. These results can enlighten artificial sonar designs.

dc.languageChinese
dc.publisherScience Press
dc.titleBiosonar emission characteristics and beam control of odontocetes
dc.typeJournal Article
dcterms.source.volume69
dcterms.source.startPage154301-1
dcterms.source.endPage154301-12
dcterms.source.issn1000-3290
dcterms.source.titleActa Physica Sinica
dc.date.updated2020-08-10T07:46:22Z
curtin.departmentSchool of Earth and Planetary Sciences (EPS)
curtin.accessStatusFulltext not available
curtin.facultyFaculty of Science and Engineering
curtin.contributor.orcidWei, Chong [0000-0002-2359-9285]
curtin.contributor.researcheridWei, Chong [E-2488-2019]
curtin.identifier.article-number15
curtin.contributor.scopusauthoridWei, Chong [55752752200]


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